Pebline Butyl Roofing Tape is a double-sided, pressure-sensitive adhesive sealant tape made from a unique butyl synthetic rubber blend. It is designed specifically for sealing metal roof laps (side laps and end laps) to create a permanent, watertight seal. Unlike other sealants that dry out, Pebline butyl remains permanently flexible and non-hardening for over 20 years. It accommodates the thermal expansion and contraction of the roof sheets without breaking the seal, ensuring leak-free performance for the life of the roof.