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Building Supporters Residential Standards of Practice – InterNACHI + BSHP Standards

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InterNACHI Standards of Practice

InterNACHI property inspectors are professional individuals who in exchange for a fee agree to accept the responsibility of evaluating and reporting on the interrelated conditions and components of a property with a “degree of care that a reasonably prudent home inspector would exercise,” Inspection is defined as “a non-invasive physical examination, performed for a fee in connection with the transfer … of a property,” undertaken in an attempt to identify “material defects” that could significantly “affect the value, desirability, habitability, or safety of the dwelling.” However, even this definition is subject to interpretation and debate, and what constitutes a InterNACHI inspection needs to be explained and clearly understood, for practical, ethical, and legal purposes. To borrow an example from medicine, an InterNACHI property inspector is similar to a general practitioner, who has learned a lot about medicine and the human body but has not specialized in any one particular discipline. Similarly, InterNACHI inspectors know a lot about the building trades, such as roofing, plumbing, heating, air-conditioning, and electrical, but they are not licensed specialists. In fact, like general practitioners, it is their responsibility to defer to specialists. For this reason, InterNACHI property inspections are limited in their scope.

InterNACHI property inspections are “non-invasive” and essentially visual and, as stated, are intended to alert consumers in a “written report” to “material defects” that exist at the time of an inspection, defects that could significantly affect the value of a property or pose a threat to health and safety. A property inspection is not technically exhaustive, and is not intended to be, and will not reveal every defect and deficiency. For instance, a property inspection does not include research to establish code-compliance, recall notices, or prior reports. Therefore, an inspection report should not be regarded as a substitute for the seller’s transfer disclosure statement (TDS), which the sellers are required to provide by the Business and Professions Code, or as an insurance policy, warranty, or guaranty. Some defects may be latent, and/or become apparent at a later point in time, which is why inspections have been sensibly characterized as snapshots in time. And it is essential that consumers understand this and, thereby, have reasonable expectations. However, the terms “non-invasive” and “visual” also need further explanation. For example, an inspector may remove the interior cover from an electrical panel, which could be said to be invasive, and inserting an electrical tester into a wall outlet could be construed as being more than a visual examination. Regardless, most inspectors remove cover panels and use a variety of specialized instruments in the service of their clients, but the use of such instruments does not distinguish them as specialists; only a licensing authority can legitimately confer that distinction. InterNACHI inspectors adhere to clearly defined standards and state laws, and to this extent InterNACHI standards are intended to be legally binding.

DEFINITIONS AND SCOPE

1.1.
A general home inspection is a non-invasive, visual examination of the accessible areas of a residential property (as delineated below), performed for a fee, which is designed to identify defects within specific systems and components defined by these Standards that are both observed and deemed material by the inspector. The scope of work may be modified by the Client and Inspector prior to the inspection process.

  • The general home inspection is based on the observations made on the date of the inspection, and not a prediction of future conditions.
  • The general home inspection will not reveal every issue that exists or ever could exist, but only those material defects observed on the date of the inspection.

1.2.
A material defect is a specific issue with a system or component of a residential property that may have a significant, adverse impact on the value of the property, or that poses an unreasonable risk to people. The fact that a system or component is near, at or beyond the end of its normal useful life is not, in itself, a material defect.

1.3.
A general home inspection report shall identify, in written format, defects within specific systems and components defined by these Standards that are both observed and deemed material by the inspector. Inspection reports may include additional comments and recommendations. Inspectors will report on required items only when a defect is found. 

LIMITATIONS, EXCEPTIONS & EXCLUSIONS

2.1. Limitations for all inspections, including auxiliary services:

  • An inspection is not technically exhaustive. This means that we do not diagnose the condition of components in a house beyond their function with normal operator controls. If a component does not work, further evaluation and/or repair will be noted in the report.
  • An inspection does not guarantee a property will be free of defects, or that all defects will be reported/observed within a limited time frame and scope. There is no insurance nor coverage of any kind of repairs. 
  • An inspection will not identify concealed or latent defects. These are defects that are not apparent on the day of the inspection, or those defects that manifest after the inspection. An example is a furnace that works on the day of inspection, but fails after the inspection. Another example is a drain line that flows when the inspector runs clear water, but gets clogged with the use of toilet paper, soap, food items, etc.
  • An inspection will not deal with aesthetic concerns or what could be deemed matters of taste, cosmetic defects, etc. Examples of excluded items includes paint, stains on flooring material, worn finishes on cabinets, doors, or decorator items such as curtains, curtain rods, blinds, etc.
  • An inspection will not determine the suitability of the property for any use.
  • An inspection does not determine the market value of the property or its marketability.
  • An inspection does not determine the insurability of the property.
  • An inspection does not determine the advisability or inadvisability of the purchase of the inspected property.
  • An inspection does not determine the life expectancy of the property or any components or systems therein. Everything in a house can wear out. This includes appliances, HVAC equipment, roofing material, faucets and other plumbing fixtures, door locks and hardware, flooring, window hardware, etc. Just like an older car, parts wear out and a home inspection is not intended to determine the life remaining.
  • An inspection does not include items not permanently installed. Examples include refrigerators, clothes washing and drying equipment, electrical equipment attached to a receptacle (timers, TV’s, water feature pumps, windows AC units, room heaters). * Building Supporters High-Performance standards include inspection and recall check (only when data is immediately available in database) including: Refrigerators, clothes washing and drying equipment, dishwashers, and trash compactors.
  • These Standards of Practice apply only to properties with four or fewer residential units.

2.2.Exclusions:

  1. The inspector is not required to determine:
  • Property boundary lines or encroachments.
  • The condition of any component or system that is not readily accessible.
  • The service life expectancy of any component or system.
  • The size, capacity, BTU, performance or efficiency of any component or system. We rely on the builder having installed items according to codes in place at the time of construction. Inspectors do not calculate capacities or efficiency of any items such as HVAC equipment, pool heating and pumping equipment, solar (heating or PV).
  • The cause or reason of any condition.
  • The cause for the need of correction, repair or replacement of any system or component.
  • Future conditions.
  • Compliance with codes or regulations. Due to changing building codes on a nearly annual basis, it is impossible for a home inspector to know the exact codes in place at the time of construction. It is not reasonable to hold an older home to today’s building standards. While there are obvious right and wrong ways of installing items or building homes, we specifically do not cite codes within the scope of a home inspection.
  • The presence of evidence of rodents, birds, animals, insects, or other pests.
  • The presence of mold, mildew or fungus. * Building Supporters high-performance standards include a visual-only mold assessment. Building Supporters also offers an auxiliary mold testing service, which includes laboratory testing as an add-on service, for an additional fee.
  • The presence of airborne hazards, including radon. Colorado has a high occurrence of Radon, and * Building Supporters therefore offers an auxiliary radon testing service as an add-on service, for an additional fee.
  • The air quality.* Building Supporters offers air sampling and testing as an add-on service, for an additional fee.
  • The existence of environmental hazards, including lead paint, asbestos or toxic drywall. * Building Supporters offers material sampling and testing as an add-on service, for an additional fee.
  • The existence of electromagnetic fields.
  • Any hazardous waste conditions.
  • Any manufacturers’ recalls or conformance with manufacturer installation, or any information included for consumer protection purposes. * Building Supporters High-Performance standards include a recall check (only when data is immediately available in database) for: HVAC equipment, hot water heaters, refrigerators, clothes washing and drying equipment, dishwashers, and trash compactors. 
  • Acoustical properties. * Building Supporters High-Performance standards include a db level test for exhaust fans to report on operation performance.
  • Correction, replacement or repair cost quotes.
  • Quotes of the cost to operate any given system.
  1. The inspector is not required to operate:
  • any system that is shut down.
  • any system that does not function properly.
  • or evaluate low-voltage electrical systems such as, but not limited to:
  • Phone lines
  • Cable lines
  • Satellite dishes
  • Antennae
  • Lights
  • Remote controls
  • Any system that does not turn on with the use of normal operating controls.
  • Any shut-off valves or manual stop valves.
  • Any electrical disconnect or over-current protection devices. Home inspectors do not test circuit breakers to determine their effectiveness at times of over-load. A licensed electrician has the specialized tools for this. If you are buying an older home and are concerned about the functionality of breakers, you should have the electrical panel and the breakers tested by a licensed electrician.
  • Any alarm systems.
  • Moisture meters, gas detectors or similar equipment. * Building Supporters High-Performance standards include a general Infrared Thermography Survey and the use of moisture meters based on thermal findings. General gas leak detection is included in Building Supporters High-Performance standards; but does not include all gas pipes, only a representative sample.

III. The inspector is not required to:

  • Move any personal items or other obstructions, such as, but not limited to: throw rugs, carpeting, wall coverings, furniture, ceiling tiles, window coverings, equipment, plants, ice, debris, snow, water, dirt, pets, or anything else that might restrict the visual inspection.
  • Dismantle, open or uncover any system or component.
  • Enter or access any area that may, in the opinion of the inspector, be unsafe. This is solely left to the discretion of the home inspector. An area may be deemed unsafe to enter due to limited clearance, animals, pests, standing water, poor electrical installations, animal waste, laceration hazards, or any other item deemed to be a hazard. This includes yards, side yards, crawl spaces, attics, rooms, garages, or storage rooms.
  • Enter crawlspaces or other areas that may be unsafe or not readily accessible.
  • Inspect underground items, such as, but not limited to: lawn-irrigation systems, underground storage tanks or other indications of their presence, whether abandoned or actively used.
  • Do anything which may, in the inspector’s opinion, be unsafe or dangerous to the inspector or others, or damage property, such as, but not limited to: walking on roof surfaces, climbing ladders, entering attic spaces, or negotiating with pets.
  • Inspect decorative items. This includes curtains, blinds, furniture, and hanging or stationary art.
  • Inspect common elements or areas in multi-unit housing. If a component is not the property of the seller, it will not be inspected such as the roof of a condominium or townhouse, exterior stairs, pools, railings, stucco, decks, or any common area items.
  • Inspect intercoms, speaker systems or security systems.
  • Offer guarantees or warranties.
  • Offer or perform any engineering services. This means that we do not calculate the load-bearing ability of any structure or determine any structural components for adequacy. Home inspectors rely on the builder having built the house to code and according to plans in place at the time of construction. If a part of the structure appears inadequate, the inspector will note it in the report for further evaluation. This includes deck structures, floor structures and roof structures.
  • Offer or perform any trade or professional service other than general home inspection.
  • Research the history of the property, or report on its potential for alteration, modification, extendibility or suitability for a specific or proposed use for occupancy.
  • Determine the age of construction or installation of any system, structure or component of a building, or differentiate between original construction and subsequent additions, improvements, renovations or replacements.
  • Determine the insurability of a property.
  • Perform or offer Phase 1 or environmental audits. 
  • Inspect any system or component that is not included in these Standards.

STANDARDS OF PRACTICE

3.1. Roof

There are many roof types, and every roof will wear differently relative to its age, the number of its layers, the quality of its material, the method of its application, its exposure to direct sunlight or other prevalent weather conditions, and the quality and regularity of its maintenance. Regardless of its design-life, every roof is only as good as the waterproof membrane beneath it, which is concealed and cannot be examined without removing the roofing material, and this is equally true of most roofs. In fact, the material on the majority of pitched roofs is not designed to be waterproof only water-resistant. However, what remains true of all roofs is that, whereas their condition can be evaluated, it is virtually impossible for anyone to detect a leak except as it is occurring or by specific water tests, which are beyond the scope of the inspection and disclaimed. The inspector may walk the surface of a roof in order to inspect it and its components, but may inspect it by other means if the roof cannot be safely accessed, due to its height, weather conditions, or if the roofing material could be damaged by foot traffic.

