Roofing Flashcards
1 – What is the most common way to ventilate a hip valley roof?
Openings in soffit under eaves
2 – You can safely heat Type II asphalt to what maximum temperature?
475 degrees
3 – Where would you find the most common leak on a wood shingle roof?
Where joints or splits line up in three adjacent courses
What would be the advantage of repairing asphalt shingles in warm weather?
1 – Roofing cement spreads easier
2 – Asphalt shingles are more pliable
3 – Less likely to damage shingles
4 – Both 2 and 3
5 – Which of the below would be the proper way of reinstalling a slate roof tile?
Insert the new slate under the two overlying courses and nail in place
6 – Who does the fire rating on asphalt shingles?
UL
Which is proper way of repairing asphalt shingle that is leaking?
Install galvanized sheet metal beneath the shingle in a bed of roofing cement
8 – When applying underlayment on a roof using drip edge, which of the below would be correct?
Underlayment over the drip edge at eaves and under the drip edge at rakes
9 – What is the minimum thickness of galvanized metal / steel roofing?
.013 inch
10 – What is the weather exposure of an 18 inch, No. 2 grade wood shingle on a 6:12 pitch roof?
4.5 inches
11 – Leaks around vent flashing usually occur because of (the question might have been worded what is true)
Improper shingling around flashing
12 – Ice barrier / dam protection can be:
Two layers of underlayment cemented together
13 – The weight of a coated vapor retarder for a BUR (built-up roof) is usually between ___and ___ pounds per square. (100 square feet).
45 and 80 pounds per square
14 – The side lap or offset for wood shingles or shakes should be ____.
1 ½ inches
15 – If the exposure for three-tab asphalt shingles is 5 inches, what is the head lap?
2 inches
16 – The purpose for underlayment for sloping roofs does not include which of the following.
1 – It protect roof sheathing before the roof covering is applied
2 – It acts as added weather protection for the building
3 – It serves as a vapor barrier
4 – It protects the shingles from any resin from the wood sheathing
17 – The roof slope factor (roof pitch multiplier) for a 5:12 roof is:
1.08
18 – A properly installed aggregate-surfaced BUR (built-up roof) system has a life expectancy of:
20 years
19 – Asphalt shingles require about _____pounds of nails per square.
2.5 pounds
20 – The underlayment for asphalt shingles should have an end lap of:
4 inches
21 – The purpose of surface aggregate for BUR (built-up roof) system is all of the following except:
1 – It protects the roof system
2 – It serves as ballast
3 – It reduces the roof surface temperature
4* – It causes the roof to sag
22 – How many nails are typically required for a three-tab asphalt shingle?
4
23 – Where are the nails on an asphalt shingle ridge cap placed?
1 inch from edge and 5 ½ inches from end
24 – How do you seal the seams of the underlayment on a BUR (built up roof)?
Hot mop it
25 – When using roll roofing, the starter strip should be nailed so that it overhangs the edge by ____inches.
1/4 inches
26 – One square of 235 # shingles will cover ____square feet and weigh ____ pounds.
100 square feet and 235 pounds
27 – When determining the number of layers of roofing felt needed for a built up roof (BUR), you always use 1 layer per ply.
True
28 – When nailing on shingles for a closed valley, nails can not be closer than ____to the centerline.
6 inches
29 – On a roof area, what is the raised area around the up side of a chimney called?
1 – Cricket
2 – Saddle
3 – Valley
4 – Both 1 and 2
30 – On an asphalt roof (shingle) eave drip edges shall extend .25 of an inch below the sheathing and extend back up the roof sheathing a minimum of 2 inches. They shall be fastened:
12 inches on center
31 – What is the minimum slope that is allowed for an asphalt shingle?
2/12
32 – Asphalt shingles from slopes 2/12 to slope 4/12 require __layers of underlayment felt (tarpaper).
