Insulated Overhead Door U Value

The effectiveness of the insulation is expressed as an r value which is a measure of thermal resistance to heat flow.

Insulated overhead door u value. The lower the u value the better the insulating ability. U value is a measure of the flow of heat through an insulating or building material. Polyurethane garage door insulation provides thermal efficiency 9 31 r value. Fabricated of 16 gauge flush galvanized steel exterior these 2 51 mm thick doors offer an r value of 7 35.

Alpine s imb v5 fast acting insulated overhead door rolling insulated door with insulated metal backed slats that are 5 8 inch thick slats with an r value. Insulated sectional steel doors the insulated sectional steel door model 418 is a high quality heavy duty door that provides protection against hot and cold environments. Thermacore series commercial sectional doors are an ideal choice for applications that demand the highest levels of thermal efficiency air infiltration and wind load resistance. 0 56 to 1 13 w m2k which is high compared to other.

Thermal resistance is a huge factor that affects the energy performance of insulated roll up garage doors when they are in the closed position. The imb v5 door s profile is also available with foamed in place polyurethane. Classic steel model 8500 has the highest level of garage door insulation for our residential doors with an r value of 16 22. We have several door styles to meet your insulated door needs for both residential and commercial applications.

6 82 u factor of 0 147 calculated using the ashrae handbook of fundamentals the slats are insulated with polystyrene for increased thermal protection. For example a building with material with an r value of r 11 converts to an u value of 0 09 1 r or 1 11 0 09. Air leakage on the other hand refers to the seal at the overhead door guides head and hood while the rolling door is in the closed position. The higher the r value the better the insulation in the door.

With an r value of 17 5 3 09 w m 2 a u value of 057 324 m 2 w and one of the best overall air infiltration ratings in the industry the thermacore model 592 is one of the most thermally efficient door system in its class. Garage door r value. Overhead door corporation uses a calculated door section r value for our insulated doors. The fact that an exterior door is made of solid wood or steel with a layer of polyurethane does not mean that the door has a good insulation value.

Reference table for u values u value is the coefficient of transmission i e the transmission of heat through the materials which compose the building s envelope or outer shell. Engineered for high thermal efficiency. Even the best entry doors have relatively modest insulation levels. The thermacore product line s unique manufacturing process provides a cfc free fully.

Thermacore is the premier line of insulated sectional doors available today. Thermal resistance is measured using r value and u factor. Model 5720 12 76 r value. Model 5740 17 5 r value.