DriwalITM CDR Vent is a 0.30-inch-thick drainage and ventilation mat. It is designed to eliminate moisture and moisture vapor in roofing and siding applications. DriwalITM CDR Vent is useful in cedar shingle/shake roofing and siding in which a clean airspace is desired for ventilation and drainage.
KEENE BUILDING PRODUCTSâ„¢ is the manufacturer, distributor & marketer of 3-dimensional products for moisture & noise control. In six short years Keene has succeeded in producing & marketing first class products.