Roofing Practice Exam Questions and Answers
Study online at https://quizlet.com/_hgvu08
1. Roof surface area: A building has 1,900 square feet of roof surface to be covered
using three (3) plies of 15 pound felt.
2. Felt rolls required: Felt is furnished in 4 square rolls of 432 ft².
3. Shingles to be purchased: A roof measures 60 feet by 30 feet eave to eave. The
height of the gable is 5 feet.
4. Ladder side rails extension: The ladder side rails shall extend at least 3' above
the roof or upper landing surface.
5. Fasteners per shingle: The minimum number of fasteners per individual shingle
is 2.
6. Copper thickness: Sixteen-ounce copper has an approximate thickness of
.0216.
7. Hot asphalt application: Hot asphalt shall be applied in a quantity of not less
than 25 pounds plus or minus 15% per roofing square per ply.
8. T-lock shingle installation: When completing a T-lock shingle reroof, install the
shingles 1/2 inch lower than the old shingles.
9. Cricket or backer flashing: Cricket or backer flashing generally is limited to
penetrations that are 24 inches wide.
10. Vapor retarder recommendation: The use of a vapor retarder is recommended
when temperatures are expected to be below 40 degrees pF for the average tempe
ature during the coldest month.
11. Minimum slope for asphalt shingles: Asphalt shingles may be used as a roof
covering on roofs with a minimum slope of 2:12.
12. Shingle extension in closed-cut valley: Application of shingles in a closed-cut
valley requires shingles to extend at least 12 inches beyond the valley centerline.
13. Minimum distance from penetration to valley center: A minimum distance of
18 inches is recommended between a penetration and valley center.
14. Hazardous waste cleanup duration: If hazardous waste cleanup and removal
operations at any site take longer than 6 months to complete, the employer must
provide showers and changing rooms for employees exposed to such conditions.
15. Roof slope: A roof 76 feet long, 152 feet wide has a ridgeline perpendicular to
the 76-foot side. The height of the ridge is 19 inches above the roof edge. The slope
of the roof is 1/4 in 12.
16. Minimum slope for metal shingles in HVHZ areas: The minimum slope for
metal shingles in HVHZ areas is 4:12.
17. Cold-applied bitumen application rate: Cold-applied bitumen should be ap-
plied at a rate of 3 gallons per square.
18. Metal counterflashing installation: When metal counterflashing is used at
wall, the reglet is inset into a raggle.
, Roofing Practice Exam Questions and Answers
Study online at https://quizlet.com/_hgvu08
19. Minimum end laps for wood shingles: Valleys for wood shingles shall be open
or closed and minimum end laps shall be 12 inches and fully adhered with approved
flashing cement.
20. Proper slope for drainage: The criterion for judging proper slope for drainage
is that there be no ponding water on the roof 48 hours after a rain during conditions
conducive to drying.
21. Minimum distance for asphalt shingles above transition: For steep-to
low-slope transitions, it is recommended that asphalt shingles be held back a
minimum of 10 inches above the transition.
22. Spacing of wood shingles: The proper spacing of wood shingles when in-
stalled on non-continuous 1 x 4 sheathing is that boards are spaced on center a
distance equal to the shingle exposure.
23. Maximum length of gutter: The maximum length of gutter between ends is 50
feet.
24. Waterproofing materials beneath slabs: Bentonite is appropriate for use be-
neath slabs below grade where an appropriate substrate is in place before the
installation of the waterproofing membrane.
25. Concrete testing time: The standard time for testing and evaluating concrete's
compressive strength and its dryness or suitability to be covered by a roofing system
is 28 days.
26. Scaffold load capacity: The components of a scaffold loaded with 500 pounds
shall be capable of supporting its own weight and a load of at least 1 ton without
failure.
27. Protection course of PVC membrane: When applying the protection course of
PVC membrane avoid all evidence of moisture.
28. Re-coat need for SPF system: A re-coat may be needed for an SPF system if
the thin coat becomes slightly translucent, extensive physical damage, or damage
caused by hail, wind, or hurricane.
29. Damage caused by hail, wind, or hurricane: All of the above is the correct
answer
30. Battens: Required on roof slopes of 7 in 12 and greater.
31. Total length of eve for Rob's house: More than 342 feet.
32. Base flashing cost: $2.83 per lineal foot.
Study online at https://quizlet.com/_hgvu08
1. Roof surface area: A building has 1,900 square feet of roof surface to be covered
using three (3) plies of 15 pound felt.
