U Factor Insulated Metal Garage Door

Thermal resistance is a huge factor that affects the energy performance of garage door insulation when roll up garage doors are in the closed position.

U factor insulated metal garage door.

8 01 u factor of 0 125 calculated using the ashrae handbook of fundamentals. Fully insulated frame technology is the key factor for eliminating air leakage when using this type of door to seal the building envelope or enclose any climate controlled space. U value is the inverse of r value. Thermal resistance is measured using r value and u factor.

The slats on the door are insulated with polystyrene for increased thermal protection. All doors are tested in accordance with astm c1363 and sdi 113. What is garage door r value. L18 series honeycomb u factor 0 56 r value 1 80.

U factor will vary between 0 66 and 1 00 depending on finish and color selection. Installed u factor a tested value of actual energy loss whether heat or cold of an installed door wall or window assembly. L18 series polystyrene u factor 0 38 r value 2 64. A high garage door u factor means that your garage door transfers heat easily.

Other competitors that have a similar r value clopay 3720 for example listed under sandwich doors on this pdf show u value of 0 16 this one has r value of 18 4. The u factor shgc and vt factors vary and are determined by the type of glass you specify. March 01 2018 by cornellcookson. 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.

B18 series steel stiffeners u factor 0 50 r value 2 01. Alpine s imb v7 fast acting insulated roll up doors overhead insulated door with insulated metal backed slats that are 7 8 inch thick slats with an r value. The lower the number the lower the energy loss and therefore the better the thermal performance. Chi specs show a u value of 0 058 for the chi 2216 door 2 polyurethane insulated double steel door with r value 17 19.

Keep in mind that insulated glass units are ineffective if the frame leaks air. Can this be correct. Thermal resistance is a huge factor that affects the energy performance of insulated roll up garage doors when they are in the closed position. To keep your garage cool in summer or warm in winter you want a garage door with a u factor of 35 or less although the lower the u factor the better.

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.