Allows and unobstructed air channel through insulation. Constructed of extruded polystyrene foam. Wide flanges for easy stapling. Perforated for easy separation. Easily cuts to fit any space. For use in 16" or 24" rafter or truss applications. Recommendedfor insulating new construction. One ventilation channel per rafter or truss is recommended.
Price: LOWEST PRICE
Click here to buy from Amazon