M-D Building Products 2816 M-D 0 Closed-Cell Weather-Strip, 1/2 in W X 17 Ft L X 1/4 in T, Brown Firm, waterproof, dustproof and airtight closed cell foam Minimal compression for tight seal between surfaces Easy, self-adhesive application; seals top and sides of doors and windows Closed cell PVC foam 1/4-inch thick by 1/2-inch wide by 17 feet