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.
Roof foam baffles.
The ado products durovent 23 1 2 in.
When set into place and sealed with spray foam the vent baffles are insulated and air sealed.
Sometimes called rafter vents baffles provide ventilation and keep the insulation from blocking airflow through your attic.
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.
Item 1571672 model xudv2248.
Typically made from polyvinyl chloride rigid foam board or cardboard they can be installed with a few.
Putting baffles in your attic is a crucial step in installing attic insulation.
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.
Durovent durovent 22 in x48 in raft vent 10 pack.