An aluminum ridge vent has a mushroom shaped profile combined with a wide flange on both sides that sits on top of the roof shingles.
Installing roof ridge vent existing roof.
Snap a chalk line on either side of the ridge that is about an inch from the peak and cut the shingles along both.
A ridge vent is an important part of a home s roofing system.
How to add a roof ridge vent to an existing roof 1.
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The ridge of the roof is prepared similarly for both types of ridge vent.
Installed at the peak of a sloped roof the ridge vent allows damp warm air to escape from the attic.
A properly installed ridge vent increases energy efficiency and prolongs the life of your roof.