Gibraltar's Butyl Tape is commonly used in metal roofing installations to seal metal-to-metal connections. Conveniently sold in a 50 ft. roll that can easily be cut to length. Gibraltar's Butyl Tape is intended for both commercial and residential roofing applications. It adheres to most clean and dry surfaces and does not harden or crack over time providing an effective barrier against moisture. Recommended for roof slope of 3/12 pitch or greater.