AHIT Home Inspection Flashcards
The purpose of gravel on a built-up tar-and-gravel roof is __________.
A. to prevent delamination of the plys
B. to protect the membrane from ultraviolet rays
C. to provide ballast to help hold down the roof membrane
D. all of these reasons - ANS-D. all of these reasons
A roof that has a problem with ponding generally still has water on it at least ____ hours after it
has rained.
A. 12
B. 2
C. 24
D. 48 - ANS-D. 48
The purpose of a cant strip is to __________.
A. prevent the roof membrane from cracking at a change in direction
B. provide a curb on which to set a skylight
C. replace a reglet as the counter-flashing
D. seal the top of a parapet counter-flashing - ANS-A. Prevent the roof membrane from cracking
at a change in direction
All of the following are common problems with built-up roofing except ___________.
A. alligatoring
B. blistering
C. oil-canning
D. ridging - ANS-C. oil-canning
A 4-in-12 slope can be expressed as the ratio of _____.
A. 1/4
B. 12:4
C. 4:12
D. 6:2:4 - ANS-C. 4:12
A low slope can lead to problems with all of the following types of roof-covering materials,
except ___________.
,A. asphalt shingles
B. fiber-cement shingles
C. roll roofing
D. wood shakes
E. wood shingles - ANS-C. roll roofing
The material having the shortest life expectancy is __________.
A. concrete
B. roll roofing
C. fiber cement
D. slate
E. wood - ANS-B. roll roofing
Ice dams typically form on roofs with ____________.
A. a low slope and small overhang
B. a low slope and wide overhang
C. a steep slope and small overhang
D. a steep slope and wide overhang
E. asphalt shingles - ANS-B. a low slope and wide overhang
The minimum slope for asphalt shingles in a conventional roofing application is ______.
A. 2:12
B. 4:12
C. 5:12
D. 6:12 - ANS-A. 2:12
Common failure modes for asphalt shingles include all of the following, except __________.
A. cracking blisters
B. cupping or clawing
C. loss of granules
D. spalling - ANS-D. spalling
A four-year-old asphalt shingle roof that appears well-insulated, with an attic that is properly
ventilated, but having roughly 25% of the shingles showing irregular cracks in the surface
should be reported as ____________.
A. a common cosmetic condition that does not affect performance or life expectancy
B. being the result of excessive foot traffic on the roof
C. being the result of expansion and contraction of the waferboard sheathing due to changes in
humidity
, D. freeze-thaw damage
E. possibly having manufacturing defects and a shortened life expectancy - ANS-E. possibly
having manufacturing defects and a shortened life expectancy
There may be leakage at a chimney protruding through roll roofing valley flashing because the
___________.
A. chimney height may be insufficient
B. chimney will obstruct proper drainage
C. nails from the chimney flashing have penetrated the valley flashing
D. roofer may not have cut the points at the valley
E. roofer used roll roofing rather than metal flashing - ANS-B. chimney will obstruct proper
drainage
Foundation walls ____________.
A. must resist lateral pressure from the basement's sides
B. should be totally underground
C. support the structure and connect to the footing
D. vary inversely in thickness based on underground depth - ANS-C. support the structure and
connect to the footing
Wall cracks develop because __________.
A. of all of these reasons
B. the wall has been overloaded
C. the wall has heaved
D. the wall has settled - ANS-A. of all of these reasons
A foundation wall penetration should ____________.
A. be repaired with re-pointing cement
B. be reported if signs of leakage exist, as this may cause the wall to crack
C. never be below grade
D. never be below the frost line - ANS-B. be reported if signs of leakage exist, as this may
cause the wall to crack
A header is _____________.
A. a fall from scaffolding by a construction worker
B. a full-length joist that is doubled to carry additional load
C. an extra joist added to support additional loads
D. used to transfer span loads over or around openings - ANS-D. used to transfer span loads
over or around openings
The purpose of gravel on a built-up tar-and-gravel roof is __________.
A. to prevent delamination of the plys
B. to protect the membrane from ultraviolet rays
C. to provide ballast to help hold down the roof membrane
D. all of these reasons - ANS-D. all of these reasons
A roof that has a problem with ponding generally still has water on it at least ____ hours after it
has rained.
A. 12
B. 2
C. 24
D. 48 - ANS-D. 48
The purpose of a cant strip is to __________.
A. prevent the roof membrane from cracking at a change in direction
B. provide a curb on which to set a skylight
C. replace a reglet as the counter-flashing
D. seal the top of a parapet counter-flashing - ANS-A. Prevent the roof membrane from cracking
at a change in direction
All of the following are common problems with built-up roofing except ___________.
A. alligatoring
B. blistering
C. oil-canning
D. ridging - ANS-C. oil-canning
A 4-in-12 slope can be expressed as the ratio of _____.
A. 1/4
B. 12:4
C. 4:12
D. 6:2:4 - ANS-C. 4:12
A low slope can lead to problems with all of the following types of roof-covering materials,
except ___________.
,A. asphalt shingles
B. fiber-cement shingles
C. roll roofing
D. wood shakes
E. wood shingles - ANS-C. roll roofing
The material having the shortest life expectancy is __________.
A. concrete
B. roll roofing
C. fiber cement
D. slate
E. wood - ANS-B. roll roofing
Ice dams typically form on roofs with ____________.
A. a low slope and small overhang
B. a low slope and wide overhang
C. a steep slope and small overhang
D. a steep slope and wide overhang
E. asphalt shingles - ANS-B. a low slope and wide overhang
The minimum slope for asphalt shingles in a conventional roofing application is ______.
A. 2:12
B. 4:12
C. 5:12
D. 6:12 - ANS-A. 2:12
Common failure modes for asphalt shingles include all of the following, except __________.
A. cracking blisters
B. cupping or clawing
C. loss of granules
D. spalling - ANS-D. spalling
A four-year-old asphalt shingle roof that appears well-insulated, with an attic that is properly
ventilated, but having roughly 25% of the shingles showing irregular cracks in the surface
should be reported as ____________.
A. a common cosmetic condition that does not affect performance or life expectancy
B. being the result of excessive foot traffic on the roof
C. being the result of expansion and contraction of the waferboard sheathing due to changes in
humidity
, D. freeze-thaw damage
E. possibly having manufacturing defects and a shortened life expectancy - ANS-E. possibly
having manufacturing defects and a shortened life expectancy
There may be leakage at a chimney protruding through roll roofing valley flashing because the
___________.
A. chimney height may be insufficient
B. chimney will obstruct proper drainage
C. nails from the chimney flashing have penetrated the valley flashing
D. roofer may not have cut the points at the valley
E. roofer used roll roofing rather than metal flashing - ANS-B. chimney will obstruct proper
drainage
Foundation walls ____________.
A. must resist lateral pressure from the basement's sides
B. should be totally underground
C. support the structure and connect to the footing
D. vary inversely in thickness based on underground depth - ANS-C. support the structure and
connect to the footing
Wall cracks develop because __________.
A. of all of these reasons
B. the wall has been overloaded
C. the wall has heaved
D. the wall has settled - ANS-A. of all of these reasons
A foundation wall penetration should ____________.
A. be repaired with re-pointing cement
B. be reported if signs of leakage exist, as this may cause the wall to crack
C. never be below grade
D. never be below the frost line - ANS-B. be reported if signs of leakage exist, as this may
cause the wall to crack
A header is _____________.
A. a fall from scaffolding by a construction worker
B. a full-length joist that is doubled to carry additional load
C. an extra joist added to support additional loads
D. used to transfer span loads over or around openings - ANS-D. used to transfer span loads
over or around openings
