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ASHI Standards of Practice
Version 00 5/25/99 As approved by ASHI
Membership 7/99, effective 1 January 2000
©1999 American Society of Home Inspectors
Note: Definitions of italicized words can found in the Glossary at
the end of this document. |

1. INTRODUCTION
1.1 The American Society
of Home Inspectors®, Inc. (ASHI®) is a not-for-profit professional
society established in 1976. Membership in ASHI is voluntary and its
members include private, fee-paid home inspectors. ASHI's
objectives include promotion of excellence within the profession and
continual improvement of its members' inspection services to the public.
2. PURPOSE AND SCOPE
2.1 The purpose of these
Standards of Practice is to establish a minimum and uniform standard for
private, fee-paid home inspectors who are members of the American
Society of Home Inspectors. Home Inspections
performed to these Standards of Practice are intended to provide the
client with information regarding the condition of the systems
and components of the home as inspected at the time of the
Home Inspection.
2.2 The Inspector shall:
A. inspect:
- readily
accessible systems and components of
homes listed in these Standards of Practice.
- installed
systems and components of homes listed in these Standards
of Practice.
B.
report:
- on those systems
and components inspected which, in the professional opinion
of the inspector, are significantly deficient
or are near the end of their service lives.
- A reason why, if not
self-evident, the system or component is
significantly deficient or near the end of its service life.
- the inspector's
recommendations to correct or monitor the reported deficiency.
- on any systems
and components designated for inspection in these Standards
of Practice which were present at the time of the Home
Inspection but were not inspected and the reason they were
not inspected.
2.3 These Standards of Practice are not intended to limit
inspectors from:
A. including other
inspection services, systems or components in addition to
those required by these Standards of Practice.
B. specifying
repairs, provided the inspector is appropriately qualified and
willing to do so.
C. excluding
systems and components from the inspection if requested by
the client.
3. STRUCTURAL COMPONENTS
3.1 The inspector shall:
A. inspect:
- the
structural components including foundation and framing.
- by probing a
representative number of structural components
where deterioration is suspected or where clear indications of
possible deterioration exist. Probing is NOT required when probing
would damage any finished surface or where no deterioration is
visible.
- describe:
- the foundation and
report the methods used to inspect the
under-floor crawl space.
- the floor
structure.
- the wall structure.
- the ceiling
structure.
- the roof structure
and report the methods used to inspect the attic.
3.2 The inspector is NOT required to:
A. provide any
engineering service or architectural service.
B. offer an
opinion as to the adequacy of any structural system or
component.
4. EXTERIOR
4.1 The inspector shall:
A. inspect:
- the exterior wall
covering, flashing and trim.
- all exterior doors.
- attached decks,
balconies, stoops, steps, porches, and their associated railings.
- the eaves, soffits,
and fascias where accessible from the ground level.
- the vegetation,
grading, surface drainage, and retaining walls on the property
when any of these are likely to adversely affect the building.
- walkways, patios,
and driveways leading to dwelling entrances.
- describe the
exterior wall covering.
4.2 The inspector is NOT required to:
A.
inspect:
- screening,
shutters, awnings, and similar seasonal accessories.
- fences.
- Geological,
geotechnical, or hydrological conditions.
- recreational
facilities.
- outbuildings.
- seawalls,
break-walls, and docks.
- erosion control and
earth stabilization measures.
5. ROOF SYSTEM
5.1 The inspector shall:
A. inspect:
- the roof covering.
- the roof
drainage systems.
- the flashings.
- the skylights,
chimneys, and roof penetrations.
- describe the
roof covering and report the methods used to inspect the
roof.
5.2 The inspector is NOT required to:
A. inspect:
- antennae.
- interiors of flues
or chimneys which are not readily accessible.
- other
installed accessories.
6. PLUMBING SYSTEM
6.1 The inspector shall:
A. inspect:
- the interior water
supply and distribution systems including all fixtures and
faucets.
- the drain, waste
and vent systems including all fixtures.
- the water heating
equipment
- the vent systems,
flues, and chimneys.
- the fuel storage
and fuel distribution systems.
- the drainage sumps,
sump pumps, and related piping.
- describe:
- the water supply,
drain, waste, and vent piping materials.
- the water heating
equipment including the energy source.
- the location of
main water and main fuel shut-off valves.
6.2 The inspector is NOT required to:
A. inspect:
- the clothes washing
machine connections.
- the interiors of
flues or chimneys which are not readily accessible.
- wells, well pumps,
or water storage related equipment.
- water conditioning
systems.
- solar water heating
systems.
- fire and lawn
sprinkler systems.
- private waste
disposal systems.
- determine:
- whether water
supply and waste disposal systems are public or private.
- the quantity or
quality of the water supply.
- operate safety
valves or shut off valves.
7. ELECTRICAL SYSTEM
7.1 The inspector shall:
A. inspect:
- the service drop.