2
33 – Fasteners for asphalt shingles shall be a minimum 12 gauge for shank and 3/8 inch for the head and shall have a penetration of 3/4” into roof sheathing.
True
34 – For open valleys (valley lining exposed) lined with metal, the valley lining shall be at least___ wide.
24 inches
35 – For closed valleys (valley’s covered by shingles) the smooth roll roofing shall be at least ___wide.
36 inches
36 – Drip edges shall extend _____below the roof sheathing and ____back up the roof.
¼ inch and 2 inches
37 – Metal roof shingles shall not be installed below this roof slope.
3/12
38 – Mineral surfaced roll roofing shall not be applied on a roof with a slope below:
1/12
39 – Slate shingles shall only be used on roofs with a slope of___or greater
4/12
40 – Built up roofs (BUR) shall a minimum design slope of____for drainage.
1/4 / 12
41 – Coal tar built up roofs (BUR) shall have a minimum design slope of:
1/8 / 12
42 – What is the correct procedure for repairing asphalt shingles? This question is like # 7 (leaking shingle) but worded different with a different answer.
Lift shingle and cement underneath
43 – When installing a concrete tile roof, which number of galvanized sheet gage is required for the valley flashing?
26
44 – The valley flashing for concrete roof tiles shall extend____inches from the centerline each way.
11 inches
45 – How many gallons of asphalt are required for 1 square (100 square feet) of BUR
(Built up roof) when roof slope is 4:12?
3
46 – Which of the below is not a proper method for fastening asphalt shingles?
Roofing nail with a 14 gage shank
47 – Open valleys of asphalt shingles lined with 2 plies of mineral surfaces roll roofing shall be permitted in lieu of a metal lining. The bottom layer shall be___inches and the top layer shall be ___inches.
18 inches and 36 inches
48 – Roll roofing is lapped ___ with a 17 inch exposure.
19 inches
49 – What is the most common reason for leaks around plumbing vents in an asphalt shingle roof?
Improper shingling around the flashing
50 – How far should nails penetrate through asphalt shingles?
Through shingles plus 3/4 inch
51 – How do you attach drip edge at the eaves?
Under the underlayment
52 – What is the minimum size sheathing board used for wood shingles?
1 x 4 equal to the weather exposure and coincide with the placement of fasteners
53 – What is the exposure of taper sawn wood shakes that are 18 inches long of No.1 grade?
7.5 inches
54 – Why is it best to repair asphalt shingles in the summer?
The new material is more pliable
55 – In your opinion, how can a customer maintain their asphalt shingle roof?
Keep brush and debris off roof
56 – What is considered a high slope roof?
4/12 and greater
57– Where is the least likely place to develop a leak on a metal roof?
In the field of the roof
58 – Asphalt emulsion is used for surfacing bitumen on a less than 4/12 roof, what is the approximate rate for surface emulsion in gallons per square (100 square foot)?
3.0 gallons
59 – What is the total width of the valley flashing for concrete roof tiles?
22 inches
60 – Where is the most likely place an asphalt shingle roof will leak?
– In the field of the roof
61 – What is true about asphalt shingle repair?
In spot repair you can use cement and sprinkle on loose granules
62 – You can install battens on roof slopes of 2 ½ in 12 and steeper, but they are required on slopes of ____or steeper.
7 in 12
63 – When insulating roof rafters, what is the minimum air space needed for ventilation?
1 inch
64 – What is the most important reason to install a vapor barrier?
Prevent condensation
65 – Vapor barrier comes in a variety of different materials, which of the below is the most common type used?
Polyethylene
66 – How many bundles or cartons per square are blue label cedar shingles shipped?
4
67 – What is the minimum distance that double coverage underlayment needs to extend beyond the interior face of the exterior wall line to prevent ice dam buildup?
24 inches
68 – What is counterflashing?
Vertical flashing bent over the top of base flashing
69 – Which of the below will divert rain water and keep ice and snow from building up on the upper side of the chimney?
Cricket
