Stoneleaf PUR is a premium self-adhesive sealing tape manufactured from a heavy-duty, closed-cell cross-linked polyethylene foam. Engineered specifically to seal between the roof membrane, counter-battens, and rafters, it effortlessly takes up any structural irregularities between the timber and the underlay. Providing an effective thermal break and an water tight seal, it delivers excellent thermal performance while protecting nail penetrations from moisture ingress.