CertaTape™ Used to seal seams and edges on window flanges, corners, joints, rips, punctures and tears. With a high-strength coated polypropylene film, CertaTape won’t break down over time, so you can be sure of dependable performance over the long term. CertaTape helps you improve the integrity of the building’s envelope by reducing air and moisture penetration.
CertainTeed: Peace of Mind For more than a century, building professionals have trusted CertainTeed for products that deliver long-lasting performance and homeowner satisfaction. CertainTeed continues that quality commitment with CertaWrap Weather Resistant Barrier, CertaFlash and CertaTape.