Installing Air Baffles In Attic

Staple each side to the roof deck spaced about every 4 inches. By installing the baffles properly you can increase the r value all the way out to the exterior sheathing. If your roof rafters have been covered over with drywall or plywood you will have to remove it in order to install the baffles.

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You will need a baffle for each space between the rafters.

Installing air baffles in attic.

Pull any existing insulation away from the edges of the attic where you will be putting up the baffles. Install attic baffles if the attic doesn t have attic baffles let s install them. You ll need to crawl to the end of the eave and staple the baffle against the roof deck. Installing rafter vents between the rafters along the soffit on the.

Step 2 in the bay. Even with a 3 12 2 4 truss you are looking at a minimum r15 at the farthest edge. The outside edge of the baffle should be parallel to the exterior wall sheathing. Without this air movement any moisture that gets into the attic area becomes stagnant and causes mold and mildew to develop.

As listed in the definition above the baffle is meant to regulate the flow of air.

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