the only kind of garage door that you can add insulation two would be a steal non-insulated hollow what they call a pan door. The best thing or way to insulate your garage door is to use the insulation that was manufactured for that garage door it is Styrofoam panel with a vinyl backing. They are manufactured to just pop into your panels and they are held in with a white plastic clip key that keeps the insulation in place. But he will not be able to find this type of garage door installation at a retail hardware store like Lowes or Home Depot. You can only get this type of insulation from a garage door manufacturer or your local garage door company will be able to get the insulation needed to insulate your door properly.

torsion spring system or extension spring system

Now if you do not want to go that route then I have seen homeowners by sheets of insulation from Home Depot that you would use on your home they are about a half inch to three quarters of an inch thick and you can cut them down to size and just glue them to the inside of the door panel and it should work just fine. But you have to remember that some insulation panels that you would get from Home Depot or Lowe’s tends to weigh a lot more than the Styrofoam panels from the garage door manufacturers. So remember if you were going to add that much extra weight then you will need to adjust the torsion spring system or extension spring system that you are using to counterbalance your garage door.

professional spray foam

If you have a solid one piece garage door that flips up instead of rolling up on track then this process will be very easy because you’re dealing with a flat surface that does not move or role in any way so you would just need to glue or nail the panels to the back of the garage door. Also there is another way you could insulate the garage door and that is using professional spray foam not the kind you buy and I can at the hardware store but the spray foam that comes out of a spraygun that insulation companies used to insulate your attic and walls. This type of spray foam insulation is very very effective and makes a big difference In room temperature. The only drawback is it is not very pretty to look at. And adding any kind of weight or paneling on the back of your garage door to hide this would probably not be a good idea. It adds too much weight to the door and you will have to most definitely change your spring size to something that is a little bit stronger to cope with the extra weight. So you will have to keep all these factors in mind when thinking about insulating your garage door.