Garage Door R Value Difference

When buying a garage door it s important to consider a few different aspects before worrying about r value. 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. For instance r 16 is better than r 12.

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Actively cooled or heated garages should have a garage door with an r value of r 13 or higher to save on energy costs.

Garage door r value difference.

Another thing that effecting the r value is the material of the insulation. There are mainly 2 materials for insulating garage doors polystyrene and polyurethane. Overhead door corporation uses a calculated door section r value for our insulated doors. Today s garage doors with polyurethane insulation will have an r value of 12 18 garaga s residential garage doors provide up to r 18 but you also want to choose a door that has otherwise good construction.

This number is calculated as a function of thickness of the insulator and its physical properties. U value is a measure of the flow of heat through an insulating or building material. Finally the larger the number the better the thermal insulation of the door. Attached but not actively heated or cooled garages should have a garage door with an r value between r 6 and r 9.

The polyurethane is a better insulator and therefor gives a higher r value then the polyurethane. We have several door styles to meet your insulated door needs for both residential and commercial applications. The lower the u value the better the insulating ability. What is a good r value for a garage door.

Detached garages need a lower overall r value between 0 and r 6. That s particularly true if you have a heating system in the garage. For instance if your garage is not attached to the home and is insulated you ll want to look for a door with a rating higher than r 10. Thus r value is used to show the energy efficiency of a product.

Higher is better when looking at garage door r values but it s not the only factor to consider. The higher the r value the greater the insulating properties of the door.