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How To Insulate A Garage Door

During the cooler months, are you finding the bugs have relocated to inside your garage? Have you perhaps noticed an increase in your power or gas bill? If so now is the time to look into insulating your garage door. The majority of people never stop and think about insulating their garage door because they do not live in the garage, it is simply a place to store the car. In fact, most of us probably do not even pay attention to the garage in general; despite the fact that we walk into it every day to gain access to our cars.

The Importance Of Insulating Garage Doors
No matter how often you go out into the garage, insulating the garage door is very important. For those of you that use the garage to store important keepsakes, such as photographs, having the garage insulated properly allows the keepsakes to be properly preserved. If the garage door is not properly insulated the chances of moisture reaching the keepsakes is high. And we all know what happens when water starts creeping in, ruined photographs!

Learning how to insulate a garage door is also important because it allows you to save money, especially if you have an attached garage. Like the inside of your home if the garage is poorly insulated you will see your energy bills skyrocket. All of the hot or cold air you are putting into your house is slowly escaping through the garage. Insulating the garage door helps lock the air inside the garage allowing your furnace or air conditioner to work more efficiently!

And perhaps best of all insulating the garage door helps keep the creepy crawly things outside where they belong. Every year, once the weather starts to turn cold, all of the bugs and insects that have made a home in your backyard start looking for a warmer place to live. Your house is not only the closest spot; it is also the warmest. Without insulation, the creepy crawlers are able to slither right in. Therefore, if you do not want to share your bed with an eight-legged spider learning how to insulate a garage door is worth it!

How To Insulate A Garage Door


Luckily, learning how to insulate a garage door is not very hard, you just need to have the time and knowledge necessary. Before you can even begin insulating the garage door, you will need to head to your local hardware store to pick up the necessary supplies, mainly the insulation and adhesive. However, the exact supplies you need will depend on the method you choose to insulate your garage door.

Insulating With Polystyrene Foam
Polystyrene foam is a bit stiff, but works as a great insulator. To use this the first thing you will have to do is measure your garage door, this will give you an idea on how much insulation you will need. When picking up this type of insulation you will also want to grab building adhesive which is used for gluing the panels. To glue the insulation to the garage door you will need to measure out each panel and cut out a section of insulation that will fit inside the panel. Glue the insulation to the panel and secure the insulation with a panel bracket directly on top of the foam. Continue this process until all panels have been insulated.
When using a rigid insulation panel like this you need to pay attention to the joints between the panels. If you have a door that has hinging panels then you will need to bevel the edges of each of the pieces of insulation because when the door panels bend at the hinges the insulation will get closer together. The best way to do this is to start the door up and then stop each panel at the tightest part of the arc to measure for the bevel. This should allow you to relieve the edges so they will not interfere with each other as the door moves open.
You will want to keep the edges of the insulation as close as possible at the hinge to stop heat transfer.

Insulating With Polyurethane Foam
This is sold in sheets rather than rolls, so many people find it easier to work with when insulating a garage. Like the method before you will need to measure your garage door to ensure that you purchase enough insulation, you will also need to measure each panel to cut out the right amount of insulation. How this method differs from the polystyrene is how it is installed. After you have cut out the insulation, you will want to use a putty knife to install the insulation along the panels and then secure it in place with aluminum tape.

Weather Stripping Your Garage Door
Once the panels have been insulated, the job still is not done yet; hot or cold air as well as bugs can get in and out of the garage through cracks along the bottom and sides of the garage door. You will also still have a small gap at the panel joints which can allow for heat transfer. To seal the garage door you must use weather stripping. While one layer of stripping will work in most cases, providing a double layer is best. To apply the weather stripping you will need to remove the backing that covers the adhesive side. Apply the weather stripping to the bottom of the garage door. You can then rely on the adhesive to hold or you can use hammers and nails to keep it in place. Personally, I think the hammer and nails are a better option, longer lasting hold!

Ready made garage insulation kits are another option that homeowners have. While these might sound great, they can be a disaster. If you do opt for a ready made kit, you are going to need to make sure that you follow the manufacturer’s instructions to the letter. Not following the instructions can cause disastrous results, the worst being that your garage door is improperly insulated or even destroyed.

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Are you looking for up to date information on Garages, Floors, and Coatings? If so, this is the place you need to be.

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