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7 Best Garage Door Insulation For Hot Climates Reviews in 2023

Do you get frustrated trying to find the finest garage door insulation for hot regions but need help finding any? It makes sense, given the current number of things. Finding the ideal garage door insulation for warmer climes this year may also be more challenging due to marketing methods. The news is excellent! Today’s homeowners want more from every item they use in their homes, including garage doors. In addition to modern and exquisite design, customers also want a door that offers excellent insulation since insulated garage doors have several advantages, such as longevity, energy efficiency, and higher house value.

Prefabricated laminated EPS insulation panels applied to the rear of the doors provide OEM garage door makers with a quick and affordable option to add insulation. As a result, producers are free to concentrate on what they do best rather than worrying about making the insulation themselves. The legwork has already been done for you by us. After looking through a wide range of brands and goods, our professionals were able to pinpoint the best ones available. These are what best garage door insulation for hot climates are:

Best Garage Door Insulation For Hot Climates (Our Top Picks)

#1. NASA TECH White Reflective Foam Core 2 Car Garage Door Insulation Kit (Recommendable)

#2. US Energy NASATECH 2 Car Garage Door Reflective Insulation Kit (Preferable)

#3. Reach Barrier 3009 Garage Door Insulation Kit (Perfectly Designed)

#4. Commercial&Home Garage Door Insulation Kit By MWS (Most Loved)

#5. Matador EP1323054_02 Garage Door Insulation Kit (Proper White Finish & Affordable)

#6. AES Supershield 2 and 1 Car Garage Door Insulation Foam Core Kit (Classy)

#7. USEP Overhead Door Reflective White Double Car Garage Door Insulation Kit (Budget Friendly)

Best Garage Door Insulation For Hot Climates (Reviews & Buying Guide)

There are a few elements that might assist you in choosing the best garage door insulation for hot climates from among the hundreds of possibilities offered in internet marketplaces. Before making a purchase, you should consider other aspects besides the item’s warranty and price. Before purchasing garage door insulation for hot regions, our specialists advise you to evaluate our below-giving list:

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#1. NASA TECH White Reflective Foam Core 2 Car Garage Door Insulation Kit

best garage door insulation for hot climates

This NASA Tech white reflective foam core insulated garage door in a hot climate is made for a two-car garage door and is 18 feet wide by 8 feet high. Additionally, this insulation is lightweight, much like the other NASA tech insulation on the list. Additionally, its R-value is 8.

There are four rolls, each measuring 2 feet and 18 feet in length. This white foil foam will help block solar radiation and keep your garage cool when it’s hot outdoors. After installing the Kit, you’ll see a temperature reduction of 10 to 20 degrees.

You receive heavy-duty double-sided tape, a razor, and a squeegee for the simple Installation. Additionally, it includes simple-to-follow directions. It should take roughly two hours to complete a two-car door garage. You need to apply extra tape during Installation since the amount needs to be increased. This additional tape requirement, meanwhile, only applies to wider doors and will only apply to some.

  • Made in the USA.
  • Insulation Kit measurements are 18 FT width x 8FT height
  • The Kit also acts as a sound deadener
  • This Kit comes with four Foil Foam Core Insulation rolls, side tape, a razor, a squeegee, and installation instructions
  • Ideal for extreme weather conditions


  • Best installation kit and instructions in the test
  • Nice workable lengths
  • Blocked sound and temperature transfer


  • Strips weren’t cut squarely from the factory

#2. US Energy NASATECH 2 Car Garage Door Reflective Insulation Kit

garage door insulation to keep heat out

The US Energy NASATECH 2-vehicle garage door reflective insulation kit includes four remarkably lightweight insulation rolls. The panels have a thickness of around 14 inches. Additionally, it has an R-value of 8 and enough material to accommodate a huge double door.

But how well does an insulated garage door in a hot climate perform in terms of cooling your garage? It effectively cools the garage and has a foam core that is 5/16 inches thick. When the weather was well above 90 degrees, the garage was around 15 degrees cooler.

The panels are lightweight, as previously mentioned, which makes installation simple. To make them suit your garage door’s measurements, you may trim them with scissors. With the instructions supplied, Installation takes around 4 hours.

