1
Q
What is an ice dam?
A
Water backs up under the shingles and down through the roof sheathing
2
Q
 Install eaves flashing membrane…
A
24 inches beyond the interior face of the exterior wall line
3
Q
Unit of measure of asphalt shingles?
A
Square. 100 ft.²
4
Q
Build up roofs require vapor barriers. Weight?
A
45 to 80 pounds per square
NASCLA Exam
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