  1. The inspector shall inspect from ground level or the eaves: We do not walk on roofs that have a wood shake, concrete tile, clay tile, or fragile composite tile covering, or those roofs that are greater than 17 feet from the ground, wet, excessively sloped, or for any reason may not be safe to mount. Inspector reserves the right to decline walking on any roof, for any reason. Building Supporters reserve the right to utilize aerial drones and/or pole cameras to perform roof inspections.
  • the roof-covering materials;
  • the gutters; Building Supporters’ high performance standards include reporting on readily-visible gutter debris/clogs.
  • the downspouts;
  • the vents, flashing, skylights, chimney, and other roof penetrations; and
  • the general structure of the roof from the readily accessible panels, doors or stairs.
  1. The inspector shall describe:
  • the type of roof-covering materials.

III. The inspector shall report as in need of correction:

  • observed indications of active roof leaks. The term “indications” means any signs of a past leak including staining, damaged flashing, rot, etc. Some roof leaks may occur for which there was no indication, and those leaks could not be identified by a home inspector particularly after periods of dry weather.
  1. The inspector is not required to:
  • walk on any roof surface.
  • predict the service life expectancy.
  • inspect underground downspout diverter drainage pipes.
  • remove snow, ice, debris or other conditions that prohibit the observation of the roof surfaces.
  • move insulation.
  • inspect antennae, satellite dishes, lightning arresters, de-icing equipment, or similar attachments.
  • walk on any roof areas that appear, in the opinion of the inspector, to be unsafe.
  • walk on any roof areas if it might, in the opinion of the inspector, cause damage.
  • perform a water test.
  • warrant or certify the roof.
  • confirm proper fastening or installation of any roof-covering material.

3.2. Exterior

It is important to maintain a property, including painting or sealing walls, walkways, decks, and other hard surfaces, because the cost of renovating a property will always exceed that of having maintained it. Regardless, it is particularly important for homeowners to keep building walls sealed, because they provide the primary barrier against the elements. Unsealed cracks at sill-plates and around windows, doors, and thresholds can permit moisture intrusion. Unfortunately, the evidence of such intrusion can be concealed by a coat of fresh paint and may only become obvious during rains or when water ponds, which is the primary reasons why a InterNACHI inspection should not be misinterpreted as a form of warranty or guarantee.

Positive grading and drainage are essential to the welfare of a property, and are usually the primary concern of architects and builders. Moisture can deteriorate most surfaces, and the ideal site will be graded to conduct water away from a building. In fact, the ideal building will be surrounded by hard surfaces that slope way from the exterior walls, the interior floors will be several inches higher than the exterior grade, and the building will have gutters and downspouts and a system of drainage designed to prevent any moisture from threatening the foundation or the living space. Unfortunately, many properties do not meet this ideal, conditions on most can generally be improved, and all need to be monitored and maintained to prevent damage. Also, inspectors cannot see inside area drains and do not water-test them, but they can become blocked by debris, occluded by silt, and damaged by movement. Therefore, buyers should question sellers about the functionality of any such system, have it serviced by a specialist, or assume the risk of having a system that does not function well and the damage that might result.

A home inspector cannot determine the effectiveness of grading and drainage during excessive rain or unusually heavy rain.

  1. The inspector shall inspect:
  • the exterior wall-covering materials, flashing and trim;
  • all exterior doors;
  • adjacent walkways and driveways;
  • stairs, steps, stoops, stairways and ramps;
  • porches, patios, decks, balconies and carports;
  • railings, guards and handrails;
  • the eaves, soffits and fascia;
  • a representative number of windows; and
  • vegetation, surface drainage, retaining walls and grading of the property, where they may adversely affect the structure due to moisture intrusion.
  • Building Supporters’ high performance standards include general measurement of readily-accessible window sill slopes, when a protruding slope is installed; representative sample only.
  1. The inspector shall describe:
  • the type of exterior wall-covering materials.

III. The inspector shall report as in need of correction:

  • any improper spacing between intermediate balusters, spindles and rails.
  1. The inspector is not required to:
  • inspect or operate screens, storm windows, shutters, awnings, fences, outbuildings, or exterior accent lighting.
  • inspect items that are not visible or readily accessible from the ground, including window and door flashing.
  • inspect or identify geological, geotechnical, hydrological or soil conditions.
  • inspect recreational facilities or playground equipment.
  • inspect seawalls, breakwalls or docks.
  • inspect erosion-control or earth-stabilization measures.
  • inspect for safety-type glass.
  • inspect underground utilities.
  • inspect underground items.
  • inspect wells or springs. * Building Supporters offers an auxiliary service as an add-on service, for an additional fee.
  • inspect solar, wind or geothermal systems.
  • inspect swimming pools or spas. * Building Supporters offers an auxiliary service as an add-on service, for an additional fee.
  • inspect wastewater treatment systems, septic systems or cesspools. * Building Supporters offers an auxiliary service as an add-on service, for an additional fee.
  • inspect irrigation or sprinkler systems.
  • inspect drainfields or dry wells.
  • determine the integrity of multiple-pane window glazing or thermal window seals. * Building Supporters High-Performance standards include a visual-only IGU integrity inspection, which looks for debris in the window seal. A representative sample only; does not include not all windows. A thermal inspection may be performed at the discretion of the inspector.

3.3. Basement, Foundation, Crawlspace & Structure

All foundations are dependent on the soil beneath them for support, but soils are not uniform. Some that might appear to be firm and stable can liquefy and become unstable during seismic activity. Also, expansive soils can expand to twice their volume with the influx of water and move structures with relative ease, raising and lowering them and cracking slabs and other hard surfaces. Regardless, foundations are not uniform, and conform to the structural standard of the year in which they were built. Therefore, the inspector will identify the foundation type and report on any evidence of significant deformation. However, cracks or deteriorated surfaces in foundations are common. In fact, it would be rare to find a raised foundation wall that is not cracked or deteriorated in some way, or a slab foundation that did not include some cracks concealed beneath the carpeting and padding. Regardless, InterNACHI inspectors cannot predict the future performance of any structure or its foundation, regardless of its age or type.

  1. The inspector shall inspect:
  • the foundation;
  • the basement;
  • the crawlspace; and
  • structural components.
  1. The inspector shall describe:
  • the type of foundation; and
  • the location of the access to the under-floor space.

III. The inspector shall report as in need of correction:

  • observed indications of wood in contact with or near soil;
  • observed indications of active water penetration;
  • observed indications of possible foundation movement, such as sheetrock cracks, brick cracks, out-of-square door frames, and unlevel floors; and
  • any observed cutting, notching and boring of framing members that may, in the inspector’s opinion, present a structural or safety concern.
  1. The inspector is not required to:
  • enter any crawlspace that is not readily accessible or where entry could cause damage or pose a hazard to the inspector. * Building Supporters High-Performance standards include the use of crawlspace bot when obstructive or hazardous conditions are not present. Crawlspace bot has limitations and the inspector has sole discretion to mark as inaccessible area or operate crawlspace bot; operation is not guaranteed.  
  • move stored items or debris.
  • operate sump pumps with inaccessible floats. Building Supporters high performance standards include visual-only inspection of readily-accessible sump pumps.
  • identify the size, spacing, span or location or determine the adequacy of foundation bolting, bracing, joists, joist spans or support systems.
  • provide any engineering or architectural service.
  • report on the adequacy of any structural system or component.

3.4. Heating

The components of most heating and air-conditioning systems in Colorado have a design-life ranging from ten to twenty years, depending on the climate zone and the extent of their use, but can fail prematurely with poor maintenance. Inspectors test and evaluate them in accordance with the standards of practice, which means that they do NOT dismantle any of the following concealed components: heat exchangers, also known as the fireboxes or combustion chambers, electronic air-cleaners, humidifiers, and in-line duct motors or dampers. Similarly, they do not pressure-test components, and will not reverse the cycle on a heat pump if doing so might damage a coil. However, from the point of view of safety, you need to be aware that even the most modern fossil-fuel-burning systems can produce carbon monoxide, which in a sealed or poorly ventilated room can result in sickness, debilitating injury, and even death. Therefore, it is essential that any recommendation that is made for service or a second opinion be performed by a specialist, who might reveal additional defects or recommend some upgrades that could affect your evaluation of the system(s).

  1. The inspector shall inspect:
  • heating system, using normal operating controls.
  1. The inspector shall describe:
  • the location of the thermostat for the heating system;
  • the energy source; and
  • the heating method.

III. The inspector shall report as in need of correction:

  • any heating system that did not operate; and
  • if the heating system was deemed inaccessible.
  • Building Supporters’ high performance standards include the general HVAC condenser pad slope level.
  1. The inspector is not required to:
  • inspect or evaluate the interior of flues or chimneys, fire chambers, heat exchangers, combustion air systems, fresh-air intakes, humidifiers, dehumidifiers, electronic air filters, geothermal systems, or solar heating systems.
  • inspect fuel tanks or underground or concealed fuel supply systems.
  • determine the uniformity, temperature, flow, balance, distribution, size, capacity, BTU, or supply adequacy of the heating system.
  • light or ignite pilot flames.
  • activate heating, heat pump systems, or other heating systems when ambient temperatures or other circumstances are not conducive to safe operation or may damage the equipment.
  • override electronic thermostats.
  • evaluate fuel quality.
  • verify thermostat calibration, heat anticipation, or automatic setbacks, timers, programs or clocks.
  • Measure or calculate the air for combustion, ventilation, or dilution of the flue gases for appliances. 

3.5. Cooling

  1. The inspector shall inspect:
  • the cooling system using normal operating controls.
  1. The inspector shall describe:
  • the location of the thermostat for the cooling system; and
  • the cooling method.

III. The inspector shall report as in need of correction:

  • any cooling system that did not operate; and
  • if the cooling system was deemed inaccessible.
  1. The inspector is not required to:
  • determine the uniformity, temperature, flow, balance, distribution, size, capacity, BTU, or supply adequacy of the cooling system.
  • inspect portable window units, through-wall units, or electronic air filters.
  • operate equipment or systems if the exterior temperature is below 65° Fahrenheit, or when other circumstances are not conducive to safe operation or may damage the equipment.
  • inspect or determine thermostat calibration, cooling anticipation, or automatic setbacks or clocks.
  • examine electrical current, coolant fluids or gases, or coolant leakage.

3.6. Plumbing

Plumbing systems have common components, but they are not uniform. In addition to fixtures, these components include gas pipes, water pipes, pressure regulators, pressure relief valves, shut-off valves, drain pipes, vent pipes, and water-heating devices. The water pressure in pipes is commonly confused with water volume, or functional flow, but whereas high volume may be desirable high pressure is not. In fact, whenever street pressure exceeds eighty pounds per square inch (PSI) a regulator is required, which typically comes factory preset between forty-five and sixty-five PSI. Consumers need to understand that leaks will occur in any system and particularly a system with older pipes or one in which a regulator fails and high pressure is able to stress the washers and diaphragms of components.

Waste and drainpipes are also not uniform, and range from a modern ABS type [acrylonitrile butadiene styrene] to older types made of cast-iron, galvanized steel, clay, and even a cellulose material that has been coated with tar (Orangeburg pipe). The condition of drainpipes is usually directly related to their age. Older ones are subject to damage through decay and root or seismic activity, whereas ABS ones are virtually impervious to damage. However, as significant portions of drainpipes are concealed, inspectors can only infer their condition by observing the draw at drains. Nonetheless, blockages and leaks will occur in the life of any system. Shower pans and bath tubs are flood-tested, but not guaranteed to never leak after testing. [See Section 12]. Blockages and leaks in main sewer pipes are common and are costly to repair or replace, and for this reason we sensibly disclaim responsibility for evaluating the concealed portions and strongly recommend that buyers arrange to have the main sewer pipe video-scanned, or accept the risk of any damage that might occur. * Building Supporters offers auxiliary water testing, well inspection, and sewer line scope service as add-on services, for additional fees.

