Insulated Steel Door R Value

All doors are tested in accordance with astm c1363 and sdi 113.

Insulated steel door r value.

Overhead door corporation uses a calculated door section r value for our insulated doors. The trio e door is steel stiffened for strength but has achieved an operable u factor of 0 36 which is better than most other steel stiffened doors currently available on the market today. A 2 1 4 inch solid core wooden door for example has an r value of 3 70. While this remains the industry standard we are seeing more specs with the latest standards for thermal transmittance astm c1363 and air.

Model 5740 17 5 r value. We have several door styles to meet your insulated door needs for both residential and commercial applications. In the chart above you will notice that there are two vastly different r values provided for insulated metal doors with polyurethane insulation. Model 5720 12 76 r value.

Glazed doors in hot or temperate climates should have a low shgc. Polyurethane garage door insulation provides thermal efficiency 9 31 r value. For comparison with other materials a 2 inch thick metal door with a core composed of urethane foam insulation has an r. South facing glazed doors in cold climates should.

Look for a door with a good insulation value say a u value of at least 0 2 that is r 5 metric. In new homes especially in cold climates in very energy efficient buildings look for the best performance doors possible. Many building owners spend millions of dollars a year on energy bills and the trio e represents a chance for them to realize significant savings on a new or. The lower the coefficient the better the glazed door is at blocking the sun s heat.

Steel backing for clean finished interior appearance. Similar to most other building products manufacturers the steel door institute has encouraged the practice of citing a calculated value for thermal performance of the cores in the doors u and r values. Solar heat gain coefficient shgc a measure of how well a glazed door assembly absorbs or reflects heat from the sun. 1 u value r value.

B18 series steel stiffeners u factor 0 50 r value 2 01. The r values of most steel and fiberglass clad entry doors range from r 5 to r 6 excluding a window. For example a 1 1 2 inch 3 81 cm thick door without a window offers more than five times the insulating value of a solid wood door of the same size. Mulitple surface options embossed wood grain microgroove wave pattern and smooth.