Gibraltar Building Products 81840 Operating instructions

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ADJUSTABLE PIPE FLASHING #81840
INSTALLATION GUIDELINES
These installation guidelines are for use with typical or standard applications. It is always recommended to seek advice from a licensed professional, and to
check with your local building inspector or building permit office for approvals and possible variations that may apply.
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Measure for correct pipe size
Form flashing base to roof profile
Fasten flashing to complete
Trace flashing Apply sealant
Choose pipe opening and trim Slide flashing over pipe using
water
0.3
.8 - 1.5
1.5 - 2.0
2.0 - 2.5
2.5 -3.25
3.25 - 4.0
4.0 - 4.5
4.5 - 5.25
5.25 - 5.75
Pipe Range: ¼ in. – 5 ¾"
Aluminum Base: 8 in. x 8 in.
®
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