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There are some concerns about applying spray foam insulation to the inside of a garage door: The potential for product degradation over time, as well as questionable adhesion to some surfaces. However, if you’re seeking a high R-value of up to seven per inch of thickness and have some spare change in your pocket, Kraken Bond FastCoat spray could be just what your garage needs.

Kraken offers a variety of spray foam insulation and accessories. This kit includes 12 cans of spray foam, a spray gun attachment and gun cleaner for wrapping up the job, as well as safety goggles and gloves. The 12 cans cover up to 240 board feet at 1-inch thick, which should be more than enough for a full-size, two-car garage door. Installing spray foam insulation is usually a job for professionals. However, with patience, prep work and plastic sheeting on the garage floor, it’s a doable DIY garage project.

Pros

• Includes reusable spray-foam application gun, foam cleaner, safety goggles and gloves
• Installation requires no measuring or cutting
• Provides enough foam for a two-car garage
• R-value of seven

Cons

• Prep work is necessary for good results
• Product may degrade over time

What to Look for When Buying a Garage Door Insulation Kit

The best garage door insulation kit for your home depends on a number of variables, including the climate in your location, what you’re trying to achieve through the project and what type of garage door you have. Garage door insulation kits are available in several configurations, materials and insulating qualities and abilities, but the most crucial factors can be boiled down into just a few key points. Consider the following factors to help decide which is best for your situation.

• Cost: The whole idea behind insulating your garage door is to make your garage more comfortable while saving money on energy bills. It only makes sense that the insulation kit you purchase fits in your budget.
• Value: A good garage door insulation kit with proper installation can pay for itself rapidly through energy efficiency. If you’re not seeking the absolute lowest price tag for the project, ensure you receive a good value in the form of a return on investment. Paying slightly more to gain a higher R-value (while not breaking the bank) is likely a better investment than spending less now and paying more for heating or cooling later.
• Door size: Garage door insulation kits come in various sizes. Some are available as single or double door kits while others may only fit 7-foot tall doors or 16-foot wide doors. Be sure to check the kit’s size before purchasing one or more of them for your garage door. Also, make sure the kit is compatible with the style and material of your garage door.
• Installation: If you’re planning on insulating your garage door as a DIY project, be certain that the kit you choose fits your door style and that its installation is within your skill level. Remember that some products may be both easy to install and a good value while others may be difficult to install and provide little in the way of insulating qualities.

How We Found the Best Garage Door Insulation Kits

I have over 30 years of professional home improvement and repair experience in the field. I analyzed numerous manufacturers and products, and rated them based on performance, features, reviews and stand-out qualities. That lead me to the six best garage door insulation kits that are worthy of your hard-earned dollars.

FAQ

What is the best thing to insulate a garage door?

The best thing to insulate your garage door may be different from what’s best for someone else’s door. It depends on the climate in your area and how much insulating ability you desire.

Do garage door insulation kits make a difference?

A properly installed garage door installation kit can mean a difference of 20 to 40 degrees Fahrenheit variation between the inside of the garage and the outside elements. However, the garage insulation must be in good condition, and the door must have an intact seal to be effective. The kit makes a difference in the right situations, and can even be the difference between a garage heater being worth it or not.

Does Styrofoam garage door insulation work?

Styrofoam is, in reality, a trademarked name for a product manufactured by DuPont. Most often, what’s called Styrofoam is really expanded polystyrene (EPS). EPS is excellent for use as garage door insulation, due to its relatively high insulating value and reasonable cost.

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