Foam Attic Air Baffles For Eves

Baffles provide a channel for air to flow through certain parts of the attic.

Foam attic air baffles for eves. Baffles are also called wind baffles venting chutes rafter vents or insulation baffles. Sometimes called rafter vents baffles provide ventilation and keep the insulation from blocking airflow through your attic. You ll need to crawl to the end of the eave and staple the baffle against the roof deck. 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.

Simply add a 2 2 or foam spacer on each side or the truss rafter install your material of choice to them. Staple plastic or foam baffles to the roof sheathing near the eaves to keep the material away. 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. The ventilation system features polystyrene construction which is lightweight and moisture resistant and the integrated baffle means that you need no blocking material between the vent and the top plate.

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. Typically made from polyvinyl. Putting baffles in your attic is a crucial step in installing attic insulation.

Install attic baffles if the attic doesn t have attic baffles let s install them. 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. For the same reason insulation shouldn t touch the roof s underside. The airflow from the soffits to the ridge vent keeps the roof cool and prevents ice dams and the material will block that flow.

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