- the service
entrance conductors, cables, and raceways.
- the service
equipment and main disconnects.
- the service
grounding.
- the interior
components of service panels and sub panels.
- the conductors.
- the overcurrent
protection devices.
- a
representative number of installed lighting
fixtures, switches, and receptacles.
- the ground fault
circuit interrupters.
- describe:
- the amperage and
voltage rating of the service
- the location of
main disconnect(s) and sub panels
- the wiring
methods
- report:
- on the presence of
solid conductor aluminum branch circuit wiring
- on the absence of
smoke detectors
7.2 The inspector is NOT required to:
A. inspect:
- the remote control
devices unless the device is the only control device.
- the alarm
systems and components.
- the low voltage
wiring, systems and components.
- the ancillary
wiring, systems and components not a part of the
primary electrical power distribution system.
- measure amperage,
voltage, or impedance.
8. HEATING SYSTEM
8.1 The inspector shall:
A. inspect:
- the installed
heating equipment.
- the vent systems,
flues, and chimneys.
- describe
- the energy source.
- the heating method
by its distinguishing characteristics.
8.2 The inspector is NOT required to:
A. inspect:
- the interiors of
flues or chimneys which are not readily accessible.
- the heat exchanger.
- the humidifier or
dehumidifier.
- the electronic air
filter.
- the solar space
heating system.
- determine heat supply
adequacy or distribution balance.
9. AIR CONDITIONING SYSTEMS
9.1 The inspector shall:
A. inspect
the installed central and through-wall cooling equipment.
B. describe:
- the energy source.
- the cooling method
by its distinguishing characteristics.
9.2 The inspector is NOT required to:
A. inspect
electronic air filters.
B. determine cooling
supply adequacy or distribution balance.
10. INTERIOR
10.1 The inspector shall:
A. inspect:
- the walls,
ceilings, and floors.
- the steps,
stairways, and railings.
- the countertops and
a representative number of installed cabinets.
- a
representative number of doors and windows.
- garage doors and
garage door operators.
10.2 The inspector is NOT required to:
A. inspect:
- the paint,
wallpaper, and other finish treatments.
- the carpeting.
- the window
treatments.
- the central vacuum
systems.
- the household
appliances.
- recreational
facilities.
11. INSULATION & VENTILATION
11.1 The inspector shall:
A. inspect:
- the insulation and
vapor retarders in unfinished spaces.
- the ventilation of
attics and foundation areas.
- the mechanical
ventilation systems.
- describe:
- the insulation and
vapor retarders in unfinished spaces.
- the absence of
insulation in unfinished spaces at conditioned surfaces.
11.2 The inspector is NOT required to:
A. disturb insulation or
vapor retarders.
B. determine indoor
air quality.
12. FIREPLACES AND SOLID FUEL BURNING APPLIANCES
12.1 The inspector shall:
A. inspect :
- the system
components.
- the vent systems,
flues, and chimneys.
- describe:
- the fireplaces and
solid fuel burning appliances.
- the chimneys.
12.2 The inspector is NOT required to:
A. inspect:
- the interiors of
flues or chimneys.
- the firescreens and
doors.
- the seals and
gaskets.
- the automatic fuel
feed devices.
- the mantles and
fireplace surrounds.
- the combustion
make-up air devices.
- the heat
distribution assists whether gravity controlled or fan assisted.
- ignite or extinguish
fires.
- determine draft
characteristics.
- move fireplace inserts
or stoves or firebox contents.
13. GENERAL LIMITATIONS AND EXCLUSIONS
13.1 General limitations:
A. Inspections performed
in accordance with these Standards of Practice
- are not
technically exhaustive.
- will not identify
concealed conditions or latent defects
- These Standards of
Practice are applicable to buildings with four or fewer dwelling units
and their garages or carports.
13.2 General exclusions:
A. The inspector
is not required to perform any action or make any determination unless
specifically stated in these Standards of Practice, except as may be
required by lawful authority.
B. Inspectors are NOT required to determine:
- the condition of
systems or components which are not
readily accessible.
- the remaining life
of any system or component.
- the strength,
adequacy, effectiveness, or efficiency of any system or
component.
- the causes of any
condition or deficiency.
- the methods,
materials, or costs of corrections.
- future conditions
including, but not limited to, failure of systems and
components.
- the suitability of
the property for any specialized use.
- compliance with
regulatory requirements (codes, regulations, laws, ordinances,
etc.).
- the market value of
the property or its marketability.
- the advisability of
the purchase of the property.
- the presence of
potentially hazardous plants or animals including, but not limited
to wood destroying organisms or diseases harmful to humans.
- the presence of any
environmental hazards including, but not limited to toxins,
carcinogens, noise, and contaminants in soil, water, and air.
- the effectiveness
of any system installed or methods utilized to control or
remove suspected hazardous substances.
- the operating costs
of systems or components.