  1. The inspector shall inspect:
  • the main water supply shut-off valve;
  • the main fuel supply shut-off valve;
  • the water heating equipment, including the energy source, venting connections, temperature/pressure-relief (TPR) valves, Watts 210 valves, and seismic bracing;
  • interior water supply, including all fixtures and faucets, by running the water;
  • all toilets for proper operation by flushing;
  • all sinks, tubs and showers for functional drainage;
  • the drain, waste and vent system; and
  • drainage sump pumps with accessible floats.
  • Building Supporters’ high performance standards include a toilet tank dye test, performed at the inspectors sole-discretion. Excludes in-wall tank carriers.
  • Building Supporters’ high performance standards include a general slope measurement for drains that are readily-visible; a representative sample only with limited sections measured.
  1. The inspector shall describe:
  • whether the water supply is public or private based upon observed evidence;
  • the location of the main water supply shut-off valve;
  • the location of the main fuel supply shut-off valve;
  • the location of any observed fuel-storage system; and
  • the capacity of the water heating equipment, if labeled.
  • Building Supporters’ high performance standards include reporting the whole-house water pressure using a standard hose bib, only if present, (limited to warm weather only) or an empty washer connection (must be readily accessible).

III. The inspector shall report as in need of correction:

  • deficiencies in the water supply by viewing the functional flow in two fixtures operated simultaneously;
  • deficiencies in the installation of hot and cold water faucets;
  • mechanical drain stops that were missing or did not operate if installed in sinks, lavatories and tubs; and
  • toilets that were damaged, had loose connections to the floor, were leaking, or had tank components that did not operate.
  1. The inspector is not required to:
  • light or ignite pilot flames.
  • measure the capacity, temperature, age, life expectancy or adequacy of the water heater.
  • inspect the interior of flues or chimneys, combustion air systems, water softener or filtering systems, well pumps or tanks, safety or shut-off valves, floor drains, lawn sprinkler systems, or fire sprinkler systems.
  • determine the exact flow rate, volume, pressure, temperature or adequacy of the water supply.
  • determine the water quality, potability or reliability of the water supply or source.
  • open sealed plumbing access panels.
  • inspect clothes washing machines or their connections.
  • operate any valve.
  • test shower pans, tub and shower surrounds or enclosures for leakage or functional overflow protection. * Building Supporters High-Performance standards include filling and draining bath tubs. Neither serve as guarantee or warranty of a leak-free shower/bath tub.
  • test tub jets. * Building Supporters High-Performance standards include filling and testing tub jets unless closed panels, non-accessible controls, or inspector, at their sole discretion cannot readily operate control display panels.
  • evaluate the compliance with conservation, energy or building standards, or the proper design or sizing of any water, waste or venting components, fixtures or piping.
  • determine the effectiveness of anti-siphon, back-flow prevention or drain-stop devices.
  • determine whether there are sufficient cleanouts for effective cleaning of drains.
  • evaluate fuel storage tanks or supply systems.
  • inspect wastewater treatment systems.
  • inspect water treatment systems or water filters.
  • inspect water storage tanks, pressure pumps, or bladder tanks. * Building Supporters High-Performance standards include a visual-only check for signs of exterior tank corrosion.
  • evaluate wait-time to obtain hot water at fixtures, or perform testing of any kind to water heater elements.
  • evaluate or determine the adequacy of combustion air.
  • test, operate, open or close: safety controls, manual stop valves, temperature/pressure-relief valves, control valves, or check valves.
  • examine ancillary or auxiliary systems or components, such as, but not limited to, those related to solar water heating and hot water circulation.
  • determine the existence or condition of polybutylene, polyethylene, or similar plastic piping. * Building Supporters High-Performance standards include a visual-only check and report for a general plumbing piping types, but does not/may not include specific material identification.
  • inspect or test for gas or fuel leaks, or indications thereof * Building Supporters High-Performance standards include general gas leak detection testing; a representative sample only.

3.7. Electrical

There are a wide variety of electrical systems with an even wider variety of components, and any one particular system may not conform to current standards or provide the same degree of service and safety. What is most significant about electrical systems however is that the National Electrical Code is not retroactive, and therefore many electrical systems do not comply with the latest safety standards. It is important to remember that electricity is dangerous, and is best evaluated by a specialist and not a generalist. Inspectors are generalists, and do not perform load-calculations to see if the supply equals the demand, nor remove circuit breakers or cover plates to inspect concealed components. Therefore, in the interests of safety, every electrical deficiency and recommended upgrade should be regarded as a potential safety-hazard that should be serviced as soon as conveniently possible by a licensed specialist.

  1. The inspector shall inspect:
  • the service drop;
  • the overhead service conductors and attachment point;
  • the service head, gooseneck and drip loops;
  • the service mast, service conduit and raceway;
  • the electric meter and base;
  • service-entrance conductors;
  • the main service disconnect;
  • panelboards and over-current protection devices (circuit breakers and fuses);
  • service grounding and bonding;
  • a representative number of switches, lighting fixtures and receptacles, including receptacles observed and deemed to be arc-fault circuit interrupter (AFCI)-protected using the AFCI test button, where possible;
  • all ground-fault circuit interrupter receptacles and circuit breakers observed and deemed to be GFCIs using a GFCI tester, where possible; (excludes GFCI operation where resets are required) and
  • smoke and carbon-monoxide detectors.
  • Building Supporters high performance standards include opening electrical panels, but only at the sole discretion of the inspector. The inspector reserves the right to decline opening any panel, for any reason; inspection does not guarantee panels are to be opened.
  1. The inspector shall describe:
  • the main service disconnect’s amperage rating, if labeled; and
  • the type of wiring observed; including any immediate signs of visual-only aluminum wiring remediation.

III. The inspector shall report as in need of correction:

  • deficiencies in the integrity of the service-entrance conductors’ insulation, drip loop, and vertical clearances from grade and roofs;
  • any unused circuit-breaker panel opening that was not filled;
  • the presence of solid conductor aluminum branch-circuit wiring, if readily visible;
  • any tested receptacle in which power was not present, polarity was incorrect, the cover was not in place, the GFCI devices were not properly installed or did not operate properly, evidence of arcing or excessive heat, and where the receptacle was not grounded or was not secured to the wall; and
  • the absence of smoke detectors.
  1. The inspector is not required to:
  • insert any tool, probe or device into the main panelboard, sub-panels, distribution panelboards, or electrical fixtures.
  • operate electrical systems that are shut down.
  • remove panelboard cabinet covers or dead fronts.
  • operate or re-set over-current protection devices or overload devices.
  • operate smoke or carbon-monoxide detectors.
  • measure or determine the amperage or voltage of the main service equipment, if not visibly labeled.
  • inspect the fire and alarm system or components. *Building Supporters High-Performance standards include a report of missing smoke detectors.
  • inspect the ancillary wiring or remote-control devices.
  • activate any electrical systems or branch circuits that are not energized.
  • inspect low-voltage systems, electrical de-icing tapes, swimming pool wiring, or any time-controlled devices.
  • verify the service ground.
  • inspect private or emergency electrical supply sources, including, but not limited to: generators, windmills, photovoltaic solar collectors, or battery or electrical storage facility.
  • Load test any receptacle or test any GFCI devices
  • inspect spark or lightning arrestors.
  • inspect or test de-icing equipment.
  • conduct voltage-drop calculations.
  • determine the accuracy of labeling.
  • inspect exterior lighting. In particular, home inspectors only inspect exterior lighting directly attached to the house. Landscaping lights, driveway lights, or any lights not directly attached to the house are excluded. We recommend asking the seller to demonstrate proper operation.

3.8. Fireplace

The inspection of masonry chimneys, factory-built chimneys, and free-standing, wood-burning fireplaces is purely visual. It is not a substitute for a Phase 1 inspection. NFPA-style inspections are beyond the scope of a generalist home inspection and should not to be confused with a Level 1, Level 2, or Level 3 inspection, which are conducted by licensed specialists who have knowledge of fire-codes and chimney specifications, and involve dismantling components and/or investigations with specialized equipment, such as video-cameras. * Building Supporters offers Level 1 and 2 chimney inspections as auxiliary service as an add-on service, for an additional fee.

  1. The inspector shall inspect:
  • readily accessible and visible portions of the fireplaces and chimneys;
  • lintels above the fireplace openings;
  • damper doors by opening and closing them, if readily accessible and manually operable; and
  • cleanout doors and frames.
  1. The inspector shall describe:
  • the type of fireplace;

III. The inspector shall report as in need of correction:

  • evidence of joint separation, damage or deterioration of the hearth, hearth extension or chambers;
  • manually operated dampers that did not open and close;
  • the lack of a smoke detector in the same room as the fireplace;
  • the lack of a carbon-monoxide detector in the same room as the fireplace; and cleanouts not made of metal, pre-cast cement, or other non-combustible material.
  1. The inspector is not required to:
  • inspect the flue or vent system.
  • inspect the interior of chimneys or flues, fire doors or screens, seals or gaskets, or mantels.
  • determine the need for a chimney sweep.
  • operate gas fireplace inserts.
  • light pilot flames.
  • determine the appropriateness of any installation.
  • inspect automatic fuel-fed devices.
  • inspect combustion and/or make-up air devices.
  • inspect heat-distribution assists, whether gravity-controlled or fan-assisted.
  • ignite or extinguish fires.
  • determine the adequacy of drafts or draft characteristics.
  • move fireplace inserts, stoves or firebox contents.
  • perform a smoke test.
  • dismantle or remove any component.
  • perform a National Fire Protection Association (NFPA)-style inspection.
  • perform a Phase I fireplace and chimney inspection.

3.9. Attic, Insulation, Ventilation

Attics should be well-insulated and, in most cases, well-ventilated. However, the quality of each will vary from region to region, and has become more stringent with the passage of time. The specific identification of insulating materials is beyond the scope of an inspection, but consumers need to be aware than some old insulating materials may contain asbestos and other potential carcinogens or environmental contaminants.

  1. The inspector shall inspect:
  • insulation in unfinished spaces, including attics, crawlspaces and foundation areas;
  • ventilation of unfinished spaces, including attics, crawlspaces and foundation areas; and
  • mechanical exhaust systems in the kitchen, bathrooms and laundry area.
  1. The inspector shall describe:
  • the type of insulation observed; and
  • the approximate average depth of insulation observed at the unfinished attic floor area or roof structure.

III. The inspector shall report as in need of correction:

  • the general absence of insulation or ventilation in unfinished spaces.
  1. The inspector is not required to:
  • enter the attic or any unfinished spaces that are not readily accessible, or where entry could cause damage or, in the inspector’s opinion, pose a safety hazard.
  • move, touch or disturb insulation.
  • move, touch or disturb vapor retarders.
  • break or otherwise damage the surface finish or weather seal on or around access panels or covers.
  • identify the composition or R-value of insulation material. * Building Supporters offers material laboratory testing, as an auxiliary service for an additional fee.
  • activate thermostatically operated fans.
  • determine the types of materials used in insulation or wrapping of pipes, ducts, jackets, boilers or wiring. * Building Supporters offers material laboratory testing, as an auxiliary service for an additional fee.
  • determine the adequacy of ventilation.

3.10. Doors, Windows & Interior

  1. The inspector shall inspect:
  • a representative number of doors and windows by opening and closing them;
  • floors, walls and ceilings;
  • stairs, steps, landings, stairways and ramps;
  • railings, guards and handrails; and
  • garage vehicle doors and the operation of garage vehicle door openers, using normal operating controls.
  1. Inspector shall describe:
  • a garage vehicle door as manually-operated or installed with a garage door opener.

