AHIT Home Inspection Exam Questions and Answers

AHIT Home Inspection Exam Questions and Answers 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 -Correct Answer-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 -Correct Answer-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 -Correct Answer-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 -Correct Answer-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 -Correct Answer-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 -Correct Answer-C. roll roofing The material having the shortest life expectancy is __________. A. concrete B. roll roofing C. fiber cement D. slate E. wood -Correct Answer-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 -Correct Answer-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 -Correct Answer-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 -Correct Answer-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 -Correct Answer-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