Key Features
  • Made in the USA
  • 5/16 inch thick White Foam Insulation
  • Lightweight & Non-Toxic Kit
  • Puncture, Crush, and Waterproof
  • The insulation kit is entirely safe and made from non-toxic materials
  • The Kit can reflect up to 99.75% of heat


  • Immediately cut down on noise
  • Simple Installation
  • Improved comfort inside the garage


  • 4-foot strips were not long enough

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#3. Reach Barrier 3009 Garage Door Insulation Kit

garage door insulation to keep heat out

Compared to our top recommendation for garage door insulation to keep heat out, the Reach Barrier 3009 garage door insulation kit is much less expensive. But it’s effective at cooling a garage, especially if the door faces west. Reflective insulation polyethylene is used to make this insulation package. Between the two layers of reflective polyethylene are two layers of 5/32-inch barrier bubbles. With this in place, you should feel a 20-degree change in temperature, especially during the summer.

Eight reach barrier insulation panels make up this insulation kit’s packaging. A garage door cleansing sponge and bond adhesive tape are also included. The Installation will be simple thanks to the provided, easy-to-follow installation instructions. The insulation kit is adequate for a garage door that is 8 square feet. If your door is larger, say 16 feet, you will want two insulating kits. The adhesive pads are also not particularly sticky.

  • Produced in the USA
  • The Kit is around 18 FT (WIDE) x 7 FT in size (HIGH)
  • Contains premium double-sided tape
  • It works very well as a sound deadener
  • Class 1 Class A Fire-rated
  • This Kit has straightforward installation instructions and is easy to use
  • Useful in both hot and cold climates


  • Thicker than other radiant barriers
  • Blocks sound well
  • Minimal weight offers plenty of installation options


  • Not a garage door–specific Kit
  • Doesn’t come with an installation kit

#4. Commercial & Home Garage Door Insulation Kit By MWS

best garage door insulation for hot climates

Between two layers, one layer of closed-cell foam is adhered (1 layer of highly reflective metalized aluminum polyester film and one layer of durable textured white vinyl facing). Insulation with industrialized strength that is lightweight but strong enough to retain staples without ripping. Does not collapse, dissolve, or compress.

Safe to handle best garage door insulation does not contain fibers, is non-toxic, and does not require the Installation of respirators or protective clothes. Easy to cut with a utility knife or pair of scissors, maintenance-free, and installs more quickly than fiberglass. Just use a staple, nail, glue, or spray adhesive to keep it in place! No mess, no irritating fibers.

Not impacted by humidity or wetness. Prevents condensation and doesn’t encourage the formation of mold, mildew, or fungus. Does not encourage rats or insects to build nests. Flammability-free and flame-resistant.

Reduces the strain on your home’s heating and cooling systems, keeping it warmer in the winter and cooler in the summer, saving electricity. All year long, it may drastically lower utility costs. Soundproofing benefits are also provided when applied to walls, ceilings, and floors. Depending on utilization, it can raise the value of your entire home.

  • Made in the USA
  • Comes in various size
  • Excellent to fit
  • Affordable cost
  • Contains tape that sticks on both sides


  • Highly recommended for hot areas
  • Simple to install
  • Fits perfectly
  • Improves the comfort


  • Not a good colour

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#5. Matador EP1323054_02 Garage Door Insulation Kit

best garage door insulation for hot climates

There are eight high-impact Polystyrene laminate panels on the Matador EP1323054 garage door insulation to keep heat out. These panels are more flexible than the cell foam panels included in typical insulation kits. As a result, installing this Kit is simpler than others.

One of the reasons we included it on the list is because of how simple its Installation is. The second is that it does its functions like the other insulation kits on the list. It will assist in keeping your garage cool on sweltering summer days. There should be a 6-degree temperature differential as well.

It not only keeps your garage cool in the summer but toasty in the winter as well. It will take you around an hour to complete the Installation. Additionally, it works wonders to muffle noise. This insulation package only maintains temperatures as high as others on the list. For the price, it is still a fantastic choice for your garage door.

  • Produced in the USA
  • Reflective/white foam core insulation that is 5/16 inches thick. Simple to install, mold, and bend
  • Non-toxic and lightweight garage door insulation Kit
  • The equipment is impervious to water, crushing, and punctures
  • There is a Class 1 Class A Fire Rating on the Kit
  • It is constructed of sustainable materials


  • Effective at keeping noise out and warm air in
  • Installation kit included quality tape
  • Choice of surfaces when installing


  • The white surface was a bit too much

#6. AES Supershield 2 and 1 Car Garage Door Insulation Foam Core Kit

best garage door insulation for hot climates

The choice from the sector’s most well-known and dependable brand follows next. It is a core foam kit that has the appearance of foil. Additionally, this AES Supersheild insulation system successfully maintains the ideal temperature in your home garage by reflecting light from both sides. The Kit has excellent thermal performance and contributes to noise reduction.

