Baffles provide a channel for air to flow through certain parts of the attic.
Air baffle attic.
Baffles are also called wind baffles venting chutes rafter vents or insulation baffles.
Use it between rafters to create an air channel through insulation to help keep air flowing freely in your attic.
The foam block should sit flush over the exterior sheathing on the outside and the interior drywall on the inside.
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.
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.
The picture below courtesy of the epa indoor airplus program which we provide builder verification services for helps show how the system works.
Baffles are a critical component to our attic insulation process that provides multiple benefits to a difficult construction aspect.
For improved air circulation in the attic install the durovent 22 in.
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.
Surprisingly even the most well insulated attic space may still require the assistance of attic baffles to provide the additional air circulation.