III. Inspector shall report as in need of correction:

  • improper spacing between intermediate balusters, spindles and rails for steps, stairways, guards and railings;
  • photo-electric safety sensors that did not operate properly; and
  • any window that was obviously fogged or displayed other evidence of broken seals.
  1. The inspector is not required to:
  • inspect paint, wallpaper, window treatments or finish treatments.
  • inspect floor coverings or carpeting.
  • inspect central vacuum systems.
  • inspect for safety glazing.
  • inspect security systems or components.
  • evaluate the fastening of islands, countertops, cabinets, sink tops or fixtures.
  • move furniture, stored items, or any coverings, such as carpets or rugs, in order to inspect the concealed floor structure.
  • move suspended-ceiling tiles.
  • inspect or move any household appliances.
  • inspect or operate equipment housed in the garage, except as otherwise noted.
  • verify or certify the proper operation of any pressure-activated auto-reverse or related safety feature of a garage door.
  • operate or evaluate any security bar release and opening mechanisms, whether interior or exterior, including their compliance with local, state or federal standards.
  • operate any system, appliance or component that requires the use of special keys, codes, combinations or devices.
  • operate or evaluate self-cleaning oven cycles, tilt guards/latches, or signal lights.
  • inspect microwave ovens or test leakage from microwave ovens. * Building Supporters High-Performance standards include a general microwave oven leakage test.
  • operate or examine any sauna, steam-generating equipment, kiln, toaster, ice maker, coffee maker, can opener, bread warmer, blender, instant hot-water dispenser, or other small, ancillary appliances or devices.
  • inspect elevators.
  • inspect remote controls.
  • inspect appliances.
  • inspect items not permanently installed.
  • discover firewall compromises.
  • inspect pools, spas or fountains. * Building Supporters offers an auxiliary service as an add-on service, for an additional fee.
  • determine the adequacy of whirlpool or spa jets, water force, or bubble effects.
  • determine the structural integrity or leakage of pools or spas. * Building Supporters offers general leak detection as an add-on auxiliary service, for an additional fee.

The following sections are added for clarification by Building Supporters and may not be part of InterNACHI SOP’s:

LIVING AREAS

Cracks around windows and doors confirm movement, commonly due to wood shrinkage, settling, or seismic activity, and can reappear, and particularly if they are not repaired well. Such cracks may only have a cosmetic significance but can become the subject of disputes, and are best evaluated by specialists. Similarly, there are a number of environmental pollutants that could be present but not identified during an inspection, and particularly if a residence was built prior to 1978, but which could be revealed by a specialist. In addition, there are a host of contaminants, such as that from moisture penetrating carpet-covered cracks in floor slabs, as well as odors from household pets and cigarette smoke that can permeate walls, carpets, heating and air conditioning ducts, and other porous surfaces, and which can be difficult to eradicate. However, in as much as the sense of smell adjusts rapidly, and the sensitivity to such odors is not uniform, consumers are advised to make this determination for themselves, and particularly if they or a family member suffers from allergies or asthma.

The inspector IS required to report on:

  • The visible condition of doors, floors, walls, ceilings, windows, closets, and attached cabinetry.
  • The condition of stairs, handrails, and guardrails.
  • A representative sampling of windows and doors and their operation.

The inspector IS NOT required to report on:

  • Cosmetic imperfections or the wear-and-tear associated with time and use, pets, or lack of care.
  • Any area concealed or inaccessible due to rugs, carpets, furniture, tile, or similar items.
  • Quality of workmanship.
  • Curtains, window treatments, or wall hangings.
  • Computerized systems or controls.
  • Intercoms, audio or media systems.
  • Elevators, dumb-waiters, or other means of mechanical transport.
  • Low-voltage systems.
  • Security systems.
  • The possibility of moisture intrusion.
  • Indoor air quality, unless licensed and authorized to do so.
  • Systems that are designed to mitigate environmental contaminants.
  • Adequacy or quality of locks.

SLEEPING ROOMS

The threat of fire and carbon monoxide poisoning (the silent killer) is greatest when people are asleep. Unfortunately however, several proven methods of combating these threats are not mandated. For instance, arc-fault interrupters and hardwired smoke detectors have only recently been mandated for new construction, and carbon monoxide detectors are still not required in most jurisdictions. And although InterNACHI standards do not supersede local, regional, and national standards, consumers are urged to take whatever means necessary to safeguard themselves, including having these important devices installed and practicing an emergency evacuation of sleeping quarters, and particularly with children and the elderly.

The inspector IS required to report on:

  • The visible condition of doors, floors, walls, ceilings, windows, and closets.
  • The adequacy of light and ventilation.
  • The adequacy for an emergency exit and egress.
  • The adequate separation from a garage.
  • The presence or absence of smoke detectors.
  • The condition of doors, floors, walls, ceilings, and windows.

The inspector IS NOT required to report on:

  • Cosmetic imperfections or the wear-and-tear associated with time and use.
  • Sleeping quarters that fail to meet conditions 1 through 4, above.
  • The functionality of smoke and carbon-monoxide detectors.
  • Cosmetic imperfections or the wear-and-tear associated with time and usage.

KITCHEN

Kitchen appliances are tested for their functionality, and not for their performance or the variety of their settings and cycles, and only built-in appliances are tested, which does not include refrigerators. However, any appliance older than ten years is likely to exhibit decreased efficiency. Also, many older gas and electric ranges are not anchored and can be tipped, by a child climbing on an open oven door, for instance, and should therefore be confirmed to be secure and otherwise child-safe.

The inspector IS required to report on:

  • The condition of the floor, walls, ceiling, windows, and doors.
  • The functionality of built-in appliances, unless disclaimed.
  • Faucets and drains and report on their functional flow and draw.
  • The ground fault capacity of countertop outlets.
  • Confirm that island countertops are secure.
  • Building Supporters high performance standards include range anti-tip bracket installation.

The inspector IS NOT required to report on:

  • Cosmetic imperfections or the wear-and-tear associated with time and use.
  • Curtains, window treatments, or wall hangings.
  • Free-standing appliances.
  • Countertop or cabinetry lights, which are not built-in.
  • Dumb-waiters or similar mechanical devices.
  • The future performance of any appliance.
  • Countertop appliances.

BATHROOMS

A significant amount of accidents occur in bathrooms, usually due to wet and slippery floors, and less often because of hazardous conditions involving water and electricity. However, safety is a truly personal responsibility that consumers should accept not only for themselves but for dependant family members, such as children and the elderly. It is important, therefore, to follow all recommendations for safety upgrades.

The inspector IS required to report on:

  • The condition of the floor, walls, ceiling, windows, and doors.
  • Faucets and the drains in sinks, tubs, hydro-spas and showers.
  • Toilets and bidets, but not their shut-off valves.
  • The ground fault protection of counter top outlets.
  • The ground fault protection of hydro-spas.
  • The presence of impact glazing where appropriate.

The inspector IS NOT required to report on:

  • Flood-test showers or guarantee the integrity of shower pans.
  • The condition or effectiveness of the over-flow drains at tubs, sinks, or drain pans (water heater, washer, AC units, etc.).
  • Cosmetic deficiencies, mineral stains on enclosures, fixtures, etc.
  • Temperature regulating devices.
  • Steam showers and their components.
  • Saunas and their components.

LAUNDRY FACILITIES

Dryer vents have been responsible for many house fires, injuries, and even deaths. The best dryer vents are smooth-walled and rigid and extend no more than six feet to an exterior location. Water poses less of a threat, but washing machines should be installed over drain-pans plumbed to the exterior, and washing machine hoses should be a resilient braided stainless steel, as opposed to the older rubber type, and this is particularly important in locations where a leak or overflow could cause damage.

The inspector IS required to report on:

  • The condition of the floor, walls, ceiling, windows, doors, and cabinets.
  • The provision for hot and cold water.
  • Type of fuel for a dryer.
  • a gas dryer’s capacity to vent to the exterior or to an approved location.
  • Building Supporters High-Performance standards include checking readily-accessible dryer vents for exterior-only, immediate obstructions; excludes scoping. 

The inspector IS NOT required to report on:

  • Cosmetic imperfections or the wear-and-tear associated with time and use.
  • The functionality of the washer and dryer.
  • Life-expectancy of washer and dryer.

GARAGE

Many fires begin in attached garages and spread inside residences, due in large measure to the presence of volatile fluids and the flash-ignition of vapors. For these reasons, attached garages should have ventilation ports, firewalls, self-closing and fire-rated house entry doors, and ground fault protected outlets. On a different subject, moisture intrusion is common in garages. This typically appears as efflorescence (salt crystal formations) on slabs and the short stem walls surrounding slabs, which is activated by moisture. However, inasmuch as the majority of residential garages are built on-grade and are subject to moisture intrusion, this is be anticipated. It is essential, therefore, to monitor a garage during the rainy season and to keep storage items raised above the slab floor.

The inspector IS required to report on:

  • The condition of the slab, walls, windows, etc.
  • The generic type of garage door(s).
  • Hardware, and confirm that springs have safety cables.
  • Garage door openers and confirm their auto-reversing capacity.
  • presence of plaster firewalls in attached garages.
  • House entry doors and their fire-rating and self-closing capacity.
  • Confirm that wall outlets are ground fault protected.

The inspector IS NOT required to report on:

  • Areas that are obstructed, by vehicles, or storage items, etc.
  • The adequate accommodation for all vehicles.
  • Storage facilities added after the initial construction.
  • Common curing cracks in slabs, or salt-crystal formations [efflorescence].
  • Life-expectancy of garage door opener or garage door components.

POOLS & SPA [AN AUXILIARY SERVICE]

Pools and spas do leak, but this may be impossible to confirm without the use of specialized equipment. However, it could become apparent from secondary evidence during the inspection, which is purely visual. Regardless, the owner or the occupant of a property would be aware that the water level drops regularly and must be topped off, and this should be disclosed. Unusually high water bills could reveal this, but only a pressure test of the pipes, a dye test of cracks, or a geo-phone test of specific areas would confirm it, which is beyond InterNACHI standards and disclaimed as a function of the inspection. * Building Supporters offers an auxiliary service as an add-on service which includes leak detection testing, for an additional fee.

2.1. Limitations:

  • Inspectors are not required to inspect or perform any action not explicitly detailed in these Standards.
  • Inspectors are not required to come into direct contact with pool or spa water.
  • Inspectors are not required to enter the pool or spa.
  • Inspectors are not required to drain a pool or spa in order to inspect it.
  • A residential pool and spa inspection is not technically exhaustive.
  • A residential pool and spa inspection will not identify concealed or latent defects.
  • A residential pool and spa inspection will not deal with aesthetic concerns, or what could be deemed matters of taste, cosmetic defects, etc.
  • A residential pool and spa inspection does not include items not permanently installed.

2.2. Exclusions:

  1. The inspector is not required to determine:
  • the condition of any component or system that is not readily accessible.
  • the service life expectancy of any component or system.
  • the size, capacity, performance or efficiency of any component or system.
  • the cause or reason of any condition.
  • the cause for the need of correction, repair or replacement of any system or component.
  • future conditions.
  • compliance with codes or regulations.
  • the presence of evidence of rodents, birds, bats, animals, insects, or other pests.
  • the presence of mold, mildew or fungus.
  • the existence of environmental hazards.
  • the existence of electromagnetic fields.
  • any hazardous waste conditions.
  • any manufacturers’ recalls or conformance with manufacturer installation, or any information included for consumer protection purposes.
  • correction, replacement or repair cost estimates.
  • estimates of the cost to operate any given system.
  1. The inspector is not required to operate:
  • any system that is shut down.
  • any system that does not function properly.
  • any system that does not turn on with the use of normal operating controls.
  • any shut-off valves or manual stop valves.
  • any electrical disconnect or over-current protection devices.
  • any alarm systems.