This one is the best garage door insulation kit available in terms of R-value. It is safe to use the gear in harsh winter and summer weather thanks to its high R-value of over nine. You can solve this in less than an hour because the Installation is so straightforward. Your energy expenditures will be significantly reduced, by up to 20%, when implemented properly. You will also gain from a considerable decrease in radiant heat and a high reduction in surface heat with this insulation kit.

Last but not least, if you’re looking for an insulation kit that’s easy to maintain, reduces noise in your garage, and maintains a pleasant temperature in summer and winter, this is the package for you.

  • The Kit reduces irritating and unwanted noises
  • Safe to use in both hot and cold weather
  • Installing the Kit is simple, even for beginners


  • Lightweight insulation kit that is highly flexible
  • The Kit is sound and waterproof
  • It possesses high radiant heat reflection properties
  • Easy to maintain and install
  • High R-Value and E-Value


  • Soundproofing properties could be better

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#7. USEP Overhead Door Reflective White Double Car Garage Door Insulation Kit

garage door insulation for hot climates

Following that on our list is The USEP Overhead Door Double Car Garage Door Insulation Foam Core Kit. It is a reflective kit with dimensions of approximately 16 feet by 7 feet. The Kit’s distinctive design provides complete coverage for double-vehicle garage doors. This Kit is created and produced in the United States, much like the item before it on the list.

The insulation package has a reflective foam core and is very light, water-resistant, and flexible. It is among the greatest on the market and easy to fix thanks to all these features and qualities. It may be fixed precisely in under 60 minutes without any specialized equipment.

Excellent thermal characteristics will result in a 30% reduction in energy expenses. If placed correctly, the Kit will also muffle outside noises and provide you with a quiet workspace. In both the extremes of summer and winter, the package keeps your garage at the appropriate temperature. In conclusion, the best garage door insulation materials include inefficient insulation and everything you need for a hassle-free installation.

  • High R-Value up to 8
  • Looks elegant after Installation
  • The Kit will not add much weight to your garage door
  • It will not affect your door motor


  • Installation is brief
  • Thermal properties are excellent
  • Safe to use as it includes non-toxic materials
  • It comes with installation instructions and the required hardware


  • A bit more expensive than the others

Why Is My Garage Door Insulated?

You may wonder if insulating your garage door is important before we get to the evaluations. If you live in a hot region, it might seem redundant to insulate your garage door, but doing so has advantages.

First off, reflective materials are generally utilized for insulation in hot climates. These substances deflect heat from the sun that would otherwise enter the garage. This implies that the garage’s interior remains cooler even in extremely hot weather.

How to install insulation on a garage door

It’s not as difficult as you would imagine installing garage door insulation. The procedures entail;

Clean the door first.

If the door isn’t clean, the first thing to do is clean it. The insulation may get contaminated and less effective due to dirt and smudges.

Measure the door on the second step.

The following action is to measure your door. You may use this to determine how much insulation you need for the door. This is crucial information if you utilize your garage for purposes more than just parking cars. Keep it cool if you use it as a workspace or a living space. And installing garage door insulation is one method to go about it.

Get the insulation in the third step.

You desire door insulation composed of reflecting material for hot regions. Aluminum foil is a possible option.

Fourth, take the R-value into account.

To demonstrate the effectiveness of the insulation kit, the R-value is employed. Usually, this number falls between 3 and 9. It would help if you had an insulation package with a higher R-value of about 7 or 8 for warm or hot areas.

Fifth step: trim the insulation.

Typically, insulation kits come in coils or panels that may be sliced. Cut the insulation material according to the door’s dimensions at this step of the insulation procedure.

Installing the insulation is step six.

The cut insulation panels are put inside the door as the final stage. You will need an adhesive for this step to adhere to the panels. The majority of insulating packages contain adhesive. However, depending on your door size, you could need more adhesive.

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Advice for hot climates: garage door insulation

For warmer regions, use a radiant barrier-insulating material. These can be reflective materials that reflect solar radiation, such as aluminum foil or mylar. Certain folks may choose cardboard or another wood garage door insulation kit. These, however, could be more efficient and might be dangerous in a fire.

To create a space for air between the door and the insulation when putting the insulation, remove a few insulation strips. The insulation needs to cover the whole door, from top to bottom. The distance between the door and the insulation should be at least half an inch.

Things To Take Into Account Before Choosing The Best Garage Door Insulation For Hot Climate

What factors should you consider when choosing the finest garage door insulation kit for hot weather? There are various factors to think about, such as;

Size of an insulation kit

Panels of various sizes are available in insulation kits. You might have to trim the panels if your garage door is a certain size. An insulation package that matches the size of your garage door is ideal. Larger insulating panels are best if you have a large door.

