Wayne dalton uses a calculated door section r value for our insulated doors.
Glass garage door r value.
If it is attached it is best to choose a garage door with an r value of r 12 or r 16.
Foamed in place polyurethane insulation fills the rails and stiles providing enhanced thermal efficiency that adds r value of up to 4 36 on the door.
The higher the r value the greater the insulating properties of the door.
See chart for r value comparisons.
Insulated rails and stiles are available as an option.
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.
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.
2 how do you use your garage.
R value is a measure of thermal efficiency.
If it is detached and unheated a lightly insulated or non insulated door should be enough.
Then buy a door with at least an r 16 value.
They are the perfect enhancement to your home s indoor and outdoor living spaces while adding curb appeal and appreciation to the homes value.
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