III. The inspector is not required to:

  • perform any action that contradictions any laws or regulations.
  • activate any component of the pool or spa.
  • move any personal items or other obstructions, such as, but not limited to: furniture, equipment or debris.
  • dismantle, open or uncover any system or component.
  • enter or access any area that may, in the inspector’s opinion, be unsafe.
  • do anything that may, in the inspector’s opinion, be unsafe or dangerous to him/herself or others, or damage property, such as, but not limited to negotiating with pets.
  • inspect decorative items.
  • offer guarantees or warranties.
  • offer or perform any engineering services.
  • offer or perform any trade or professional service other than a pool and spa inspection.
  • research the history of the property, or report on its potential for alteration, modification, extendibility or suitability for a specific or proposed use for occupancy.
  • determine the age of construction or installation of any system, structure or component of a unit, or differentiate between original construction and subsequent additions, improvements, renovations or replacements.
  • determine the insurability of the property.
  1. Residential Pool and Spa Inspection
  2. The inspector shall inspect from ground level:
  • the plumbing;
  • the filters;
  • the lights;
  • any adjoining structure as it relates to the pool or spa;
  • the valves;
  • the solar heating system;
  • the pumps and motors;
  • the electrical system;
  • the filtration system;
  • the pool heater; and
  • the safety barriers.
  1. The inspector shall describe:
  • the type of swimming pool or spa;
  • details impacting the inspector’s ability to inspect the unit, including water clarity;
  • the condition of visible components or systems present in the unit;
  • the type of drain installed;
  • any readily accessible component with functional or material defects;
  • the type of filtration system; and
  • the types of safety barriers.

III. The inspector shall report as in need of correction:

  • observed indications of active pool or spa shell leaks;
  • damaged water line tiles;
  • damaged or faulty drain covers, pumps; heaters or filter housings;
  • inadequate drainage;
  • improper settlement of pool deck; and
  • any visibly unsafe or improper pool equipment, electrical connections, or bonding connections.

IIII. Additional exclusions:

• Pool body and decorative components such as tile, paint, and special coatings. • All underground piping and electrical, and leak detection of non-visible plumbing. • Chemical and water treatment systems, including the chemical conditions of the water in the pool/spa. • Sizing, adequacy and projections of life expectancy or future performance of any equipment, system, structure or component. • Determining compliance with installation guidelines, regulations, covenants, or other restrictions, including, local interpretations thereof, or the issuance of permits. • Adequacy of solar panels or the mounting thereof. • All Diving boards and/or slides. • Programming computerized control systems. • Manual operation of valves.

 

A Well Inspection

[AN AUXILIARY SERVICE]

is the visual inspection of the well components (well head, well head cap/seal, well pressure tank, attached plumbing, and the well pump electrical control systems), including a one-hour well pump flow test (although the flow test may be stopped if the well appears to be running dry), performed for a fee. The purpose of a Well Inspection is to discover marginally or low-producing wells or defective well pumps, and to discover and report defects that were visible at the well components.
The Well Inspection and pump flow test are based on the observations made on the date of the inspection, and not a prediction of future conditions. Tests are valid for the subject property on the date of inspection only. Yield, recovery rate, flow rate, static water level, and storage are dependent on the time of year, weather, soil permeability, and other variable conditions. THIS INSPECTION IS NOT A GUARANTEE OF A CONTINUOUS WATER SUPPLY OR THAT THE WELL WILL CONTINUE TO PRODUCE THE YIELD AS TESTED.
A Well Inspection will not reveal every issue that exists or ever could exist, but only those material defects observed on the date of the inspection.
A material defect is a specific issue with a system or component at a residential property that may have a significant, adverse impact on the value of the property, or that poses an unreasonable risk to people. The fact that a system or component is near, at, or beyond the end of its normal, useful life is not, in itself, a material defect.
A Well Inspection report shall identify, in written format, defects within the system and the components defined by these Standards that are both observed and deemed material by the inspector. The inspection report may include additional comments and recommendations. The Well Inspection report will also include the total gallons of water pumped during the well pump flow test and the average (GPM) rate of water flow during the test.
The Well Inspection report will outline and define the items that were inspected and indicate any items that were not inspected, the reason they were not inspected, and general statements of what is commonly included and excluded during the Well Inspection.
2 Limitations, Exceptions & Exclusions

2.1  Additional Limitations:
A Well Inspection is not technically exhaustive.
A Well Inspection will not identify concealed or latent defects.
This Standards of Practice applies to properties with a private residential water well.

2.2 Exclusions:
The inspector is not required to:
perform a multi-hour well pump flow test (although the inspector may offer a multi-hour pump flow test as an option).
measure the well’s static water levels (although the inspector may offer to measure the static water levels with a multi-hour well pump flow test if allowed by the homeowner and the local water/governing jurisdiction).
measure the depth of the well.
review or comment on any portion of the well driller’s log.
estimate the well recovery rate or water storage capabilities.
dig soil or snow to locate a well head or in-ground well room.
inspect any water treatment systems.
inspect any in-ground water storage/cistern systems.
measure the distance from the well head to the septic tank(s) or leach field(s).
remove the well pump or perform any repairs or maintenance.

measure the well pressure tank air pre-charge;

measure the well pump current draw during the pump flow test;
diagnose any well problems.
shock or super-chlorinate the well.
estimate the age or life expectancy of the well pump or any of the well’s components.
operate any well pump that, in the opinion of the inspector, is unsafe or likely to fail during the well pump flow test.
give correction, replacement, or repair cost estimates.
enter/access any area that may or do anything that may, in the inspector’s opinion, be unsafe or dangerous to him/herself or others, or damage property.
enter crawlspaces, well rooms, or other confined areas that may be unsafe or not readily accessible.
move any personal items or other obstructions, such as, but not limited to: throw rugs, carpeting, wall coverings, boxes, furniture, ceiling tiles, window coverings, equipment, plants, ice, debris, snow, or anything else that might restrict the Well Inspection.

3.0 Standards of Practice
3.1 Well Systems Inspection
The inspector will:
calculate the total gallons of water pumped during the well pump flow test;
calculate the average GPM flow during the well pump flow test;
visually inspect the condition of the well head and surrounding site conditions (if the well head cannot be located, this must be documented in the written report);
measure the height of the well head from grade;
visually inspect the condition of the well head cap or seal;
visually inspect the condition of the visible portions of the well casing;
note approximate location of well head in written report;
visually inspect the condition of the well pressure tank;
visually inspect the condition of the well pressure switch;
visually inspect for the presence of and condition of a well water pressure gauge;
inspect for the presence of and the rating of any installed well pump control panel;
inspect for the presence of a well pump disconnect panel or switch; and
inspect for the presence of a main water shutoff valve.
The inspector shall report as in need of correction:
any well that runs dry during the one-hour well pump flow test;
any well that fails to average at least 3 GPM flow during the well pump flow test;
any well pump whose current draw is higher than the rating listed on the well pump control panel;
any well pump whose current draw fluctuates more than 1 amp during the well pump flow test;
any waterlogged well pressure tank;
any corroded or leaking well pressure tank;
any well head cap/seal that is damaged, loose, or missing;
any well head that does not extend above grade by at least 12 inches; and
any burnt or corroded pints or contacts inside the well pressure switch.

Sewer Inspection

[AN AUXILIARY SERVICE]

 

1. Definitions and Scope

1.1.  A sewer scope inspection is a video inspection of the lateral sewer line (referred to by plumbing codes as the “building sewer”) from the house at or near the foundation to the municipality’s or HOA’s tap or septic tank, performed for a fee.  The purpose of a sewer scope is to discover and report defects that are visible in the lateral sewer line that are both observed and deemed material by the inspector, as defined by these Standards; the scope will typically also identify the material used for the lateral sewer line. The scope of work may be modified by the Client and Inspector prior to the inspection process.

1.2.  A material defect is a specific issue with a system or component of a residential property that may have a significant, adverse impact on the value of the property, or that poses an unreasonable risk to people.  The fact that a system or component is near, at, or beyond the end of its normal, useful life is not, in itself, a material defect.

1.3.  A sewer scope inspection report shall identify, in written format, defects within the system and components defined by these Standards that are both observed and deemed material by the inspector. Inspection reports may include additional comments and recommendations.

The sewer scope inspection report will outline and define the portions of the sewer line that were inspected and indicate any areas that were not inspected, the reason they were not inspected, and general statements of what is commonly included and excluded during the sewer scope inspection.
2. Limitations, Exceptions & Exclusions

2.1.  Limitations

  1. A sewer scope inspection is not technically exhaustive.
  2. A sewer scope inspection will not identify concealed or latent defects.
  3. This Standards of Practice applies to properties with four or fewer residential units.

 

2.2.   Exceptions

  1. The sewer scope inspection is based on the observations made on the date of the inspection, and not a prediction of future conditions.
  2. The sewer scope inspection will not reveal every issue that exists or ever could exist, but only those material defects observed on the date of the inspection.

2.3.  Exclusions

The inspector is not required to:

  1. remove or pull toilets to access the main or lateral sewer line.
  2. move any personal items or other obstructions, such as, but not limited to:  throw rugs, carpeting, wall coverings, boxes, furniture, ceiling tiles, window coverings, equipment, plants, ice, debris, snow, or anything else that might restrict the sewer scope inspection.
  3. climb a roof to access a sewer vent pipe if deemed unsafe by the inspector.
  4. enter or access any area or do anything that may, in the inspector’s opinion, be unsafe or dangerous to him/herself or others, or damage property.
  5. enter crawlspaces or other areas that may be unsafe or not readily accessible.
  6. locate and/or mark any defect observed in the sewer scope video.
  7. provide the length of the main or lateral sewer line to the municipality’s or HOA’s tap or septic tank.
  8. scope or inspect underfloor or in-house portions of the building drain or sewer system.
  9. give correction, replacement or repair cost estimates.

3. Standards of Practice

3.1. Sewer Scope Inspection

1. The sewer scope inspector will inspect and video-record:

  1. the main or exterior lateral sewer line from a proper cleanout or roof vent stack;
  2. record the entire video and provide the video to the client as either an online link or a physical copy;
  3. document any and all defects observed in the video inspection; and
  4. if a cleanout is not visible or accessible, the inspector will note that in the report.

2. When possible, the sewer scope inspector shall describe:

  1. the type of lateral sewer line or pipe materials. Description is not a material identification guarantee and generalized observation.

3. The inspector shall report as in need of correction:

  1. the presence of visible cracks;
  2. the presence of any observed plant or tree root intrusion;
  3. the presence of any offset over 1/2-inch;
  4. the presence of over 1 inch of standing water;
  5. the presence of a blockage or restriction;
  6. the presence of a crushed line or pipe;
  7. the presence of a broken line or pipe;
  8. the presence of a separated or disconnected line or pipe;
  9. the presence of excessive rust or scale;
  10. the presence of an excessive amount of grease;
  11. the presence of deteriorated concrete;
  12. the presence of an egg-shaped line;
  13. the presence of a collapsed line or pipe; and
  14. the presence of delamination or deterioration.

4. The inspector is not required to:

  1. identify the presence of Orangeburg or Bermico (bituminous fiber pipe).
  2. identify the presence of asbestos cement or Transite pipe.
  3. go beyond 200′ line distance or scope entire distance. Inspector has full discretion of length of scope and may cut sewer scope length short at any time, if numerous turns are encountered or line resistance occurs.

