Air Seal Attic Baffles

Baffles are also called wind baffles venting chutes rafter vents or insulation baffles.

Air seal attic baffles.

The picture below courtesy of the epa indoor airplus program which we provide builder verification services for helps show how the system works. The foam block should sit flush over the exterior sheathing on the outside and the interior drywall on the inside. Basic functions of baffles baffles are chutes that when installed properly can provide a channel for air to flow from your exterior soffit vents up into your attic space. Baffles provide a channel for air to flow through certain parts of the attic.

Provides the best moisture and air infiltration seal between the rafter vent and wall top plate. Find a diagram of common air leaks here here s a quick primer on fixing draft prone spots. From left to right air flows through the soffit vents up over the baffles allowing for the required roof venting. An attic baffle is simply an item to regulate the flow of air aka required roof venting and impede it the insulation from interfering with each other.

Combined with attic insulation air sealing can help to alleviate the formation of dangerous ice dams in the winter. The attic is usually where you can find some of the largest opportunities to save energy in your home. Intake vents located at the lowest part of the roof under the eaves allow cool. Baffles are a critical component to our attic insulation process that provides multiple benefits to a difficult construction aspect.

Air seal the attic baffle once the attic baffle is fixed in place seal the drywall edge against the interior wall with a bead of foam sealant then fit one of the foam blocks horizontally over it. Product overview for improved air circulation in the attic install the durovent 22 in. Windblock rafter infiltration block. By air sealing in your attic you can stop many major air leaks and help to maintain the desired temperature throughout your home.

Attic baffles how they work. Baffles redirect airflow up over the insulation and they re the p. The number one prep step. Typically made from polyvinyl.

Use it between rafters to create an air channel through insulation to help keep air flowing freely in your attic. The correct way to install baffles to prevent wind washing in the birds vents soffit vents. Works well with durovent and provent to provide a moisture impervious vent and block system. Polyboard material is waterproof and prevents moisture infiltration.