Garage Door R Value Difference

This number is calculated as a function of thickness of the insulator and its physical properties.

Garage door r value difference. When it comes to r values for garage doors the higher the better. Actively cooled or heated garages should have a garage door with an r value of r 13 or higher to save on energy costs. In the two test doors shown above the advertised r value of the polystyrene door is 9 1 while the polyurethane door r value advertised is 17 50. Overhead door corporation uses a calculated door section r value for our insulated doors.

Detached garages need a lower overall r value between 0 and r 6. U value is a measure of the flow of heat through an insulating or building material. Attached but not actively heated or cooled garages should have a garage door with an r value between r 6 and r 9. Thus r value is used to show the energy efficiency of a product.

What else should i consider. The higher the r value the greater the insulation performance. A value of r 16 offers a 5 reduction in heat flow and a 5 improvement in energy efficiency over an r value of 8. R value measures how well certain building insulation materials can resist heat.

What is a good r value for a garage door. A garage door s r value represents its ability to slow the transmission of heat. The polyurethane is a better insulator and therefor gives a higher r value then the polyurethane. What r value should you look for in a new garage door.

By using an insulating material you can reduce the transmission of heat or cold. By basing much of your decision by looking at the highest advertised r value you may be neglecting other important considerations in evaluating what door is best for you. 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. The lower the u value the better the insulating ability.

For instance r 16 is better than r 12. There are mainly 2 materials for insulating garage doors polystyrene and polyurethane. We have several door styles to meet your insulated door needs for both residential and commercial applications. When determining how much insulation you need don t guesstimate calculate.

Know exactly how much you need with our project calculators. The higher the r value the greater the insulating properties of the door. Finally the larger the number the better the thermal insulation of the door. Higher is better when looking at garage door r values but it s not the only factor to consider.

An r value of 16 is not twice as good as an r value of 8. See chart for r value comparisons. A higher r value means a slower transmission of heat which means less cold air leaking into your garage in the winter and less heat invading your garage in the summer. 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.