Insulating a garage door can not only lower the cost of heating or cooling your garage, but it can also lower the cost of heating or cooling your home .
Insulation is important in a garage door for many reasons.
The amount of insulation a garage door provides is represented in its R-value, which represents its resistance to heat flow. It is important to select a garage door with an R-value that is consistent with your local climate and lifestyle. If you heat or cool your garage, insulation is very important. Having a well-insulated garage door will keep your heating or cooling costs down by reducing the heat flow through the door. Someone living in an extreme hot or cold climate would likely require a garage door with a high insulation value.