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.
Garage door r value chart.
Without these weatherproofing features the cold or heat will reduce the energy efficiency of the door.
R value is often used as a way to show if a door is energy efficient.
Detached garages need a lower overall r value between 0 and r 6.
If your garage is not detached then the garage is probably insulated and you.
The higher the r value the greater the insulating properties of the door.
The r value of a residential entry door or garage door is a way to note the thermal efficiency of a door a fancy way of saying how well the door insulates its enclosure.
Attached but not actively heated or cooled garages should have a garage door with an r value between r 6 and r 9.
A value of r 16 offers a 5 reduction in heat flow and a 5 improvement in energy efficiency over a value of r 8.
Overhead door corporation uses a calculated door section r value for our insulated doors.
See chart for r value comparisons.
R value of garage door insulation what is r value.
Actively cooled or heated garages should have a garage door with an r value of r 13 or higher to save on energy costs.
That s particularly true if you have a heating system in the garage.
R value is a measure of thermal efficiency.
The value is also based on the thickness of the insulation in your door as well as the chemical.
If it s not insulated then an r 6 value will do.