OSI On the roof, you need a sealant that forms a permanent weatherproof seal in all exterior gaps and joints. OSI has a full line of Roofing & Gutter sealants to meet your needs.
Versatex
Versatex is a free-foam cellular PVC trimboard that cuts, routs, and fastens just like wood. Engineered to be reversible, with both a smooth finish and the classic rough cedar texture.
