How To Install Attic Air Baffles

Complete coverage of the attic floor along with sealing air leaks will ensure you get the best performance from your insulation.

How to install attic air baffles. These specialty vents do not affect the. Pull any existing insulation away from the edges of the attic where you will be putting up the baffles. It may be easiest to locate and mark them from below. Measure the distance between your rafters and purchase enough rafter vent baffles to install one over each.

Slide a baffle so it extends from the wall plate to the roof with the soffit vent behind it. Installing baffles in a attic where the insulation has already been installed. Staple the tabs of the baffle to the rafters and the wall plate spacing staples approximately 4 inches. Install attic baffles if the attic doesn t have attic baffles let s install them.

Rafter vents or insulation baffles install in any rafter space to create narrow gaps that direct fresh air from the soffit vents to the peak of the roof. As listed in the definition above the baffle is meant to regulate the flow of air. Staple each side to the roof deck spaced about every 4 inches. To completely cover your attic floor with insulation out to the eaves you need to install rafter vents also called insulation baffles.

If your roof rafters have been covered over with drywall or plywood you will have to remove it in order to install the baffles. Locate the soffit vents in the eaves of your home. By installing the baffles properly you can increase the r value all the way out to the exterior sheathing. The outside edge of the baffle should be parallel to the exterior wall sheathing.

Even with a 3 12 2 4 truss you are looking at a minimum r15 at the farthest edge. Just a few pointers and ideas that may make this crappy job a little easier. Step 2 in the bay.