U Factor Insulated Metal Garage Door

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.

U factor insulated metal garage door.

What is garage door r value. The u factor shgc and vt factors vary and are determined by the type of glass you specify. 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. B16 series steel stiffeners u factor 0 53 r value 1 89.

A high garage door u factor means that your garage door transfers heat easily. 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. 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. The slats on the door are insulated with polystyrene for increased thermal protection.

The lower the number the lower the energy loss and therefore the better the thermal performance. Can this be correct. 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. Thermal resistance is a huge factor that affects the energy performance of insulated roll up garage doors when they are in the closed position.

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. 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. Installed u factor a tested value of actual energy loss whether heat or cold of an installed door wall or window assembly. Thermal resistance is measured using r value and u factor.

U factor will vary between 0 66 and 1 00 depending on finish and color selection. U value is the inverse of r value. 8 01 u factor of 0 125 calculated using the ashrae handbook of fundamentals. Garage doors with polyurethane insulation will provide the highest level of sound isolation and climate control and are a great choice if you live in very cold or hot climates and your garage door is used as the primary entrance to your home.

B18 series steel stiffeners u factor 0 50 r value 2 01. L18 series polystyrene u factor 0 38 r value 2 64. March 01 2018 by cornellcookson. All doors are tested in accordance with astm c1363 and sdi 113.

Thermal resistance is measured using r value and u factor.