Foam Attic Air Baffles For Eves

Foam baffles are more durable but are a straight section that cannot be bent or cut to fit easily in both cases we need to seal the eave and top plate.

Foam attic air baffles for eves. For decades the typical solution to this problem was to install ventilation baffles near the eaves connecting the air space above the soffit vents with the attic and then to install as much fluffy insulation usually fiberglass or cellulose as there was room for between the top plate of the exterior wall and the ventilation baffle. Cardboard or plastic foam metal eave baffles the model building codes ibc and irc international building code and international residential code require enclosed attic spaces in most cases to have ventilation. When set into place and sealed with spray foam the vent baffles are insulated and air sealed. Another popular option is to create an on site baffle using dens armor plywood or foam boards ripped to width and left at 4 long.

Install attic baffles if the attic doesn t have attic baffles let s install them. The rigid foam is cut to be 2 inches wider than the space between rafters then 1 inch of foam is scored and folded over on either side of the foam creating standoffs that hold the foam away from the roof sheathing providing a space for air to flow. Baffles provide a channel for air to flow through certain parts of the attic. Simply add a 2 2 or foam spacer on each side or the truss rafter install your material of choice to them.

For the same reason insulation shouldn t touch the roof s underside. Typically made from polyvinyl. Attach this roof and attic insulation treatment using foam baffles to ventilate insulate and channel cold and hot air to roof vents before insulation is add. Putting baffles in your attic is a crucial step in installing attic insulation.

Staple plastic or foam baffles to the roof sheathing near the eaves to keep the material away. The airflow from the soffits to the ridge vent keeps the roof cool and prevents ice dams and the material will block that flow. You ll need to crawl to the end of the eave and staple the baffle against the roof deck. The ado products durovent 23 1 2 in.

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