Black Deck Joist Tape - 2" X 50 Feet, 8 Rolls - Butyl Waterproof Flashing Tape To Protect Wood & Metal Joists From Rot, Moisture & Decay

About This Product

Building or repairing a deck? Don’t skip protecting the joists! This black deck joist tape is a lifesaver for extending the life of your deck’s structure. It comes as an 8-pack, with each roll measuring 2 inches wide by 50 feet long, giving you plenty of coverage for big projects or multiple jobs. The tape is made with a thick butyl rubber adhesive that creates a super strong, waterproof seal over your wooden or composite joists and beams. Why use it? It blocks moisture, rain, and snow from soaking into the top of the joists where the decking boards sit—which is where rot and decay almost always start. It also helps prevent metal corrosion on joist hangers. This stuff is tough: it handles extreme temps from -40°F to 248°F, resists UV rays, and won’t crack or lose its grip. Application is simple: just make sure the wood surface is clean and dry, cut to length, peel, and press down firmly. Use it on deck framing, fence posts, pergola beams, or even roofing elements. It’s a small step that adds years to your outdoor structure. A must-have for any serious deck builder or DIYer!