The Best Garage Door Insulation Kits in 2021
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The Best Garage Door Insulation Kits in 2021

Your garage can be a useful and versatile space if you don’t want to use it for the sole purpose of storing your vehicles. It can be many things such as a game room, den, or even an extra bedroom or living space. Even if you are using it for just storing cars, you can also go the extra mile and make sure those vehicles are well protected.

One of the best ways to do this is to get your garage door insulated. It can keep the temperature regulated and keep things like leaves, twigs, and other debris from getting inside. To help you find the best solution, we have put together a collection of some of the best garage door insulation kits available on the market.

Backyard Boss Best Garage Door Insulation Kits in 2021

PRODUCT FEATURES
US Energy NASATECH (Pre-Cut for 16 Panel) 2 Car Garage Door Reflective Insulation Kit - The Best Garage Door Insulation Kits in 2021US Energy NASATECH (Pre-Cut for 16 Panel) 2 Car Garage Door Reflective Insulation Kit
  • Material: Foam
  • Color: Silver
  • Weight: 8 Pounds
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Reach Barrier 3009 Garage Door Insulation Kit - The Best Garage Door Insulation Kits in 2021Reach Barrier 3009 Garage Door Insulation Kit
  • Material: Plastic
  • Color: Silver
  • Weight: 3.3 Pounds
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Matador EP1323054_02 SGDIK002 Garage Door Insulation Kit - The Best Garage Door Insulation Kits in 2021Matador EP1323054_02 SGDIK002 Garage Door Insulation Kit
  • Material: Polystyrene
  • Color: White
  • Weight: 13.2 Pounds
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Garadry ½ High Garage Door Threshold Seal Kit - The Best Garage Door Insulation Kits in 2021Garadry ½ High Garage Door Threshold Seal Kit
  • Material: Vinyl
  • Color: Black
  • Weight: N/A
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Reach Barrier DD24100 Air Double Reflective Polyethylene Insulation Roll - The Best Garage Door Insulation Kits in 2021Reach Barrier DD24100 Air Double Reflective Polyethylene Insulation Roll
  • Material: Polyethylene
  • Color: Silver
  • Weight: 10 Pounds
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Why You Can Trust Us

I have always been interested in the idea of sealing off my garage door and keeping the temperature in there regulated and comfortable. Since I do all of my woodworking and fabrication in my garage, there have been many hot summer days and cold winter evenings that I spent uncomfortable in there. By far, the best solution is to seal off the door and insulate it to keep the elements from making their way inside.

As a contractor, I have done a lot of work with insulation and all the different ways it can be applied at home. With this knowledge and experience, I can now help you make the right decision for your garage. Keep reading to find the best door insulation kit to protect your garage.

Best Foam Garage Door Insulation Kit

US Energy NASATECH (Pre-Cut for 16 Panel) 2 Car Garage Door Reflective Insulation Kit
    This insulation kit is a heavy-duty option for people who want the most protection available on the market

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Why We Like It: For those who want a simple, elegant solution to garage insulation, the US Energy NASA TECH Insulation Kit is a great option. The foam panels create a large air pocket between the surface of the door and the outside surface of the insulation. It helps trap both hot and cold air and keep it from entering the garage itself.

The foam core included with this kit is some of the thickest available in the industry. At 5/16”, it is a heavy-duty solution to your insulation issues and can help regulate even some of the most extreme weather. The silver reflective backing surface also gives you a clean, finished look that will be sufficient even if you don’t want to put up drywall or completely seal off the door.

Who Should Buy It: People who want some of the best garage insulation available on the market and are dealing with more extreme temperatures.

Best Radiant Barrier Garage Door Insulation Kit

Reach Barrier 3009 Garage Door Insulation Kit
    This kit is designed to be easy to install and helps stave off radiant heat from the sun

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Why We Like It: If your biggest issue in hot weather is proximity to direct sunlight, one of your best options is a radiant barrier insulation kit. The Reach Barrier 3009 Garage Door Insulation Kit is a great choice for people who want to help eliminate some of that radiant energy without completely sealing up their garage. 

This kit helps reduce up to 95% of radiant heat that comes in off the outside surface of a metal garage door. It also keeps that energy from transferring to the air inside the garage. The bubble insulation panels exceed all of the newest fire codes and are pre-cut, so you don’t have to worry about trimming them to the size of your garage door.

Who Should Buy It: People who live in areas with a lot of direct sunlight and want to be able to cut back on some of that radiant heat in their garage instead of completely sealing up the area.

Best Laminate Garage Door Insulation Kit

Matador EP1323054_02 SGDIK002 Garage Door Insulation Kit
    This large insulation kit is meant for 8 to 9-foot doors that need protection from all kinds of conditions

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Why We Like It: The Matador Garage Door Insulation Kit is a clean, classy-looking kit that is just as effective as some of the more unwieldy kits. It is fabricated in such a way that the installation is easy and perfectly cut for almost any standard garage door. The installation doesn’t even require any double-sided tape or glue.

The polystyrene laminate garage insulation panels help stave off both warm and cold air as well as radiant heat from the door itself. Plus, the pre-cut panels are low-profile and won’t block off access to the actual door itself. If you want to keep using your garage door while protecting the garage from the elements, this could be a great option for you.

