Cheapest ⭐ Owens Corning 22-1/2 In. X 48 In. Raft-R-Mate Attic Rafter Vents With Optional Air Stop Insulation Block ⭐

Owens Corning’s raft-R-mate attic vent is an extruded polystyrene foam vent designed to assure unrestricted air flow from the soffit to the ridge vent. Additionally, raft-R-mate attic vent has an optional bend down air stop/insulation block at the top plate of the wall. The optional air stop/insulation block prevents loosefill insulation from filling the eave space during installation of a cathedral ceiling or attic floors, by closing off the opening below the raft-R-mate attic vent to the soffit. It also helps to prevent “wind wash” which can cause attic insulation to be blown back off of the top plate causing unwanted heat loss around the perimeter of the attic. Typically building codes require that unheated attics or cathedral ceiling rafter cavities be provided with a minimum amount of ventilation. Ventilation is typically provided by some combination of gable, ridge and soffit vents. Inadequate ventilation may lead to excess heat and humidity in the attic or rafter cavity. These conditions may lead to the deterioration of the roofing materials and deck, insulation, structural framing members, or interior ceiling finishes.