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Roofing
Roofer Red Seal Certification
Flashing & Waterproofing
Knowledge Check
Flashing & Waterproofing
Knowledge Check
Knowledge Check
1 / 10
How far must ice and water shield membrane extend on each side of a valley centerline?
A
36 inches (900 mm)
B
24 inches (600 mm)
C
12 inches (300 mm)
D
18 inches (450 mm)
Check Answer
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