Who Should Buy It: People who want to keep the look of their garage and have access to the door but still want protection from heat transfer and heat loss.

Best Threshold Seal Garage Insulation Kit

Garadry ½ High Garage Door Threshold Seal Kit
    This kit helps seal up the bottom and side edges of garage doors to keep out drafts and debris

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Why We Like It: One of the most common ways for heat and cold to get into your garage is through the threshold. Oftentimes, the bottom of the door won’t go all the way to the ground, which can leave a large gap. The Garadry ½” High Garage Door Threshold Seal Kit is a great way to seal up those entry points and make sure that heat and cold, as well as debris, don’t make their way into the garage.

The heavy-duty vinyl seals can be secured with the included Garadry adhesive for a long-lasting installation. This kit also comes with a 5-year warranty, so you can be sure that your insulation job will be effective throughout many different seasons.

Who Should Buy It: People whose garage doors have large gaps where debris and air can get in and want to seal that area up to protect the interior of the garage itself.

Best Polyethylene Garage Door Insulation Kit

Reach Barrier DD24100 Air Double Reflective Polyethylene Insulation Roll
    This insulation roll is a good option for those who want a custom insulation roll

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Why We Like It: If you would like to cut the insulation to your specific type of garage door or if you have a door with a less-than-standard size, the Reach Barrier DD24100 Air Double Reflective Polyethylene Insulation Roll is a great choice. 

The polyethylene insulation helps protect from both hot and cold air as well as radiant heat. This roll also complies with all building codes and is acceptable for use in all kinds of situations. Whether you want to seal up your garage door, attic, or pretty much anything else, this could be a good solution.

Who Should Buy It: People who want to customize their insulation to fit their specific garage door and ensure that it is low-profile and attractive.

Insulation Types

Beige Garage Door
Image credits: carywaynepeterson via Creative Commons

In commercial and residential construction, there are many different types of insulation. Knowing the differences between them and their uses can help you make the right decision for your particular type of garage door. The kind you choose will also heavily depend on the weather you deal with regularly and how extreme it tends to be.

Fiberglass

Fiberglass insulation is one of the most common types in homes and businesses all over the world. It is effective and relatively inexpensive compared to other types. It uses fine glass fibers and traps air in small pockets within the sheets, which helps prevent the spread of heat and cold.

Spray Foam

Spray foam insulation is becoming more and more common in houses all around the world. One of the main benefits of foam insulation is that it can be sprayed instead of secured with nails or brads. It allows you to apply it in areas that you might not otherwise be able to put it, and you can get a more complete seal within walls and between studs and joists.

Cellulose Panels

Cellulose panels come in long sheets and can be put almost anywhere behind walls or in attics and basements. One of the advantages of cellulose panel insulation is that it is highly resistant to moisture and fire. It can be used as a fire blocking material as well as an insulator. It makes it a great option for people who want a little bit of extra protection with their insulation.

Radiant Barrier

Radiant barrier insulation blocks heat that builds up on surfaces and then transfers inside a home or garage. It is perfect for buildings or rooms that face the sun and absorb a lot of heat. It can also be incredibly low-profile and fit into almost any decor without being too obtrusive while still holding off heat transfer.

How Insulation Works

Gray Garage Door
Image credits: carywaynepeterson via Creative Commons

Heat always moves from warmer to colder areas until the temperature in both of them is the same. That’s why in the wintertime, it tries to move outside, and in the summertime inside. Insulation keeps heat where it is and helps keep some separation between the two areas.

An insulation’s resistance to this heat flow is called R-value. The higher an insulation R-value is, the more effective it will be at keeping the heat from leaving or entering your home. Insulation works by trapping air within its chemical makeup, and the R-value will be determined by how well it does this.

Depending on where you live and what the weather is like, you will need different R-values for the insulation in your home. For example, if you live in an area with a more mild climate, an R-value of 2 or 3 should be sufficient. However, in areas that regularly experience low temperatures or have hot climates, building codes require insulation to have an R-value of at least 6.

How We Picked

All of the garage door insulation kits that we chose are high-quality and designed to give you the best possible separation between the interior of your garage and the exterior of your home. They all have an R-value of at least two and are sufficient for most kinds of insulation jobs. If your goal is to reduce the number of exterior weather elements getting into your garage, any of these kits will do the job.

We also chose kits with an easy installation process. None of them require the use of special tools or equipment. Many of them can be installed in the afternoon and put up by one person without much experience in construction or home improvement. It makes all of them viable for almost any kind of situation and person.

The Best Garage Door Insulation Kit – Our Verdict

Whether you are trying to increase your energy efficiency or just want some help keeping your garage warm while you work in the wintertime, a good garage door insulation kit can make you much more comfortable. While all of the kits we chose will give you a degree of insulation, our favorite is the US Energy NASA TECH Insulation Kit. Its ease of installation and effectiveness is one of the best available on the market and is sure to keep your garage as comfortable as possible.

By knowing what kinds of insulation kits are available on the market and what they offer, you can choose the one that fits your particular needs the most. Even if you don’t have a lot of experience with DIY projects, the installation process is something that almost anyone can do.

Do you have a favorite garage door insulation kit? Let us know about it in the comment section below, and as always, please share!

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