Roof Foam Baffles Ventilation

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

Roof foam baffles ventilation.

The dual function design creates ventilation channels under the roof sheathing for healthy air circulation while integral baffles prevent wind washing. In brief baffles are designed to provide a channel of air to flow through specific parts of your attic. Brentwood s accuvent baffles for roof ventilation are designed to save energy for cleaner greener living spaces. Roofs often require ventilation channels directly under the roof sheathing either for a short section of the roof for example near the eaves or for the entire roof from soffit to ridge.

They are known are also known as wind baffle insulation baffles rafter vents or venting chutes. When set into place and sealed with spray foam the vent baffles are insulated and air sealed. When the wind is blowing these ventilation channels allow air to move from the soffit vents to the ridge vents. Baffles establish a channel for air to circulate between the insulation and the roof sheathing.

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.