Best Insulation for Garage Door


Garage doors are affected by the temperature a lot and they can get very hot or cold depending on the weather. The utility bills trouble a lot of people because in spite of using heaters during winters and air conditioners during summers, the results are not up to the mark. This is because the garage doors are not popularly insulated and the temperature gets disturbed because of that. A garage insulation kit is very helpful in preventing such situations. Using a garage kit can help you keep the temperature of your house according to your requirement. This post will give you information about the best garage door installation kit.

Buying Guide:

Not all garage insulation kits are the same, and thus it is very important to consider the factors that make a good purchase. Because your garage door is part of your precious property, you must first analyze all the factors and then make a decision according to your requirements. Following are the factors that play an important role in the selection of a garage door:


Garage insulation kits are available in different materials including fiberglass, rigid foam, spray foam, and cellulose. All of these materials have their own pros and cons. It ultimately depends on your choice and requirements. Materials also vary according to cost, so it is important to consider your budget as well.


Garage insulation kits are of different sizes and it doesn’t mean that all the kits can easily fit onto your garage door. It is very important to measure the height and width of your garage door so that you get the insulation kit of the exact size. Some of the garage insulation kits are not easy to fit and thus it is very important to measure them so that it is easy to install.


Make sure that the garage insulation kit you’re going to install is not very heavy as it will increase the weight of the garage door significantly. The extra weight of the door can make it difficult to use the door and can be irritating for you. Therefore, you must contact a professional who can guide you about the operation of the door after you’ve installed the garage door insulation.


The R-Value of a garage door insulation kit is the measure of thermal resistance or heat. The R-value is thus a measure of the transfer of heat from hot to cold areas. Insulation is more effective if the R-value is high. The R-value is dependent on other factors such as the density and thickness of the insulation. To buy the best insulation for garage door, you must go for the one that has the highest R-value.


Good quality of insulation will cost you more than a flimsy one. The higher the quality of a garage door insulation kit, the higher its price is. But before choosing an insulation kit, you must consider the cost vs. yield of the product.


The garage door installation kits are available in various types and they differ from each other according to their shapes, thickness, durability levels, life spans, cost per size, and various other factors. Following are the three most common types of the best insulation for garage door:

Reflective Foil:

Reflective foil is usually available in rolls and has a thickness of around an inch and a half. You can purchase the reflective foil in either single or double foil according to your requirements. Between the two aluminum foils is a layer of polyethylene foam with double foil insulation. This type of garage door insulation is not very attractive but it is very useful especially if you live in a hot climate. Its R-value ranges from 3.5 to 6.

Polystyrene Foam:

The polystyrene foam is available in the form of large sheets and it needs to be cut in a size equal to that of the garage door. The material is very hard and it has a high insulating value despite of it being thin. Also, the material is very rigid as compared to reflective foil and provides better insulation as well.

Panel Kits:

If you want your garage door to look beautiful even after installation, you must go for panel kits. This type of garage door insulation is made up of plastic laminated polystyrene or fiberglass and has pre-cut panels that fit easily into the garage door frame. Fiberglass is more resistant to water and mold but it provides less insulation as compared to polystyrene foam. The panel kits are easier to install as compared to others

How to Install Garage Door Insulation?

Installing a garage door is not as difficult as it seems. You can easily do it yourself, but having the help of another person will make things easier for you. Following are the steps that you have to follow in order to install garage door insulation:

1. Prepare the Surface:

A garage door insulation is installed on the inside portion of the door, and thus you don’t need to worry about the outside surface. Installation of an insulator requires an adhesive on the surface and for that you’ll have to clean the dust off the surface first. Make sure that the door is free from dirt and grease otherwise it will be very difficult for you to install the insulation. If the garage door is dirty, you can use degreaser or acetone to clean it and then wipe it off with warm water. After the door is dried, it is ready for applying the adhesive.

2. Apply Adhesive:

If you want a strong adhesive, you must consider a double-sided tape which is available with numerous Velcro squares. To install the adhesive, you must follow the instructions provided on the manual. If we talk about the whole garage door installation process, the application of adhesive is the lengthiest task. The tabs will have two adhesive sides, you’ll have to remove the protective covers from one side and stick them to the door. Finally, remove all the protective covers from the tabs once they are sticking to the door.

3. Trim the Panels:

It is imperative to measure the panels and leave some inches before cutting to be on the safe side. Before exposing the panels to the adhesive, it is very important to make sure whether the panels fit or not. Before installing the insulation on the top of the door, ensure that it is exposed to the top rows of the adhesive squares. After this, cut the panels and leave a few inches at the end so that the panel supports are wrapped up properly to the garage door.

4. Install Radiant Barrier Insulation Panels:

When you install the top rows of adhesives and then put panels on them, you’ll be able to stretch the material before you push it to the adhesive tabs. This will eliminate any wrinkles to appear after you’re done with the installation. Once you’ve installed the top part, you will see that the lower part of the panel is removed from the way and it is exposing the adhesive on the tabs that are remaining below. Now stretch the lower portion and bring it back into place and apply pressure on the adhesive squares so that they stick tightly on to the surface.

Best Garage Door Insulation Kits:

1. Owens Corning Insulation Garage Door Kit:

The Owens Corning Insulation Garage Door Kit is a comprehensive one as it contains 8 durable R-8 fiberglass insulation panels. These fiberglass panels have a hard-washable white vinyl surface. It has a fastening system that allows you to hold the panels in place in a quick and secure way. There is enough material in one kit to use for a garage door of around 9 feet wide and 7 feet 8 inches tall. The kit is designed to be used for metal garage doors and it fits smoothly on the exposed channel of the door. The garage door insulation kit reduces the noise level to 20 percent and is very easy to install. It takes less than one hour to install the garage door insulation and you’ll only need a utility knife, tape measure, a marker, and a straight edge. The vinyl surface can be cleaned easily using a detergent of a mild nature. It is a flexible material and it resists denting too.



  • It has a neat and clean look.
  • The installation takes less than an hour.
  • It can be easily cleaned with a mild detergent.
  • ​It adds unwanted weight to the garage door.
  • ​The pins included do not hold the panels securely.

​​2. ​Matador Insulation Kit:

​The Matador insulation kit is the most popular one and the reason behind this is that it is very easy to install. You won’t need any special tools to install this garage door insulation kit and it will end up as a bright white insulation that will look cool and will be easy to clean as well. The Matador garage door insulation kit is available in two different sizes and has an insulation value of R-4.8. There are scored panels for easy installation and the bright white surface of the insulation kit is very easy to clean. The garage door insulation kit keeps your house warm in winters and cool in summers and makes sure you use less energy to maintain a good temperature.The two sizes that are available in the kit are good for any type of garage door; one size fits a 7 feet tall and 8 to 9 feet wide garage door while the other is suitable for 8 feet tall and 8 to 9 feet wide garage door. The garage door insulation kit has a great finish and it allows you to turn your garage into a livable area that is clean and well finished.



  • ​It is bright white and easy to wash.
  • ​It is easy to install and requires no tools.
  • ​It looks neat and attractive.
  • ​It isn’t suitable for doors that have more than 4 or 5 panels.


​If you’re looking for the best insulation for a garage door, you need to first determine your requirements and then make an informed buying decision. Garages without proper insulation can increase the thermal load on your conditioning system and can increase your utility bills. If you want to reduce your utility bills effectively, you must consider the best garage door insulation kit. In this post, we compiled the top picks for you that not only add to the aesthetics but also help in saving energy.

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