LR-3639 is one of the only metal terminations on the market designed to accommodate a rain screen drainage plane material with our WEEP System; it’s part of a technologically advanced design for creating division between the masonry and structural back-up walls. 26 gauge galvanized steel is bent into a 70° “L” shape. LR-3639 has a 3.5″ (89 mm) vertical attachment flange, 0.5″ (13 mm) ground, and 1″ (51 mm) bonding slots punched 1.75″ (44.45 mm) apart and is 8 feet long. The bonding slots provide favorable egress points for moisture to exit thin veneer wall systems. Image shown with optional WSD-3639.