Insulation kit components

How can a garage door be insulated the best? Using an insulation kit composed of radiant light-repellent material is the best approach to insulating against heat. Garage door foam insulation kits are made from a variety of materials.

The most used material, fiberglass, is strong and has a good R-Value of over 7. The biggest drawback of it is that it is difficult to cut off. However, it is inexpensive compared to other materials of the same kind.

Another substance used to create insulation kits is spray foam. This substance is sprayed in the form of foam. Kits for spray foam insulation are inexpensive. However, they are less efficient than some alternative materials.

The R-value

The ability of an insulating material to deflect heat away is gauged using the R-Value. The better a substance is in reflecting heat, the greater its R-value. Therefore, a high R-value is advised for insulation in hot climates. A lower R-value will be optimal if you are insulating a garage door for the winter. R-value 7 or greater metal garage door insulation kits are the norms. And you want an R-Value of 7 or above.

NRC score

The main purpose of garage door insulation kits is to insulate your garage door, not to reduce noise. However, insulation kits are designed with the ability to reduce noise. If you think this is relevant, look out for the NRC rating of the insulation kit. The noise reduction coefficient, or NRC, gauges how well an insulation kit dampens outside noise. If you wish to block out noise, an NRC value of 0.5 and above is optimal.

Degrees of toxicity

The poisonous chemicals that are occasionally used to make insulation kits are bad for your health. Checking the chemicals that are utilized to produce an insulating kit is crucial. Check for toxicity certificates from the appropriate authorities, which is more significant.

Weight and ease of Installation

The weights of various kinds of garage door insulation vary. The difficulty of Installation will depend on how large an insulation kit is. Lightweight kits are typically simpler to install. Therefore, it’s crucial to consider a kit’s weight. Second, including extras like sticky tape will affect how simple it is to assemble a kit.

Insulating garage doors using polyurethane vs. Polystyrene

Polystyrene and polyurethane are the two most typical materials used for garage door insulation. It is vital to understand the distinctions between the two doors to compare them and determine which is ideal for your home.

Garage Door Insulation using Polystyrene

Many garage doors employ polystyrene insulation, which is also supplied in the aftermarket garage door insulation kits sold at well-known stores. This insulation is provided by stiff polystyrene panels with a vinyl back that are either installed inside your single-layer garage door or inserted between the steel layers of your garage door. Garage doors with polystyrene insulation between two steel layers will operate more quietly and efficiently than doors without insulation, but they are not as energy-efficient as doors with foam-injected polyurethane.

Insulation for polyurethane garage doors

The material used for this type of insulation is a polyurethane foam that is injected between the steel layers of the door and then expands to cover every crevice and crevice. In addition to boosting the door’s strength and making it less prone to dents, the foam attaches to the door’s frame as it expands.

If your garage door serves as the main entrance to your home and you live in a very cold or hot area, garage doors with polyurethane insulation will offer the best level of sound isolation and climate management.

FAQs About Best Garage Door Insulation

Should I insulate my garage in a hot climate?

Insulation lowers air loss and stops air from entering, which helps regulate the temperature in your garage. Insulation is essential since garages are among a home’s weakest areas for energy efficiency.

Will insulating the garage door keep the heat out?

Your garage may stay an average of 10 to 12 degrees warmer in winter and up to 20 degrees cooler in summer by adding insulation to the inner channels of the door. Noise transmission is also lessened by an insulated garage door.

What kind of insulation should I use for my garage?

Insulation with an R-value of between R-13 and R-21 is often advised. Your home’s thermal barrier may be strengthened by adding insulation to external walls, particularly garage walls that are linked to living areas. This will assist in enhancing R-value. A greater R-value is required if you’re insulating the garage ceiling.

Is foam or fiberglass insulation better for a garage door?

It only seems logical that fiberglass, which is frequently used to insulate homes, might have a similar impact on a garage door. This dense, fibrous material has a high R-value, making it perfect for insulating garage doors as well as walls, floors, ceilings, and attics.

What materials are commonly used to insulate garage doors?

Garage doors with wooden frames and panels require strong insulation, such as foam board. You may insulate metal garage doors with any kind of material. Fiberglass insulation batts are a cost-effective choice. With DIY garage door insulation kits, insulating a garage door may be made much simpler.


These are some of our suggestions for the insulation of your garage door. Among our additional services is garage door repair. You must first determine the type of garage you have before discussing garage door insulation for hot regions. If your garage is tied to your home’s HVAC system, an insulated garage door is only necessary.

You should insulate your garage if it has an air-cooling system of its own or is linked to a room that does. An insulated garage door can also be installed in an attached or detached garage that is not linked to the HVAC system, but it should have a lower R-value rating.

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