WAC 51-11C-610714. Table A107.1(4)—Default U-factors for steel garage and hangar doors

Table A107.1(4) Default U-factors for Steel Garage and Hangar Doors Double-skin Steel Garage and Aircraft Hangar Doors One-piece tilt-up a Sectional tilt-up b Aircraft hangar Insulation e 8 ft. x 7 ft. 16 ft. x 7 ft. 9 ft. x 7 ft. 72 ft. x 12 ft. c 240 ft. x 50 ft. d 1-3/8 in. thickness XPS, steel ribs EPS, steel ribs 0.36 0.33 0.33 0.31 0.34 - 0.39 0.31 - 0.36 2 in. thickness XPS, steel ribs EPS, steel ribs 0.31 0.29 0.28 0.26 0.29 - 0.33 0.27 - 0.31 3 in. thickness XPS, steel ribs EPS, steel ribs 0.26 0.24 0.23 0.21 0.25 - 0.28 0.24 - 0.27 4 in. thickness XPS, steel ribs EPS, steel ribs 0.23 0.21 0.20 0.19 0.23 - 0.25 0.21 - 0.24 6 in. thickness XPS, steel ribs EPS, steel ribs 0.20 0.19 0.16 0.15 0.20 - 0.21 0.19 - 0.21 4 in. thickness Noninsulated Expanded polystyrene Mineral wool, steel ribs Extruded polystyrene 1.10 0.25 0.25 0.23 1.23 0.16 0.16 0.15 6 in. thickness Noninsulated Expanded polystyrene Mineral wool, steel ribs Extruded polystyrene 1.10 0.21 0.23 0.20 1.23 0.13 0.13 0.12 Uninsulated All products 1.15 Double-skin Steel Garage and Aircraft Hangar Doors One-piece tilt-up a Sectional tilt-up b Aircraft hangar Insulation e 8 ft. x 7 ft. 16 ft. x 7 ft. 9 ft. x 7 ft. 72 ft. x 12 ft. c 240 ft. x 50 ft. d 1-3/8 in. thickness XPS, steel ribs EPS, steel ribs 0.36 0.33 0.33 0.31 0.34 - 0.39 0.31 - 0.36 2 in. thickness XPS, steel ribs EPS, steel ribs 0.31 0.29 0.28 0.26 0.29 - 0.33 0.27 - 0.31 3 in. thickness XPS, steel ribs EPS, steel ribs 0.26 0.24 0.23 0.21 0.25 - 0.28 0.24 - 0.27 4 in. thickness XPS, steel ribs EPS, steel ribs 0.23 0.21 0.20 0.19 0.23 - 0.25 0.21 - 0.24 6 in. thickness XPS, steel ribs EPS, steel ribs 0.20 0.19 0.16 0.15 0.20 - 0.21 0.19 - 0.21 4 in. thickness Noninsulated Expanded polystyrene Mineral wool, steel ribs Extruded polystyrene 1.10 0.25 0.25 0.23 1.23 0.16 0.16 0.15 6 in. thickness Noninsulated Expanded polystyrene Mineral wool, steel ribs Extruded polystyrene 1.10 0.21 0.23 0.20 1.23 0.13 0.13 0.12 Uninsulated All products 1.15 a Values are for thermally broken or thermally unbroken doors. b Lower values are for thermally broken doors; upper values are for doors with no thermal break. c Typical size for a small private airplane (single-engine or twin). d Typical hangar door for a midsize commercial jet airliner. e XPS is extruded polystyrene, EPS is expanded polystyrene.