Attic Baffles Spray Foam

They are usually made from cardboard or rigid foam board or polyvinyl chloride.

Attic baffles spray foam.

Don t let your attic suck power attic ventilators are a. Spray foam insulation that s convenient and easy to use. Class i e 84 fire retardant meets building code spec. Loose fill fibrous insulation is installed over the spray foam on the attic floor and up against the baffles on top of spray foam insulation to full required insulation height.

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. R value of 7 in 1 inch 97 closed cell foam. The photo above shows the scar from a power attic ventilator installed in a spray foam attic but i ve heard of several cases where roofers installed or tried to ridge vents. Baffles are also called wind baffles venting chutes rafter vents or insulation baffles.

They are manufactured from 100 recycled flame retardant pvc a material that is compatible with all insulation types including spray foam. 100 free of cfcs vocs penta bdes urea formaldehyde. Use closed cell foam it green for attic rafters. When set into place and sealed with spray foam the vent baffles are insulated and air sealed.

Ado products durovent 23 1 2 in. The best attic insulation. Get your kits the easy to use spray foam kit. In brief baffles are designed to provide a channel of air to flow through specific parts of your attic.

Spray foam insulation is installed to cover the entire attic floor and the juncture of the attic floor the top plates and the base of the baffles. Water resistant and durable. In addition to offering airflow in your attic space baffles keep attic insulation off your roof deck which is especially important for cold michigan winters. Typically made from polyvinyl chloride rigid foam board or cardboard they can be installed with a few.

The foam baffles hold up in michigan s humidity whereas cardboard baffles can absorb moisture causing them to fall and be ineffective. Sealed attics should not have any type of attic ventilation connecting it to the outside.