ROOFING EVALUATION TEST QUESTIONS AND
ANSWERS SURE A+
✔✔There is a chimney protruding through a roll roofing valley flashing on the roof. Why
should you report that there may be leakage here?
a. The chimney height is insufficient
b. The chimney obstructs valley drainage
c. The nails from the chimney flashing penetrate the valley flashing.
d. The roofer did not cut the points at the valley
e. The roofer used roll roofing rather than metal. - ✔✔b. The chimney obstructs valley
draining.
✔✔Flashing is typically located at:
a. Valleys
b. Roof penetrations
c. Intersections with other materials
d. All of the above - ✔✔d. All of the above
✔✔The purpose of gravel on a built up tar and gravel roof is to:
a. Provide ballast to help hold the roof membrane down
b. Prevent delamination of the plies
c. Protect the membrane from ultra violet light
2 answers needed - ✔✔a. Provide ballast help hold the roof membrane down
c. Protect the membrane from ultra violet light
✔✔Slate:
a. Is a natural product
, b. Is a manufactured product
c. Lasts longer than asphalt shingles
d. Does not last as long as wood
2 answers needed - ✔✔a. Is a natural product
c. Lasts longer than asphalt shingles
✔✔Where SPF # 2 ceiling joists create an uninhabitable attic without storage and are
spaced 24 inches on center, what is the maximum allowable span when 2 inch by 6 inch
members are used? - ✔✔14 feet 9 inches
✔✔A roof system is subjected to a 50 psf ground snow load and creates a dead load of
20 psf. The ceiling is not attached to the rafters. Assuming that rafter ties are provided
at the top plate line, what is the maximum span of 2 inch by 8 inch Hem-Fir # rafters
spaced at 24 inches on center? - ✔✔9 feet 9 inches
✔✔An opening in a roof system may be framed with a single header and single trimmed
joists provided the header joist is located a maximum of ___ feet from the trimmed joist
bearing. - ✔✔3 feet
✔✔Where 15/32 inch wood structural panels having a span rating of 32/16 are used as
roof sheathing, what is the maximum span without edge support? - ✔✔28 inches
✔✔In the attachment of asphalt shingles, special methods of fastening are required
where the minimum roof slope of ___ units vertical in ____units horizontal is exceeded.
- ✔✔20 units vertical
12 units horizontal
✔✔Where No. 2 wood shingles of naturally durable wood are installed on a roof having
a 5:12 pitch, the maximum weather exposure for 16 inch shingles shall be ___ inches. -
✔✔4 inches
✔✔For preservative taper sawed shakes installed on a roof, the spacing between the
wood shakes shall be a minimum of ____ inch and a maximum of ___ inch. - ✔✔1/4
inch minimum
3/8 inch maximum
✔✔For1a wood shake roof system, sheet metal roof valley flashing shall extend a
minimum of ___ inches from the center line of the valley in each direction. - ✔✔11
inches
ANSWERS SURE A+
✔✔There is a chimney protruding through a roll roofing valley flashing on the roof. Why
should you report that there may be leakage here?
a. The chimney height is insufficient
b. The chimney obstructs valley drainage
c. The nails from the chimney flashing penetrate the valley flashing.
d. The roofer did not cut the points at the valley
e. The roofer used roll roofing rather than metal. - ✔✔b. The chimney obstructs valley
draining.
✔✔Flashing is typically located at:
a. Valleys
b. Roof penetrations
c. Intersections with other materials
d. All of the above - ✔✔d. All of the above
✔✔The purpose of gravel on a built up tar and gravel roof is to:
a. Provide ballast to help hold the roof membrane down
b. Prevent delamination of the plies
c. Protect the membrane from ultra violet light
2 answers needed - ✔✔a. Provide ballast help hold the roof membrane down
c. Protect the membrane from ultra violet light
✔✔Slate:
a. Is a natural product
, b. Is a manufactured product
c. Lasts longer than asphalt shingles
d. Does not last as long as wood
2 answers needed - ✔✔a. Is a natural product
c. Lasts longer than asphalt shingles
✔✔Where SPF # 2 ceiling joists create an uninhabitable attic without storage and are
spaced 24 inches on center, what is the maximum allowable span when 2 inch by 6 inch
members are used? - ✔✔14 feet 9 inches
✔✔A roof system is subjected to a 50 psf ground snow load and creates a dead load of
20 psf. The ceiling is not attached to the rafters. Assuming that rafter ties are provided
at the top plate line, what is the maximum span of 2 inch by 8 inch Hem-Fir # rafters
spaced at 24 inches on center? - ✔✔9 feet 9 inches
✔✔An opening in a roof system may be framed with a single header and single trimmed
joists provided the header joist is located a maximum of ___ feet from the trimmed joist
bearing. - ✔✔3 feet
✔✔Where 15/32 inch wood structural panels having a span rating of 32/16 are used as
roof sheathing, what is the maximum span without edge support? - ✔✔28 inches
✔✔In the attachment of asphalt shingles, special methods of fastening are required
where the minimum roof slope of ___ units vertical in ____units horizontal is exceeded.
- ✔✔20 units vertical
12 units horizontal
✔✔Where No. 2 wood shingles of naturally durable wood are installed on a roof having
a 5:12 pitch, the maximum weather exposure for 16 inch shingles shall be ___ inches. -
✔✔4 inches
✔✔For preservative taper sawed shakes installed on a roof, the spacing between the
wood shakes shall be a minimum of ____ inch and a maximum of ___ inch. - ✔✔1/4
inch minimum
3/8 inch maximum
✔✔For1a wood shake roof system, sheet metal roof valley flashing shall extend a
minimum of ___ inches from the center line of the valley in each direction. - ✔✔11
inches
