Trex has updated its Butyl Tape for RainEscape with Clean-Edge Butyl Tape. The tape is integral to the manufacturer’s under-deck drainage system, which employs troughs and downspouts to capture water and divert it away from the deck, creating dry, usable space underneath while protecting the foundation from moisture penetration. Once the troughs are installed, the self-adhesive, waterproof tape is applied to create a watertight seal between the trough overlaps. The tape also seals around deck screw holes to help to prevent rust and corrosion. A 4-inch-by-50-foot roll sells for approximately $65. trex.com