Architectural Floating Clip: UL listed, overall height 2 1/2", design for 2" tall panels. Has 1/2" standoff that will accommodate up to 4" of blanket insulation. Tab is 22 gauge galvanized material with standard assembled 16 gauge galvanized base. Clip has slant hook to engage L shaped panels. Suggested use for roof planes over 30 feet. Allows for 1 1/2" of movement in each direction for expansion and contraction. Material is G90, 50KSI.