Contractor Roofing Exam
Roof covering
Built-up roof covering
Modified bitumen roof covering
Underlayment
One-fourth
One-third
One-half
Two-thirds
Overflow
Surface Drain
Scupper
Horizontal Drain
Yes
No
0.019
0.025
0.026
0.050
One-fourth
One-third
One-half
One
2
3
4
5
3
12
16
22
8
12
16
24
Light
Moderate
Severe
Negligible
15
20
35
55
3
4
5
6
3,2
4,2
4,3
5,3
2 inches
8 inches
13 inches
19 inches
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