Garage Door U Value

However it s arguably the more accurate measurement of a garage door s thermal efficiency.

Garage door u value.

The r value is determined by the thickness of the door and by the materiel that the insulation is made of. U factor will vary between 0 66 and 1 00 depending on finish and color selection. Generally these will offer the highest levels of insulation when installed fully behind a garages structural opening and will usually provide a u value of between 1 4 and 2 w m k when fitted. U value a unit of measurement by which heat is transferred from one side of the door to the other.

What s interesting about this door is that overhead s certified statement says that the door has a u value of 24 or an r value of 4 17. U factor though not used as often as r value u factor is another number you may see when shopping for a garage door. The measurement is calculated in btu s and is the amount of heat transferred in one hour with a one degree temperature difference across one square foot of the door. For best u factor choose finish and color with high solar reflectance bright colors.

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. Installed u factor a tested value of actual energy loss whether heat or cold of an installed door wall or window assembly. Clopay garage door r values depend on the door s thickness material and type of insulation and range from 6 3 to 20 4.

We tested a garaga 138 sample and it came back with an r value of 7 89. 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. When you want to give your home that boost in value with a garage door installation we make it fun and easy to complete the project make the smart investment on a new residential garage door available right away or designed just how you like it to get the perfect style for 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 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. See each collection or sell sheet for options. U value is the inverse of r value.

The lower the number the lower the energy loss and therefore the better the thermal performance. U value has an inverse relationship to r value. For example clopay has few different types of 3 lyres door steel back door and the r value rated between 9 18 4 the difference between the r values is caused by the thickness of the doors 1 model is 1 3 8 and the other model is 2. U value is less commonly used by manufacturers.