Roof Vents

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brosnt1

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I have 6 of the plastic square roof vents that are just down from the peak. My question is: if you re-roof, do you install the vents after shingling or is it better to cover the entire base of the vent with shingles. they were just tucked up under 1 or 2 rows of shingles with 1/2 of the flange above the shingles.
any information or opinions will be greatly appreciated.
 

Markts30

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The flange at the top should be under the shingles and at the bottom should be on top...
Sounds like the roof you are re-doing was done right.
 

PEW

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You may want to consider replacing the plastic vents with metal ones as part of the re-roof. The plastic ones have a limited lifetime which will lead to leaks.
 
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