R Value Garage Door Heating Savings

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.

R value garage door heating savings.

See chart for r value comparisons. However an r 16 value is not twice as good as an r 8 value. The higher the r value the more the door resists conductive heat. Higher r value means greater insulation performance and thus more savings on your next heating and cooling bill.

The r values of most steel and fiberglass clad entry doors range from r 5 to r 6 excluding a window. When calculating the r value of a multilayered installation add the r values of the individual layers. Without thermal break heat and cold will move from the outside of the door to inside of the garage reducing the insulation. Attached but not actively heated or cooled garages should have a garage door with an r value between r 6 and r 9.

The r value of some insulations also depends on temperature aging and moisture accumulation. Actively cooled or heated garages should have a garage door with an r value of r 13 or higher to save on energy costs. The standard garage door r value recommendation for a detached garage depends on your climate but if you re looking for the best r value garage door insulation you want to find a garage door with a minimum r value of 12 or more to be most effective. Installing more insulation in your home increases the r value and the resistance to heat flow.

This guide will teach you everything you need to know about insulation r values so you can better insulate your home. It does not offer twice as much thermal resistance or twice the energy savings. R value measures how well building insulation can prevent the flow of heat into and out of the home. In general a higher r value means better insulation but there s more to it than that.