Roof Foam Baffles Ventilation

They can create deeper ventilation channels for example and can be sturdier.

Roof foam baffles ventilation.

They are usually made from cardboard or rigid foam board or polyvinyl chloride. 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. When set into place and sealed with spray foam the vent baffles are insulated and air sealed.

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. The dual function design creates ventilation channels under the roof sheathing for healthy air circulation while integral baffles prevent wind washing. Site built baffles have several possible advantages over manufactured baffles.

When the wind is blowing these ventilation channels allow air to move from the soffit vents to the ridge vents.