U Value Garage Door

U factor will vary between 0 66 and 1 00 depending on finish and color selection.

U value garage door.

See each collection or sell sheet for options. It also has the important advantage of measuring the thermal efficiency of the door itself. Therefore the lower the u value the more energy efficient the material is. U value is less commonly used by manufacturers.

Shoppers may get the impression that this number is important and it is but most are unsure about what it is or why they should even pay attention to it when choosing a garage door. A stylish and secure garage door not only enhances your curb appeal it can help keep you safe. The u factor is the measurement of thermal conduction due to heat flow through an installed door system. For example the door s description may read 16 ft x 7 ft r value 6 5.

Installed u factor a tested value of actual energy loss whether heat or cold of an installed door wall or window assembly. U factor though not used as often as r value u factor is another number you may see when shopping for a garage door. What is the standard r value for a garage door. 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.

Do bear in mind that u values are really only a guide and there are other factors as we have mentioned previously that will affect that the final insulating values that a particular door installation will provide. R value measures the rate of heat loss but u value measures the rate of heat transfer. U value is the inverse of r 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.

U factor represents the flow of heat through a material meaning the lower the u factor the better. R value is the thermal resistance to heat flow which generally applies to specific materials or the thickness of the insulation in a garage door section. But ultimately the lower the u value the less you are going to pay in energy bills if the garage is attached to your home. With a quality double glazed unit approximate u values are 1 2wm2k or alternatively a window energy rating wer of a.

U value has an inverse relationship to r value. Clopay garage door r values depend on the door s thickness material and type of insulation and range from 6 3 to 20 4. However it s arguably the more accurate measurement of a garage door s thermal efficiency. The u value of a garage door is a measure of the amount of heat that passes through a surface area of 1m2 for each degree of temperature difference between the inside and outside.

The lower the number the lower the energy loss and therefore the better the thermal performance. The liniar energyplus range contains 6 chambers and can achieve a u value as low as 0 8 w m2k with the correct glazing specification. For best u factor choose finish and color with high solar reflectance bright colors.