The #15 SOLID LEG Control Joint is manufactured for horizontal application on exterior plaster walls. The .30” gap in the V groove is designed to allow movement due to horizontal expansion and contraction of plastered walls. The 5½” x ¾” horizontal control joint has a 3” long upper solid flange that allows for water to weep out of the stucco cavity and a 1.5” long lower expanded metal flange that allows proper keying of plaster. The Control Joint is fabricated from minimum 0.018-inch thick hot-dipped galvanized steel complying with ASTM A653 having a minimum G90 coating complying with ASTM A924.