WAC 51-11C-610713. Table A107.1(3) — Default U-factors for steel emergency doors

Table A107.1(3) Default U-factors for Steel Emergency Doors Double-skin Steel Emergency Exit Doors Core Insulation 3 ft. x 6 ft. 8 in. 6 ft. x 6 ft. 8 in. 1-3/8 in. thickness Honeycomb kraft paper Mineral wool, steel ribs Polyurethane foam 0.57 0.44 0.34 0.52 0.36 0.28 1-3/4 in. thickness Honeycomb kraft paper Mineral wool, steel ribs Polyurethane foam 0.57 0.41 0.31 0.54 0.33 0.26 1-3/8 in. thickness Honeycomb kraft paper Mineral wool, steel ribs Polyurethane foam 0.60 0.47 0.37 0.55 0.39 0.31 1-3/4 in. thickness Honeycomb kraft paper Mineral wool, steel ribs Polyurethane foam 0.60 0.44 0.34 0.57 0.37 0.30 Double-skin Steel Emergency Exit Doors Core Insulation 3 ft. x 6 ft. 8 in. 6 ft. x 6 ft. 8 in. 1-3/8 in. thickness Honeycomb kraft paper Mineral wool, steel ribs Polyurethane foam 0.57 0.44 0.34 0.52 0.36 0.28 1-3/4 in. thickness Honeycomb kraft paper Mineral wool, steel ribs Polyurethane foam 0.57 0.41 0.31 0.54 0.33 0.26 1-3/8 in. thickness Honeycomb kraft paper Mineral wool, steel ribs Polyurethane foam 0.60 0.47 0.37 0.55 0.39 0.31 1-3/4 in. thickness Honeycomb kraft paper Mineral wool, steel ribs Polyurethane foam 0.60 0.44 0.34 0.57 0.37 0.30