2. Felt rolls required: Felt is furnished in 4 square rolls of 432 ft².
3. Shingles to be purchased: A roof measures 60 feet by 30 feet eave to eave. The
height of the gable is 5 feet.
4. Ladder side rails extension: The ladder side rails shall extend at least 3' above
the roof or upper landing surface.
5. Fasteners per shingle: The minimum number of fasteners per individual shingle
is 2.
6. Copper thickness: Sixteen-ounce copper has an approximate thickness of
.0216.
7. Hot asphalt application: Hot asphalt shall be applied in a quantity of not less
than 25 pounds plus or minus 15% per roofing square per ply.
8. T-lock shingle installation: When completing a T-lock shingle reroof, install the
shingles 1/2 inch lower than the old shingles.
9. Cricket or backer flashing: Cricket or backer flashing generally is limited to
penetrations that are 24 inches wide.
10. Vapor retarder recommendation: The use of a vapor retarder is recommended
when temperatures are expected to be below 40 degrees pF for the average tempe
ature during the coldest month.
11. Minimum slope for asphalt shingles: Asphalt shingles may be used as a roof
covering on roofs with a minimum slope of 2:12.
12. Shingle extension in closed-cut valley: Application of shingles in a closed-cut
valley requires shingles to extend at least 12 inches beyond the valley centerline.
13. Minimum distance from penetration to valley center: A minimum distance of
18 inches is recommended between a penetration and valley center.
14. Hazardous waste cleanup duration: If hazardous waste cleanup and removal
operations at any site take longer than 6 months to complete, the employer must
provide showers and changing rooms for employees exposed to such conditions.
15. Roof slope: A roof 76 feet long, 152 feet wide has a ridgeline perpendicular to
the 76-foot side. The height of the ridge is 19 inches above the roof edge. The slope
of the roof is 1/4 in 12.
16. Minimum slope for metal shingles in HVHZ areas: The minimum slope for
metal shingles in HVHZ areas is 4:12.
17. Cold-applied bitumen application rate: Cold-applied bitumen should be ap-
plied at a rate of 3 gallons per square.
18. Metal counterflashing installation: When metal counterflashing is used at
wall, the reglet is inset into a raggle.
, Roofing Practice Exam Questions and Answers
Study online at https://quizlet.com/_hgvu08
19. Minimum end laps for wood shingles: Valleys for wood shingles shall be open
or closed and minimum end laps shall be 12 inches and fully adhered with approved
flashing cement.
20. Proper slope for drainage: The criterion for judging proper slope for drainage
is that there be no ponding water on the roof 48 hours after a rain during conditions
conducive to drying.
21. Minimum distance for asphalt shingles above transition: For steep-to
low-slope transitions, it is recommended that asphalt shingles be held back a
minimum of 10 inches above the transition.
22. Spacing of wood shingles: The proper spacing of wood shingles when in-
stalled on non-continuous 1 x 4 sheathing is that boards are spaced on center a
distance equal to the shingle exposure.
23. Maximum length of gutter: The maximum length of gutter between ends is 50
feet.
24. Waterproofing materials beneath slabs: Bentonite is appropriate for use be-
neath slabs below grade where an appropriate substrate is in place before the
installation of the waterproofing membrane.
25. Concrete testing time: The standard time for testing and evaluating concrete's
compressive strength and its dryness or suitability to be covered by a roofing system
is 28 days.
26. Scaffold load capacity: The components of a scaffold loaded with 500 pounds
shall be capable of supporting its own weight and a load of at least 1 ton without
failure.
27. Protection course of PVC membrane: When applying the protection course of
PVC membrane avoid all evidence of moisture.
28. Re-coat need for SPF system: A re-coat may be needed for an SPF system if
the thin coat becomes slightly translucent, extensive physical damage, or damage
caused by hail, wind, or hurricane.
29. Damage caused by hail, wind, or hurricane: All of the above is the correct
answer
30. Battens: Required on roof slopes of 7 in 12 and greater.
31. Total length of eve for Rob's house: More than 342 feet.
32. Base flashing cost: $2.83 per lineal foot.