- the acoustical
properties of any system or component.
- Inspectors are
NOT required to offer:
- or perform any act
or service contrary to law.
- or perform
engineering services.
- or perform work in
any trade or any professional service other than home
inspection.
- warranties or
guarantees of any kind.
- Inspectors are
NOT required to operate:
- any system
or component which is shut down or otherwise
inoperable.
- any system
or component which does not respond to normal
operating controls.
- shut-off valves.
- Inspectors are
NOT required to enter:
- any area which
will, in the opinion of the inspector, likely be dangerous
to the inspector or other persons or damage the property or
its systems or components.
- the
under-floor crawl spaces or attics which do not conform to
recognized standards for clearance.
- Inspectors are
NOT required to inspect:
- underground items
including, but not limited to underground storage tanks or other
underground indications of their presence, whether abandoned or
active.
- systems or
components which are not installed.
- decorative
items.
- systems or
components located in areas which are not entered in
accordance with these Standards of Practice.
- detached structures
other than garages and carports.
- common elements or
common areas in multi-unit housing, such as condominium properties
or cooperative housing.
- Inspectors are
NOT required to:
- perform any
procedure or operation which will, in the opinion of the
inspector, likely be dangerous to the inspector or
other persons or damage the property or its systems or
components.
- move suspended
ceiling tiles, personal property, furniture, equipment, plants,
soil, snow, ice, or debris.
- dismantle
any system or component, except as explicitly
required by these Standards of Practice.
GLOSSARY of ITALICIZED WORDS*
Alarm Systems
Warning devices,
installed or free-standing, including but not limited to;
carbon monoxide detectors, flue gas and other spillage detectors,
security equipment, ejector pumps and smoke alarms
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 for construction, including but
not specifically limited to, schematic design, design development,
preparation of construction contract documents, and administration of
the construction contract
Automatic Safety Controls
Devices designed and
installed to protect systems and components
from unsafe conditions
Component
A part of a
system
Decorative
Ornamental; not
required for the proper operation of the essential systems
and components of a home
Describe
To report a
system or component by its type or other
observed, significant characteristics to distinguish it from other
systems or components
Dismantle
To take apart or
remove any component, device or piece of equipment that
would not be taken apart or removed by a homeowner in the course of
normal and routine home owner maintenance
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 or processes
Further Evaluation
Examination and
analysis by a qualified professional, tradesman or service technician
beyond that provided by the home inspection
Home Inspection
The process by which
an inspector visually examines the readily accessible systems
and components of a home and which describes
those systems and components in accordance
with these Standards of Practice
Household Appliances
Kitchen, laundry, and
similar appliances, whether installed or free-standing
Inspect
To examine
readily accessible systems and components
of a building in accordance with these Standards of Practice,
using normal operating controls and opening readily
openable access panels
Inspector
A person hired to
examine any system or component of a building in
accordance with these Standards of Practice
Installed
Attached such that
removal requires tools
Normal Operating Controls
Devices such as
thermostats, switches or valves intended to be operated by the homeowner
Readily Accessible
Available for visual
inspection without requiring moving of personal property,
dismantling, destructive measures, or any action which will
likely involve risk to persons or property
Readily Openable Access Panel
A panel provided for
homeowner inspection and maintenance that is within normal reach, can be
removed by one person, and is not sealed in place
Recreational Facilities
Spas, saunas, steam baths, swimming pools, exercise, entertainment,
athletic, playground or other similar equipment and associated
accessories
Report
To communicate in
writing
Representative Number
One component
per room for multiple similar interior components such as windows
and electric outlets; one component on each side of the building
for multiple similar exterior components
Roof Drainage Systems
Components
used to carry water off a roof and away from a building
Significantly deficient
unsafe
or not functioning
Shut Down
A state in which a
system or component cannot be operated by normal operating
controls
Solid Fuel Burning Appliances
A hearth and fire
chamber or similar prepared place in which a fire may be built and which
is built in conjunction with a chimney; or a listed assembly of a fire
chamber, its chimney and related factory-made parts designed for unit
assembly without requiring field construction
Structural Component
A component
which supports non-variable forces or weights (dead loads) and variable
forces or weights (live loads)
System
A combination of
interacting or interdependent components, assembled to
carry out one or more functions
Technically Exhaustive
An investigation that
involves dismantling, the extensive use of advanced techniques,
measurements, instruments, testing, calculations, or other means
Under-floor Crawl Space
The area within the
confines of the foundation and between the ground and the underside of
the floor
Unsafe
A condition in a
readily accessible, installed component or system 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.
Wiring Methods
Identification of
electrical conductors or wires by their general type, such as
"non-metallic sheathed cable" ("Romex"), "armored cable" ("bx") or "knob
and tube," etc.
*Note: In these Standards of Practice, redundancy in the description of
the requirements, limitations and exclusions regarding the scope of the
Home Inspection is provided for clarity.
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