Air Baffle Attic

That airflow is intended to churn the stale air in.

Air baffle attic.

The picture below courtesy of the epa indoor airplus program which we provide builder verification services for helps show how the system works. 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. Use it between rafters to create an air channel through insulation to help keep air flowing freely in your attic. The beauty of attic baffles is that they are available from most home improvement stores and can be installed simply with a few staples if you want the diy approach.

The foam block should sit flush over the exterior sheathing on the outside and the interior drywall on the inside. Baffles are also called wind baffles venting chutes rafter vents or insulation baffles. It can be cut to fit most joist spaces and is an affordable way to meet energy code requirements for air flow. 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.

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. Surprisingly even the most well insulated attic space may still require the assistance of attic baffles to provide the additional air circulation.