Butyl Joist Tape 100mm x 5m - Waterproof, Weather-Resistant Sealant for Decki...
Butyl Joist Tape 100mm x 5m - Waterproof, Weather-Resistant Sealant for Decking, Beams & Roofs | 6 Rolls. Butyl Joist Tape. Whether for decking, beams, or roofs, this Joist Tape adapts to your needs.