 

Mold

[AN AUXILIARY SERVICE]

Table of Contents
2.1 Scope
2.2 Complete Mold Inspection
2.3 Limited Mold Inspection
2.4 Standards of Practice
2.4.1 Roof
2.4.2 Exterior and Grounds
2.4.3 Basement, Foundation, Crawlspace and Structure
2.4.4 Heating, Cooling and Ventilation
2.4.5 Plumbing
2.4.6 Attic, Ventilation and Insulation
2.4.7 Interior
2.4.8 Moisture, Humidity and Temperature
2.5 IAC2 Mold Sampling Procedures
2.5.1 General Comments
2.5.2 Air-Flow Rate
2.5.3 Rotameter
2.5.4 Surface Sampling
2.5.5 Outdoor Air Sampling
2.5.6 Indoor Air Sampling
2.6 Limitations, Exceptions and Exclusions
2.7 Definitions
2.1 Scope

The purpose of this standard is to provide standardized procedures to be used for a mold inspection.
There are two types of mold inspections described in the IAC2 Mold Inspection Standards of Practice:
1) the Complete Mold Inspection (see Section 2.2); and
2) the Limited Mold Inspection (see Section 2.3).
2.1.1 Unless the inspector and client agree to a limitation of the inspection, the inspection will be
performed at the primary building and attached parking structure. Detached structures shall be
inspected separately.
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2.1.2 A mold inspection is valid for the date of the inspection and cannot predict future mold growth.
Because conditions conducive to mold growth in a building can vary greatly over time, the results
of a mold inspection (examination and sampling) can be relied upon only for the point in time at
which the inspection was conducted.
2.1.3 A mold inspection is not a home (property) inspection.
2.1.4 A mold inspection is not a comprehensive indoor air-quality inspection.
2.1.5 A mold inspection is not intended to eliminate the uncertainty or the risk of the presence of mold,
or the adverse effects mold may cause to a building or its occupants.
2.2 Complete Mold Inspection
I. The inspector shall perform:
• a non-invasive, visual examination of the readily accessible, visible and installed systems and
components of the building (listed in Section 2.4: Standards of Practice);
• moisture, temperature and humidity measurements (refer to Section 2.4.8: Moisture, Humidity and
Temperature); and
• mold samples according to the IAC2 Mold Sampling Procedures (refer to Section 2.5: IAC2
Mold Sampling Procedures).
II. The inspector shall report:
• moisture intrusion;
• water damage;
• musty odors;
• apparent mold growth;
• conditions conducive to mold growth;
• the results of a laboratory analysis of all mold samples taken at the building; and
• any system or components listed in Section 2.4: Standards of Practice that were not inspected, and
and the reasons they were not inspected.
2.3 Limited Mold Inspection
The Limited Mold Inspection does not include a visual examination of the entire building, but is limited to
a specific area of the building identified and described by the inspector. As a result, moisture intrusion,
water damage, musty odors, apparent mold growth, and/or conditions conducive to mold growth in other
areas of the building may not be inspected.
I. The inspector shall describe:
• the room or limited area of the building in which the Limited Mold Inspection is performed.
II. The inspector shall perform:
• a limited, non-invasive, visual examination of the readily accessible, visible and installed systems
and components located only in the room or limited area (as described in the previous section); and
• mold samples according to the IAC2 Mold Sampling Procedures (see Section 2.5 IAC2: Mold Sampling
Procedures).
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III. The inspector shall report:
• moisture intrusion;
• water damage;
• musty odors;
• apparent mold growth;
• conditions conducive to mold growth; and
• the results of a laboratory analysis of all mold samples taken at the building.
2.4 Standards of Practice
2.4.1 Roof
I. The inspector shall inspect from the ground level or eaves:
A. the roof covering;
B. the roof drainage system, including gutters and downspouts; and
C. the vents, flashings, skylights, chimneys, and any other roof penetrations.
II. The inspector is not required to:
A. walk on any roof surface;
B. predict the service-life expectancy; or
C. perform a water test.
2.4.2 Exterior and Grounds
I. The inspector shall inspect from the ground level:
A. the cladding, flashing and trim;
B. exterior doors, windows, decks, stoops, steps, stairs, porches, railings, eaves, soffits and fascias;
C. the exterior grading surrounding the building’s perimeter; and
D. items that penetrate the exterior siding or covering materials.
II. The inspector is not required to:
A. inspect underground drainage systems;
B. inspect window-well drainage; or
C. inspect defects not related to mold growth or moisture intrusion.
2.4.3 Basement, Foundation, Crawlspace and Structure
I. The inspector shall inspect:
A. the foundation, basement and/or crawlspace, including ventilation; and
B. for moisture intrusion.
II. The inspector is not required to:
A. operate sump pumps with inaccessible floats; or
B. inspect for structural defects not related to mold growth or moisture intrusion.
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2.4.4 Heating, Cooling and Ventilation
I. The inspector shall inspect:
A. the air handler, circulating fan and air filter;
B. the condensate pump;
C. readily visible ductwork;
D. a representative number of supply and return air registers;
E. the central humidifier; and
F. the central air-conditioning unit.
II. The inspector is not required to:
A. inspect the air-conditioning coil, if not readily accessible;
B. inspect the condensate pan, if not readily accessible;
C. test the performance or efficiency of the HVAC system; or
D. inspect the interior of the ductwork system.
2.4.5 Plumbing
I. The inspector shall inspect:
A. the readily visible main water line;
B. the readily visible water supply lines;
C. the readily visible drain, waste and vent pipes;
D. the hot water source; and
E. fixtures such as toilets, faucets, showers and tubs.
II. The inspector is not required to:
A. test the showers and tubs by filling them with water;
B. test whirlpool tubs, saunas, steam rooms or hot tubs; or
C. inspect for plumbing defects that are not related to mold growth or moisture intrusion.
2.4.6 Attic, Ventilation and Insulation
I. The inspector shall inspect:
A. the insulation;
B. ventilation of attic spaces; and
C. framing and sheathing.
II. The inspector is not required to:
A. move, touch or disturb insulation;
B. inspect for vapor retarders; or
C. break or otherwise damage the surface finish or weather seal on or around access panels
and covers.
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2.4.7 Interior
I. The inspector shall inspect:
A. the walls, ceilings, floors, doors and windows;
B. the ventilation in the kitchen, bathrooms and laundry; and
C. whole-house ventilation fans.
II. The inspector is not required to:
A. inspect for interior defects that are not related to mold growth or moisture intrusion.
2.4.8 Moisture, Humidity and Temperature
I. The inspector shall measure:
A. moisture of any room or area of the building that has moisture intrusion, water damage,
moldy odors, apparent mold growth, or conditions conducive to mold growth;
B. the humidity of any room or area of the building (at the inspector’s discretion); and
C. the temperature of any room or area of the building (at the inspector’s discretion).
2.5 IAC2 Mold Sampling Procedures
Table of Contents
2.5.1 General Comments
2.5.2 Air-Flow Rate
2.5.3 Rotameter
2.5.4 Surface Sampling
2.5.4.1 Area of Concern: Take One Sample
2.5.4.2 No Areas of Concern: Not Required
2.5.4.3 Swab
2.5.4.4 Tape
2.5.4.5 Carpet
2.5.5 Outdoor Air Sampling
2.5.5.1 Two Outdoor Samples
2.5.5.2 Upon Arrival
2.5.5.3 Weather
2.5.5.4 Location
2.5.6 Indoor Air Sampling
2.5.6.1 Closed-Building Conditions
2.5.6.2 HVAC
2.5.6.3 Indoor Air
2.5.6.4 Sampling

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2.5.1 General Comments
• Use the IAC2 Mold Sampling Decision Chart and the IAC2 Standards of Practice to assist in deciding
when and where to take samples in a building.
• Samples of the indoor air and the outside air should be taken for comparison. There should not be
any mold inside the house that is not found outside. The concentration of mold inside a home should
not be higher than the concentration of mold outside.
• Keep in mind that mold spores in the air being sampled can vary greatly in relation to the life cycle of
the mold, atmospheric and environmental conditions, and the amount of ventilation. There is
seasonal and diurnal variability in airborne mold at an indoor, residential environment.
• Air sampling may be necessary if the presence of mold is suspected (if, for example, musty odors
are noted) but cannot be identified by a visual examination. The purpose of such air sampling is
to determine the location and/or extent of mold contamination. All mold spores have a source, and
identifying the source is the goal.
• Because the outdoor sample is the control sample and is used to compare with the indoor sample,
the samples should be collected as close as possible in time and under similar conditions. Air
samples should be collected at the same air-flow rate, for the same duration of time, near the same
height above the floor in all rooms that are sampled indoors, and using the same type of collection
device.
2.5.2 Air-Flow Rate
• There are many different types of air pumps, measurement meters and spore collectors that can be
used for an air sample at a mold inspection. The air pump should be adjusted to collect air at a flow
rate that is recommended by the manufacturer of the collection device. The result of an air-pump
sample is recorded in spores per meter, cubed (spores/m3
).
• If the air-flow rate is too fast, the spores will bounce off the collector plate or slide and will not stick.
If the air-flow rate is too slow, the spores float around the collector plate or slide and will not stick.
2.5.3 Rotameter
• Rotameters are air-flow meters that provide field accuracy in an easy-to-read instrument. The
principle of operation is simple: air flow passes through a vertical, tapered tube and pushes a small
ball or float, having a diameter slightly less than the smaller end of the tube. As the little ball rises,
the clearance between the ball and the tube wall increases. The ball becomes stationary when the
diameter of the tube is large enough to allow the total air flow past the ball. The flow rate is
determined by reading the number on the tube at the middle position of the stabilized ball.
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2.5.4 Surface Sampling
• Surface sampling can provide information regarding whether the visible, apparent mold is, in fact,
actual microbial growth (mold) or not, can measure the relative degree of the mold contamination,
and can serve to confirm that the sampled mold growth may be producing mold spores in the air.
2.5.4.1 Area of Concern: Take One Sample
• If there is an area of concern (such as a room or area with moisture intrusion, water damage, musty
odors, apparent mold growth, or conditions conducive to mold growth), the inspector shall perform
at least one surface sample in each area of concern.
• Additional surface samples may be performed at the discretion of the inspector.
2.5.4.2 No Areas of Concern: Not Required
• If there are no areas of concern (no moisture intrusion, no water damage, no musty odors, no
apparent mold growth, and no conditions conducive to mold growth), the inspector is not required
to perform a surface sampling.
• Surface samples may be performed in other areas of the building at the discretion of the inspector.
2.5.4.3 Swab
• A swab comes inside a plastic tube container. The cellulose swab is moistened with a liquid
preservative stored in an ampoule at one end of the tube container. Any bacteria collected with
the swab are transferred via the swab into a tube. The tube is sent directly to a laboratory for
analysis.
• A swab provides immediate determination of the presence of fungal spores, as well as the types of
fungi present.
2.5.4.3.1 Areas of Concern
• The inspector shall take at least one swab sample when a visual examination of the building yields
moisture intrusion, water damage, apparent mold growth, musty odors, or conditions conducive to
mold growth. Additional sampling may be performed at the discretion of the inspector.

