Insulating Your Garage How And Why

Insulating Your Garage How And Why

For many homeowners, the garage isn’t a space that you spend a lot of time in. Typically we just park our car and go in the house. Maybe we’ll unload some groceries or to a bit of clean up, but in most cases, we spend very little time there. In these situations, insulating your garage may not be beneficial to you.

However, if you intend on spending more time in the garage, whether you are converting it into a livable space or if you intend to use part of it as a workshop, then insulation could be very beneficial to you.

Types Of Garage Insulation

When you decide that you want to insulate your garage and you want to learn how to insulate the garage, you first need to decide what kind of insulation would be best for your needs, your skill level, and budget. There are four types of insulation that you could choose from:

  • Fiberglass. This type of insulation is that pink batting that you’ll find between the studs of the wall and your ceiling braces. The large blankets of fiberglass can be put inside these spaces whereas loose fiberglass can be sprayed into open cavities. Fiberglass insulation is available either wrapped or it uses “low-itch” fibers. Both of these products are designed to prevent irritation when being installed.
  • Cellulose. This type of insulation is a loose-fill insulation that is becoming more and more popular among contractors and homeowners. This material is made from recycled newspapers and a fire-retardant mixture. Then it is blown into a wall or the cavities in the ceiling with a special device. These insulation blowers can be found and rented at your local big-box home center. Sometimes you may be able to rent the tool for free if you purchase the cellulose insulation from them.

Celulose Insulation on a Garage Door

This kind of insulation is going to be more difficult to install because most instances, the drywall will already be in place and you’ll want to make sure the insulation is evenly applied. With that said, it is still pretty easy because all you need to do is cut a hole in your drywall and patch the hole when the insulation process has been complete.

  • Rigid Foam. Rigid foam panels (or polystyrene) are especially useful in the garage because they give you a lot of insulation without the bulk or mess that you’d get with fiberglass or cellulose. The rigid foam insulation is also great when you want to insulate a concrete floor or in the basement walls.
  • Spray Foam. New homes generally use spray foam to insulate the walls and ceilings, and it is typically done by a professional when the house is being built or remodeled. In terms of a DIY project, the spray foam is usually reserved for cracks, gaps, and window, door, and vent repair.

How To Insulate A Garage Door Yourself

When you are insulating your garage, it’s always helpful to know where it should go and how to do it! But, that isn’t the only thing you need to take into consideration.

For example, you’ll want to think about the flammable chemicals you house in the garage, as well as any chemicals that will create noxious fumes. Y

ou also want to take into consideration the kinds of noises that will be produced while you’re in the garage. Maybe you’re working with power tools or you just want to blast the Beastie Boys while cleaning up.

You also want to take into consideration the kinds of noises that will be produced while you’re in the garage. Maybe you’re working with power tools or you just want to blast the Beastie Boys while cleaning up.

silicone caulk for garage sealing

With that said, to keep these factors out of the main house and in the garage, you’re going to want to air seal the wall cavities between the walls that connect the house to the garage. Air sealing is basically silicone caulk that you will apply to any obvious holes, cracks, and gaps. This includes the cracks where the studs meet the wall and the spaces where the wall and the floor meet.

After this is done, you’ll want to install the insulation backward. This means the paper (if you are using fiberglass) should be facing the wall, not you.

This is the only wall where you’ll be doing this, because that paper is usually vapor retardant (on the walls that are not connected to the house, you will want the paper facing you). Staple the fiberglass insulation’s paper flanges to the edge of the stud so that the fiberglass can fill the space completely.

Best Way To Insulate A Garage Door

When you come to the part where you’re going to insulate your garage door, you’re going to want to choose the best insulation for the door material, but also what insulation is appropriate for the climate.

  • Steel garage doors can use any type of insulation. Make sure the fiberglass side is touching the door for maximum insulation.
  • Wood frame and panel doors are best suited for rigid foam insulation because it can be cut and fitted to the recesses in the frame. You also have the ability to add an extra layer of the rigid foam for more insulation.
  • Flat doors are best suited to use foam board or reflective insulation. Simply glue or apply a strong adhesive to the door and stick the insulation to it.

It is worth noting that insulating your garage door is going to add some extra weight. This isn’t going to be much of an issue if you have a normal 9-foot wide door.

Rigid Foam Insulation For Garage Doors

However, if you have a larger door, it could put a strain on the opening mechanics. You can remedy that by contacting a garage door professional and having them adjust the spring tension.

On another note, it is very possible for dirt, insects, rainwater etc to seep through your garage door. It is always a good idea to insulate it using some very simple yet non-expensive materials!

If you’re on the fence about insulating your garage, just think about how much more comfortable it will be in there!

While you may not want to turn the garage into your new living room, you will be able to work out there for a few hours and not be affected by the weather very much, nor will the folks inside the house be affected by the sounds coming from the garage. It’s a win-win situation!


​Weather Imaginary

​How To Home Insulation

Leave a Comment: