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6 Best Garage Door Insulation Kit For Hot Climate: Self-Adhesive, Fireproof, And Energy Saver

Do scorching summers transform your garage into an intolerable heat chamber? Not to worry! In this post, We’ll provide you guidance on how to select the ideal garage door insulation kit for hot climates. 

Whether you use your garage for a workshop, a gym, or just to park your car, it must be kept cool and cozy. A top-notch Insulation Kit For Hot Climate serves as a barrier, keeping the sweltering heat out of your room.

It not only aids in preserving a comfortable temperature but also lowers energy expenses and shields your belongings from any heat damage.

So, if you’re tired of stepping into a sauna every time you enter your garage, read on as we unveil the top options for the best garage door insulation kit for hot climates. Stay cool, stay comfortable, and reclaim your garage oasis.

You may Also Need: 7 Best Garage Door Seals For Uneven Floor 2023

Buying Guide

Selecting the proper insulation package is crucial for keeping your garage cool and pleasant in hot temperatures. A thorough purchase guide is provided below to assist you in making a decision:

Insulation Kit For Hot Climate


Understanding Thermal Resistance R-Value measures the thermal resistance of the insulation material. The higher the R-Value, the better it resists heat transfer. When selecting an insulation kit, look for a high R-Value to maximize the temperature control inside your garage.

Here’s a table showcasing different R-Values and their corresponding level of insulation:

R-ValueInsulation Level
R-8 to R-12Good
R-13 to R-19Better
R-20 and aboveBest


Choose Wisely Consider the type of insulation material used in the kit. Common options include:

  • Fiberglass: Provides good thermal insulation and is cost-effective.
  • Reflective Foil: Ideal for reducing radiant heat, but may not offer substantial insulation.
  • Foam Board: Offers excellent thermal resistance and is easy to install.

Compatibility: Sizing and Fit

Make sure the insulation kit is appropriate for your garage door’s size and style. To determine the proper fit, carefully measure the dimensions. For varied door sizes, some kits offer customisable options.

Installation Ease: DIY or Professional Help

Consider your DIY skills and the complexity of installation. Some kits are designed for easy installation, while others may require professional assistance. Choose accordingly based on your comfort level and available resources.

Durability and Maintenance

Choose an insulating kit that can tolerate high temperatures, withstand moisture, and be long-lasting. Additionally, consider maintenance requirements because some materials could demand recurrent care.

Also Check: 6 Best Garage Exhaust Fans 2023

Best Garage door Insulation to keep heat out

NASA TECH Garage Door Insulation Kit, the ultimate solution for transforming your garage into a cool and comfortable oasis.

Designed specifically for two-car garage doors measuring 18ft (wide) by 8ft (high) {Also fit 18×7}, this kit is a game-changer. With an impressive R-Value of 8.0, it provides excellent thermal resistance, keeping the heat outside where it belongs.

The white reflective foam core ensures maximum insulation, reflecting the sun’s rays and maintaining a cooler temperature inside.

The improved heavy-duty double-sided tape guarantees a secure and long-lasting installation. The kit includes everything you need: four rolls of 2ft x 18ft white/foil foam core insulation, heavy-duty double-sided tape, a razor, a squeegee, and easy-to-follow instructions.

Rest assured, this kit is proudly made in the USA, ensuring top-notch quality. We’ve tested numerous insulation kits, and this one stands out as one of the finest.

Don’t let the heat ruin your garage experience; invest in the NASA TECH Garage Door Insulation Kit for hot climates and enjoy a cooler, more enjoyable space.

I ordered this and it took me a while to install it. The insulation works very well and stops a lot of radiant heat from my garage doors. They face the west and have full sun 3/4 day in the summer. It has drastically reduced the heat from the doors. I would order again. Oh, and the customer service is fantastic!

~ Russell Petry (Amazon Customer)


  • Installation is easy
  • Great results in the summer
  • Waterproof, Vapor Barrier and Radiant Barrier


  • The adhesive isn’t aggressive enough.
  • The source batching for the panels is not consistent.

There is no better way to beat the heat than with the Reach Barrier 3009 Kit Garage Door Insulation. This package uses cutting-edge bubble barrier and reflective insulation to block up to 95% of radiant heat from entering your garage.

This insulation offers high thermal resistance in panels made of two layers of 5/32-inch barrier bubble bonded between two layers of reflective polyethylene. It is a hassle-free option that not only keeps your garage cool but also needs no maintenance.

The Reach Barrier 3009 Kit surpasses modern fire regulations, ensuring both comfort and safety. The simple to use and pre-cut panels make this kit easy to install.

The kit includes eight Reach Barrier(TM) bubble insulation panels, permanent bond adhesive tape, a garage door cleaner sponge, and an easy-to-follow instruction guide.

I am currently using this kit in my own garage and couldn’t be happier with the results. Say goodbye to the sweltering heat and invest in the Reach Barrier 3009 Kit Garage Door Insulation for hot weather and more enjoyable garage experience.

This is a must have for any garage door. The hot Florida Sun hits my garage door in the morning which really heats up the space. I noticed an immediate difference once I installed them. They were super easy to install – girl power! Buy immediately!!!

~ Roberta M Johnson (Amazon Customer)


  • Keep the garage warm during cool winter months
  • Requires No Maintenance
  • Easy To Use And Install
  • It’s cheap and lightweight


  • Fitting of uneven panels is a challenge
  • Adhesion issues with double-sticking tape in some panels

INSULATION MARKETPLACE SmartSHIELD garage door insulation kit, the ultimate solution for creating a cool and enjoyable environment.

This bestselling product on Amazon offers a range of key features that set it apart from the rest. Available in various sizes, you can choose the perfect fit for your garage door during purchase.

The kit boasts an impressive ability to reflect 95% of radiant energy, effectively reducing the amount of heat transferred into your home.

Thanks to its 3mm closed cell polyethylene foam, this kit provides excellent insulation without compromising on durability. Sandwiched between highly reflective engineered foil on both sides, it ensures maximum efficiency.

Installation is a breeze, as it is easy to install, easy to cut, and lightweight yet strong. Additionally, it is unaffected by humidity and moisture, preventing condensation and ensuring long-lasting performance. Rest assured, this kit is non-allergenic and will not irritate your skin, eyes, or throat.

Don’t let the summer heat take over your garage; invest in the INSULATION MARKETPLACE SmartSHIELD garage door insulation kit for a cooler and more comfortable space.

I’m from the sunshine state of Florida, my warehouse door can easily get passed 120° F I’m a summer day. I did half the door last night and ran out of insulation, had to order another roll since I was short. Today at noon I measured the temperature of both halfs of the garage door and there was a 24° difference on the insulated vs not-insulated!!!

~ Quessoo (Amazon CUstomer)


  • Excellent heat reflection
  • Easy to install and cut
  • Wide range of available sizes
  • Lightweight and strong construction


  • May require additional adhesive for secure installation

Are you tired of a freezing cold garage in the winter and a scorching hot one in the summer? Look no further than the Matador SGDIK001 Garage Door Insulation, the ultimate solution for transforming your garage into a comfortable space all year round.

This insulation kit is packed with incredible features that will impress you from the moment of installation. The best part? No tapes, glues, or pins are required for installation, making it a hassle-free process.

With its ability to keep your garage warm in the winter and cool in the summer, you can finally utilize your space for various activities, such as a workshop, rec room, or exercise area.

The bright white surface is not only visually appealing but also easily washable, ensuring a clean and fresh look at all times. With a complete installation time of less than one hour and no special tools required, you’ll have your garage insulated in no time.

The R-value of 4.8 at 75 degrees Fahrenheit guarantees excellent thermal resistance. Say goodbye to extreme temperatures and hello to a more comfortable garage with the Matador SGDIK001 Garage Door Insulation.

Invest in this garage insulation kit for hot climates and enjoy a truly versatile and enjoyable space.

Love this, looks way better than the foil stuff surely would. Was very easy to install. Sure, you can’t help getting styrofoam everywhere when cutting but, comes with the territory, not too difficult to clean up at least. I didn’t do an actual test but am happy knowing just by common sense that it’s a temperature improvement over not having it. Super happy with purchase, highly recommend!

~ Mongo65 (Amazon Customer)


  • Easy to cut with a utility knife.
  • Noticed a big difference in cold weather.
  • Installation does not require tapes, glues, or pins
  • Panels already scored for easy installation


  • This foam is a little fragile

The Foam Core FOIL Garage Door Insulation, the perfect solution for creating a comfortable environment in hot climates. This insulation kit is packed with features that will make a significant difference in your garage.

Designed specifically for double car garage doors, it fits a variety of popular sizes, including 16×7, 16×8, 17×7, 17×8, 18×7, and 18×8. With an impressive R-value of 8.5, this insulation provides excellent thermal resistance, keeping the heat out and maintaining a pleasant temperature inside.

The kit includes four rolls of 24-inch wide x 18-foot long double-sided foil foam core material, ensuring complete coverage for your garage door. The water-proof, long-lasting 1/4-inch foam core material guarantees durability and effectiveness.

Say goodbye to sweltering summers and embrace a more comfortable space for your hobbies, projects, or storage needs. Upgrade your garage with the Foam Core FOIL Garage Door Insulation, the ultimate solution for hot climates.

This is the first time I have tried insulating a garage door and I must say, I am extremely impressed with this product. Very easy to use, and all you need is to dedicate a couple of hours to measure the panels and cut them to the measurements.
Their customer service is also extremely good. I ran out of the two sided tape and Mr. Michael Davis responded to my email within an hour and sent a new roll free of charge.

~ AlbertoR (Amazon Customer)


  • Best R-Value of 8.5
  • Plenty for a standard 2-car garage.
  • Installation is easy
  • Comes with the tools needed to install it and good instructions.
  • Best Customer Service


  • Some panels do not stick

The US Energy Insulation kit is good at reducing the electricity bill. Straightforward installation and was able to do the job solo, but waiting to see how the adhesive holds.

The instructions do state that you need to give the tape more time in temps below 70F, which it is, but I felt like the ends kept wanting to come up. Hopefully, it will hold, but if I have to go back with additional adhesive in a few spots later on I won’t be surprised or upset as long as it’s not a widespread issue.

I have a side entry door that has some pretty large gaps that I still need to address before I feel like I can give a truly fair assessment of how well it holds in heat during winter and cool air in the summer. I’m more concerned with performance in the summer since we get some pretty consistent high temps.

I installed this product over a 3-day period. On the first day, I thoroughly cleaned the garage door with water and a Simple Green degreaser allowing it to dry overnight. I had to remove the hurricane braces which was a pain but manageable with only 1 person.

The tape went up the 2nd day and was allowed to dry overnight. I had some tape left over – If I could do it again, I would have used two strips for the vertical pillars. I cantered the tape where I could have put 2 strips vertically. Seems plenty strong as is especially with the hurricane bracing holding it up.

I have a south facing garage and this insulation really makes a big difference. It’s still warm in the summer, but you don’t get that sizzling hot radiant heat from the doors. It’s great. Totally worth it.

~ fauxbot5000 (Amazon Customer)


  • All-In-One Kit Contains everything you need to insulate your Garage Door
  • Durable and easy to install
  • The foam is made from good-quality material


  • Cutting is tough
  • Hard to install it for one person

How to install a Garage door insulation kit?

The installation of a garage door is not so tough job. It might be hard for one person but can be done by two persons effortlessly. above we showed you some best garage door insulation kits to keep your garage air-conditioned. After the purchase and delivery. Follow these simple steps to DIY your insulation foam:

  1. In the kit, you’ll find long pieces of bubble foil(white or reflective).
  2. You get a huge roll of double-sided tape, a squeegee, and a razor blade.
  3. Put the tape up to the day before, it makes it tacky as it sits. Cover the entire length of the garage door first.
  4. Expose the 2nd side of the tape and let it sit for 12 – 24 for best adhesion.
  5. Separate the foul rolls, and then roll up a single 18′ length by itself. this makes it SUPER easy to install.
  6. One edge of the roll is machine-cut straight as an arrow. Find that side and put that at your joint as it will give you the cleanest look. (Do this on every roll, one side is wavy other is straight).
  7. Place the roll against the tape and slowly unroll it right into the door. Press it in place as you move along.
  8. Make some relief cuts around the hinges (some remove the hinges, but I didn’t) and keep unrolling. Cut off the excess at the end and also at the widths side.
  9. Then trim around the hinges. The more time you take, the cleaner the installation.
    Note: The tape goes on the horizontal ribs of the door, not on the flat panel itself. That would defeat the insulation properties.

Frequently Asked Questions

Do garage door kits make a difference?

The insulation on a garage door provides durability and protection to a garage door. It adds an extra layer to keep your garage door hot in winter and vice versa. An air-conditioned garage saves your electricity bills and makes your house energy efficient.

Do insulation kits work?

Of course, insulation kits work. It provides extra protection to your garage during changing weather. It will keep your garage door warm on cold days and cold on hot days. Your energy bills will reduce effectively after the installation of insulation on your garage door.

How much does Garage door insulation cost?

If your want to remove the current garage door and replace it with a new garage door then it will cost you around $600 to $2500(depending on your door size, material, and insulation). But if you just want to add an extra layer of insulation then it is cheaper, it will cost you $60 to $400 depending on the insulation material and R-values.


An insulation kit is one of the best tools to keep your garage door well insulated from hot or cold climate change. These thick foams are made from long-lasting and durable plastic materials.

Before buying any product online, first read the buying guide to know what kind of insulation kit is suitable for your garage door

In this blog post, we discussed how to choose the best insulation kit for your garage. we also mentioned reviews of some best available insulation products on amazon. if you have any questions or quarry regarding this article feel to free to ask in the comment section below.

Trisha Mae Raymundo
Trisha Mae Raymundo

Senior Writer and Editor of The Home Spot.