2.5.4.3.2 Sampling
• In general, an inspector will typically hold the tube container so that the ampoule with the
liquid preservative is at the top. Pinch the plastic tube so the liquid will flow down onto the
swab. To remove the moistened swab, pull on the cap. Rub and roll the wet swab over a
one-inch square area of the apparent mold growth. The swab should collect visible
apparent mold. Insert the swab back into the tube. Secure the cap.
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2.5.4.3.3 Each Sample
• A unique sample number should be recorded for each swab sample. Write the number on the tube
itself. The Chain-of-Custody document should have the sample number, location, and date and time
of the sampling.
2.5.4.3.4 Each Room
• Take a sampling in each room or area where there is visible, apparent mold.
2.5.4.3.5 Each Color
• If there is apparent mold growth of different colors in the room or area, take a sample of each
different-colored mold. The different colors may indicate different types of mold.
2.5.4.3.6 Each Substrate
• If mold is visible on different substrates or building materials, such as wood, drywall or wallpaper,
then a sample from each different material is recommended.
2.5.4.4 Tape
• A tape system provides a quick way to sample visible mold. A tape-lift system is the most common
surface-sampling technique. It can be used instead of a swab sampling. Many tape samples can
be collected in a short period of time. Samples that show hyphae fragments and reproductive
structures can provide proof of mold growth.
• One of the most popular tape sampling products is the Bio-Tape™ system. There are many
advantages of using tape-lift systems (such as Bio-Tape™) instead of using regular tape.
Bio-Tape™ is easier to handle, the tapes are individually numbered, it requires less laboratory
preparation time, and the slides are flexible and will not break.
• The sampling result is not quantitative. The presence of fungi can be confirmed, genera can be
identified, and possibly a semi-quantitative estimation of the amount of each genus can be
determined.
2.5.4.4.1 Sampling
The procedure to using a tape-lift system such as Bio-Tape™ is as follows:
• remove the slide from the mailer;
• record the sample number and all other identification information prior to taking the sample;
• peel off the protective liner from the slide to expose the adhesive;
• place the slide with the sticky side down onto the contaminated area being sampled;
• press down gently and make contact (excessive pressure is not necessary);
• lift the slide from the surface and place it back into the slide mailer. Do not replace the protective
liner;
• record all information on the Chain-of-Custody document, including property address, date, time and
sample number; and
• mail the sample to the laboratory.
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2.5.4.4.2 PPE
• Because there is direct contact with and disturbance of the contaminated area, PPE is recommended,
including gloves and a respirator rated at N-95 or higher.
2.5.4.4.3 Each Sample
• A unique sample number should be recorded for each tape sample. The Chain-of-Custody document
should have the sample number, location, and date and time of the tape sampling.
2.5.4.4.4 Each Room
• Take a tape sampling in each room or area where there is visible, apparent mold.
2.5.4.4.5 Each Color
• If there is apparent mold growth of different colors in the room or area, take a tape sample of
each sample of each different-colored mold. The different colors may indicate different types of mold.
2.5.4.4.6 Each Substrate
• If mold is visible on different substrates or building materials, such as wood, drywall or wallpaper,
then a tape sample from each different material is recommended.
2.5.4.5 Carpet
• A carpet tends to contain the history of any mold that has been growing in the building. The carpet
sampling is performed to reveal previous mold problems. A carpet sampling can also reveal
undetected mold growth that may have been covered over or cleaned up. Choose an area that is
not heavily walked upon — an area with little foot traffic. Do not sample under furniture.
• A household vacuum cleaner and a carpet-sampling cartridge are used to vacuum a small area of
the carpet. The cartridge should be inserted as deep into the pile of the carpet as possible. If a carpet
has not been cleaned thoroughly prior to a sampling, a carpet can easily hold evidence of a mold
problem in the house. Even after cleaning, there can be mold spores discovered deep in the carpet.
2.5.4.5.1 Set-Up
• Insert the nylon filter into the collector nozzle. It should snap into place. Attach the device to the
vacuum hose securely. An adapter may be needed. If the attachment is loose, use duct tape to
make a tight connection.
2.5.4.5.2 Sampling
• Choose a 6-foot by 3-foot sampling area in front of a sofa or large chair where occupants spend a
lot of time. Vacuum this area thoroughly. Next, select a 6-foot by 3-foot area in a bedroom
alongside a bed. Remove the filter and place it into the bag that came with the unit.
Mail it to the laboratory.
2.5.5 Outdoor Air Sampling
2.5.5.1 Two Outdoor Samples
• The inspector shall perform two outdoor samples of the highest-quality general air to be used as
control samples (or background samples). These samples are to be used for comparison with the
indoor sample(s).
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2.5.5.2 Upon Arrival
• The outdoor sampling should begin soon after arriving at the property, assuming that the weather
is clear and calm. It is better for an inspector to perform the outdoor sampling while the weather
is favorable than to wait. The outdoor conditions may change drastically during the examination
and sampling of the building’s interior.
2.5.5.3 Weather
• Air sampling should not be conducted during unusually severe storms or periods of unusually high
winds. Severe weather will affect the sampling and analysis results in several ways.
• First, a high wind will increase the variability of airborne mold-spore concentration because of
wind-induced differences in air pressure between the building’s interior and exterior. Second,
rapid changes in barometric pressure increase the chance of a large difference in the interior and
exterior air pressures, consequently changing the rate of airborne mold spores being sucked into
the building. Weather predictions available on local news stations can provide sufficient information
to determine if these conditions are likely.
2. 5.5.3.1 Clear and Calm
• On a Chain-of-Custody form, the weather conditions shall be recorded. The weather conditions should
be clear and calm. High winds may affect the quality of the sampling, including the comparison
between indoor and outdoor samplings.
2.5.5.3.2 No Rain
• An air-pump sampling should not take place outdoors if it is raining. If possible, wait at least two
hours after the rain has stopped before taking an air-pump sample. Alterations or adjustments to the
normal procedure or locations of taking air-pump samples, particularly for the control sample, must
be recorded in a Chain-of-Custody form.
2.5.5.3.3 Above Freezing
• An air-pump sampling should not take place when the outdoor air temperature is below 32° F. All
air sampling should take place when the air temperature is above freezing.
2.5.5.3.4 No Snow Covering
• If the ground is completely covered with snow, outdoor air-pump sampling should not be performed.
A partial covering or a light dusting of snow is acceptable.
2.5.5.3.5 Ten Minutes
• On a clear, windless day, air-pump sampling should run for 10 minutes. (Be sure to refer to the
manufacturer’s recommendation.) When the outdoor air is not clear and windless, then the time of
the sampling should be reduced to five minutes or less. A breeze, the mowing of grass, nearby
construction, and dusty air can all affect the sampling conditions.

~ 19 ~
2.5.5.4 Location
• If possible, one outdoor sample should be located on the windward side of the building (the side facing
the point from which the wind blows), and the other should be located on the leeward-side of the
building (the side sheltered from the wind).
• The sampling device located on the windward side of the building should be positioned so as to face
the wind directly. The sampling device should point toward the wind, in the direction of the point
from which the wind is blowing. The sampling device should be 3 to 6 feet from the ground surface
(breathable space).
• Typically, the device should be about 10 feet away from the front entry door. The idea is to have both
outdoor samples located in areas where the devices will collect a representative sampling of the air
that may enter the building through the entry door or nearby open windows (the openings on the
sides of the building).
2.5.5.4.1 Ten Feet
• If there is a main ventilation component of the building that draws fresh air into the building from
the outdoors, the sampling should be performed 10 feet from that intake.
• The sampling should be performed at least 10 feet from the most frequently used entrance to the
home.
• The air sampling devices should be kept at least 10 feet away from all openings, air intakes, registers,
exhaust vents, vent pipes, ventilation fans, etc.
2.5.5.4.2 Nothing Overhead
• Sampling should not be performed under an overhang, soffit or eave, or carport, porch roof, or any
other roof or overhead structure.

2.5.6 Indoor Air Sampling
2.5.6.1 Closed-Building Conditions
• Indoor air sampling should be made under closed-building conditions. Closed-building conditions are
necessary in order to stabilize the air that may contain mold spores or mVOCs, and to increase the
reproducibility of the air sampling and measurement.
• Windows on all levels, as well as external doors, should be kept closed (except during normal entry
and exit) during the sampling period. Normal entry and exit include a brief opening and closing of
a door, but–to the extent possible–external doors should not be left open for more than a few
minutes.
• In addition, external-internal air exchange systems (other than a furnace), such as high-volume,
whole-house and window fans should not be operating. However, attic fans intended to control
attic (and not whole-building) temperature and humidity should continue to operate. Combustion
or make-up air supplies must not be closed.
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• Normal operation of permanently installed energy-recovery ventilators (also known as heat-recovery
ventilators or air-to-air heat exchangers) may also continue during closed-building conditions. In
houses where permanent radon mitigation systems have been installed, these systems should be
functioning during the air-sampling period.
• Closed-building conditions will generally exist as normal living conditions in northern areas of the
country when the average daily temperature is low enough so that windows are kept closed.
Depending on the geographical area, this can be the period from late fall to early spring.
2.5.6.2 HVAC
2.5.6.2.1 Take One Air Sample
• At least one air sample shall be taken at an air-supply register of the HVAC system. It is preferred to
sample prior and during the operation of the HVAC system. If only one sampling can be performed,
then the sampling should be taken 15 minutes after the HVAC system is turned on.
• Ideally, there would be at least three sampling devices similarly situated throughout the building, but
financial or time constraints may limit the number of samples that can be taken.
2.5.6.2.2 Location
• The air sample should be taken 3 to 5 feet from an air-supply register, with the sampling device
oriented so that air from the supply register directly enters the sampling device.
2.5.6.2.3 Agitation
• A gentle or vigorous mechanical agitation of the ductwork (a bump or shake) is appropriate.
2.5.6.3 Indoor Air
2.5.6.3.1 Take One Air Sample
• The inspector shall perform at least one indoor sampling. Additional samplings may be performed at
the discretion of the inspector.
2.5.6.3.2 Areas of Concern
• At least one air sample shall be taken near the center of each room or area of the building in which
there are areas of concern (moisture intrusion, water damage, musty odors, visible, apparent mold
growth, and/or conditions conducive to mold growth).
2.5.6.3.3 No Areas of Concern
• At least one indoor air sample shall be taken in the most lived-in common room, such as the family
room or living room. (The location shall be determined at the discretion of the inspector.)
2.5.6.3.4 Location
• An indoor air sampling should only take place in a livable space in the building. Sampling in areas
such as closets, under-floor crawlspaces, unfinished attics, storage or utility rooms, or inside the
HVAC system is prohibited.
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• The indoor air sample should be taken in the middle or center area of the area or room.
• The air collection device should be placed about 3 to 6 feet above the floor’s surface.
2.5.6.3.5 Ten Minutes
• Inside the building, the air-pump sampling should run for 10 minutes. If there is a lot of indoor
activity, then the air-pump sampling should be reduced to five minutes. If there is an active source
of dust, such as construction or cleaning, then the air sampling time should be reduced to one minute.
Be sure to follow the recommendations of the manufacturer of the sampling device or collector.
2.5.6.4 Sampling
• The sampling equipment must be protected, clean and properly maintained at all times. The sampling
device shall be clean and free from dirt or debris prior to starting a sampling. If re-usable collection
devices are used, then they shall be handled and cleaned prior to use, in accordance with the
manufacturer’s recommendation. The collector may be re-useable and have sticky slides already
prepared, or the collector may be a one-time-use, self-contained device.
• Slides, cassettes, and one-time-use devices should be stored in cool, dry environments. The slides
must be protected from direct sunlight. Sampling devices (slides, swabs, cassettes, tapes) older than
one year should not be used.
• Set the air collector at a normal breathing height, which is about 3 to 6 feet above ground level or the
floor’s surface. A tripod is typically used to set the collector’s height.
• Calibrate the flow of the pump. Do not attach the sampling device, cassette or collector on the tubing
yet. Measure the flow rate of the pump with a rotameter that has been calibrated to a standard.
Make sure that the flow rate is set to the manufacturer’s recommendation. For example, an Air-O-Cell
cassette flow rate is 15 liters of air per minute. The pump should be calibrated regularly (once a
day). A record of calibrations should be kept in a work ledger or log book.
• After calibration, securely attach the tubing of the pump to the sampling device or collector. Turn on
the pump. Start sampling. Record the start time.
• After turning on the air pump, check the air-flow rate. The flow rate should not vary. A flow change
greater than 5% requires a new air sample to be taken. All air samples must have the same volume.
A digital time controller on the equipment is highly recommended.
• Examine the collector. There should not be an overload on the slide. There should be a fine trace,
hardly visible to the human eye, of dust and spores on the slide. A slide that has an easily visible
trace on it may be unreadable. If that is the case, the environmental conditions may need
improvement or a new sampling location may be needed. If a slide is heavy, a new sample should
be taken.
• Remember, all air samples must have the same volume. Refer to the manufacturer’s
recommendations about sampling time and volume for each type of sampling device.
• Record the time that the pump stopped. Mark the sampling device with a unique sampling number.
Record that information on the Chain-of-Custody form.
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• Place slides in a protective carrying case, or close the collector if a cassette is used. A new sample
must be taken if a slide is accidentally touched, smeared or contaminated because it will be
unreadable.
• Calculate the volume by multiplying the liters of air pumped by the number of minutes. An example
of the calculation is 20 liters of air pump multiplied by 10 minutes equals 20 liters per minute or
200 liters (20L x 10 minutes = 200 L).
2.6 Limitations and Exclusions
2.6.1 Limitations
I. These Standards of Practice apply only to residential buildings with four or fewer dwelling units.
II. The mold inspection is not a warranty, guarantee or insurance policy.
III. The mold inspection is not technically exhaustive.
IV. The mold inspection will not identify concealed or latent conditions or defects.
V. The mold inspection will not identify mold growth not readily visible at the time of the inspection.
VI. The scope of a mold inspection does not include future conditions or events.
VII. The scope of a mold inspection does not include hidden mold growth or future mold growth.
2.6.2 Exclusions:
I. The inspector is not required to report:
A. the condition of any system or component that is not readily accessible;
B. the condition of any system or component that is not in the IAC2 Standards of Practice;
C. the service-life expectancy of any system or component;
D. the size, capacity, BTU, performance or efficiency of any component or system;
E. compliance with codes, regulations or installation guidelines; or
F. the presence of evidence of rodents, animals, insects, wood-destroying insects and/or pests.
II. The inspector is not required to:
A. determine the presence of hidden mold by physical examination or sampling;
B. report replacement or repair cost estimates;
C. lift carpeting or padding;
D. inspect any other environmental issue;
E. determine the cause or reason of any condition;
F. perform a geotechnical, structural or geological evaluation;
G. move any personal items or other obstructions to the inspection, such as, but not limited to:
insulation, throw rugs, furniture, floor or wall coverings, ceiling tiles, window coverings, equipment,
plants, ice, debris, snow, water, dirt, foliage and/or appliances;
H. dismantle, open or uncover any system or component;
I. enter or access any area, crawlspace or attic space which, in the opinion of the inspector, may be
unsafe or may pose a risk to personal safety;
J. do anything that may be unsafe or dangerous to the inspector or others, or potentially damage
property, according to the opinion of the inspector; or
K. determine the insurability of a property.
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II. The inspector is not required to operate:
A. any system that is shut down;
B. any system that does not function properly;
C. any system that does not turn on with the use of normal operating controls;
D. any shut-off water or fuel valves, or manual stop valves;
E. any electrical disconnect or over-current protection devices; or
F. any irrigation or sprinkler systems.
2.7 Definitions
• accessible: can be approached or entered by the inspector safely, without difficulty, fear or danger.
• apparent mold: visible growth with characteristics of mold which cannot be confirmed by the inspector
without the benefit of sampling. The term ―mold growth‖ is interchangeable in this guide with ―fungal
growth‖ and ―microbial growth.‖
• area of concern: a room or area with moisture intrusion, water damage, musty odors, visible,
apparent mold growth, and/or conditions conducive to mold growth.
• complete: comprehensive in scope or purpose.
• component(s): a permanently installed or attached fixture, element or part of a system.
• condition(s): the visible and conspicuous state of being of an object.
• dismantle: to open, take apart or remove any component, device or piece that would not typically be
opened, taken apart or removed by an ordinary occupant.
• due diligence: the degree of care and caution required by the circumstances of a person.
• dwelling unit: a complete place to live, which includes a kitchen and a bathroom.
• household appliances: kitchen and laundry appliances, room air conditioners, and similar appliances.
• inspect: to visually look at readily accessible systems and components safely, using normal operating
controls, and accessing readily accessible panels and areas in accordance, with these Standards of
Practice.
• inspector: one who performs an inspection.
• interior: the area(s) of a building where people have access and which are included in the space of the
building.
• invasive: to probe, dismantle or take apart a system or component.
• limited: not comprehensive in scope or purpose.
• microbial: describes a microscopic organism, such as mold.
• normal operating controls: devices such as thermostats that would be operated by ordinary
occupants, and which require no specialized skill or knowledge.
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• occupants: tenants, persons, or entities, each of whom uses a portion of the building.
• readily accessible: an item or component is readily accessible if, in the judgment of the inspector,
it is capable of being safely observed without movement of obstacles, detachment or disengagement
of connecting or securing devices, or other unsafe or difficult procedures to gain access.
• report: a written communication (possibly including digital images) of conditions seen during the
inspection.
• representative number: at least one in a particular room or area.
• sampling: the collection of air, surface and/or carpet samples for analysis.
• shut down: turned off, unplugged, inactive, not in service, not operational, etc.
• system(s): an assembly of various components that function as a whole.
• technically exhaustive: a comprehensive and detailed examination beyond the scope of a mold
inspection which would involve or include, but would not be limited to: dismantling, specialized
knowledge or training, special equipment, measurements, calculations, testing, research, analysis,
or other means.
• unsafe: a condition in a readily accessible, installed system or component, which is judged to be a
significant risk of personal injury during normal, day-to-day use. The risk may be due to damage,
deterioration, improper installation, or a change in accepted residential construction standards.

 

 

 

 

 

 

 

 

 

Glossary of Terms

  • accessible:  In the opinion of the inspector, can be approached or entered safely, without difficulty, fear or danger.
  • activate:  To turn on, supply power, or enable systems, equipment or devices to become active by normal operating controls. Examples include turning on the gas or water supply valves to the fixtures and appliances, and activating electrical breakers or fuses.
  • adversely affect:  To constitute, or potentially constitute, a negative or destructive impact.
  • alarm system:  Warning devices, installed or freestanding, including, but not limited to: carbon monoxide detectors, flue gas and other spillage detectors, security equipment, ejector pumps, and smoke alarms.
  • appliance:  A household device operated by the use of electricity or gas. Not included in this definition are components covered under central heating, central cooling or plumbing.
  • architectural service:  Any practice involving the art and science of building design for construction of any structure or grouping of structures, and the use of space within and surrounding the structures or the design, design development, preparation of construction contract documents, and administration of the construction contract.
  • component:  A permanently installed or attached fixture, element or part of a system.
  • condition:  The visible and conspicuous state of being of an object.
  • correction:  Something that is substituted or proposed for what is incorrect, deficient, unsafe, or a defect.
  • cosmetic defect:  An irregularity or imperfection in something, which could be corrected, but is not required.
  • crawlspace:  The area within the confines of the foundation and between the ground and the underside of the lowest floor’s structural component.
  • decorative:  Ornamental; not required for the operation of essential systems or components of a home.
  • describe:  To report in writing a system or component by its type or other observed characteristics in order to distinguish it from other components used for the same purpose.
  • determine:  To arrive at an opinion or conclusion pursuant to examination.
  • dismantle:  To open, take apart or remove any component, device or piece that would not typically be opened, taken apart or removed by an ordinary occupant.
  • engineering service:  Any professional service or creative work requiring engineering education, training and experience, and the application of special knowledge of the mathematical, physical and engineering sciences to such professional service or creative work as consultation, investigation, evaluation, planning, design and supervision of construction for the purpose of assuring compliance with the specifications and design, in conjunction with structures, buildings, machines, equipment, works and/or processes.
  • enter:  To go into an area to observe visible components.
  • evaluate:  To assess the systems, structures and/or components of a property.
  • evidence:  That which tends to prove or disprove something; something that makes plain or clear; grounds for belief; proof.
  • examine:  To visually look (see inspect).
  • foundation:  The base upon which the structure or wall rests, usually masonry, concrete or stone, and generally partially underground.
  • function:  The action for which an item, component or system is specially fitted or used, or for which an item, component or system exists; to be in action or perform a task.
  • functional:  Performing, or able to perform, a function.
  • functional defect:  A lack of or an abnormality in something that is necessary for normal and proper functioning and operation, and, therefore, requires further evaluation and correction.
  • general home inspection:  See “home inspection.”
  • home inspection:  The process by which an inspector visually examines the readily accessible systems and components of a home and operates those systems and components utilizing this Standards of Practice as a guideline.
  • household appliances:  Kitchen and laundry appliances, room air conditioners, and similar appliances.
  • identify:  To notice and report.
  • indication:  That which serves to point out, show, or make known the present existence of something under certain conditions.
  • inspect:  To examine readily accessible systems and components safely, using normal operating controls, and accessing readily accessible areas, in accordance with this Standards of Practice.
  • inspected property:  The readily accessible areas of the home, house, or building, and the components and systems included in the inspection.
  • inspection report:  A written communication (possibly including images) of any material defects observed during the inspection.
  • inspector:  One who performs a real estate inspection.
  • installed:  Attached or connected such that the installed item requires a tool for removal.
  • material defect:  A specific issue with a system or component of a residential property that may have a significant, adverse impact on the value of the property, or that poses an unreasonable risk to people.  The fact that a system or component is near, at, or beyond the end of its normal, useful life is not, in itself, a material defect.
  • normal operating controls:  Describes the method by which certain devices (such as thermostats) can be operated by ordinary occupants, as they require no specialized skill or knowledge.
  • observe:  To visually notice.
  • operate:  To cause systems to function or turn on with normal operating controls.
  • readily accessible:  A system or component that, in the judgment of the inspector, is capable of being safely observed without the removal of obstacles, detachment or disengagement of connecting or securing devices, or other unsafe or difficult procedures to gain access.
  • recreational facilities:  Spas, saunas, steam baths, swimming pools, tennis courts, playground equipment, and other exercise, entertainment and athletic facilities.
  • report (verb form): To express, communicate or provide information in writing; give a written account of.  (See also inspection report.)
  • representative number:  A number sufficient to serve as a typical or characteristic example of the item(s) inspected.
  • residential property:  Four or fewer residential units.
  • residential unit:  A home; a single unit providing complete and independent living facilities for one or more persons, including permanent provisions for living, sleeping, eating, cooking and sanitation.
  • safety glazing:  Tempered glass, laminated glass, or rigid plastic.
  • shut down:  Turned off, unplugged, inactive, not in service, not operational, etc.
  • structural component:  A component that supports non-variable forces or weights (dead loads) and variable forces or weights (live loads).
  • system:  An assembly of various components which function as a whole.
  • technically exhaustive:  A comprehensive and detailed examination beyond the scope of a real estate home inspection that would involve or include, but would not be limited to:  dismantling, specialized knowledge or training, special equipment, measurements, calculations, testing, research, analysis, or other means.
  • unsafe:  In the inspector’s opinion, a condition of an area, system, component or procedure that is judged to be a significant risk of injury during normal, day-to-day use. The risk may be due to damage, deterioration, improper installation, or a change in accepted residential construction standards.
  • verify:  To confirm or substantiate.

 

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