Garage Door Insulation Benefits

Warm air cannot escape via an adequately insulated garage door, and hot air cannot enter during the summer. Increased insulation reduces energy consumption and has numerous other advantages for your garage, home, and checkbook. Garages are often very cold or hot, so it is essential to have a well-insulated door. If you don't, you'll experience drafts, extremely high or low temperatures, and energy loss. You have a few alternatives for insulating your garage door. You can do it yourself with an insulation kit, contact a professional garage service or replace your old door with a new, energy-efficient one. If you decide to get a new entry, compare many different options to find one that is both insulated and stylish. A modern garage door can dramatically boost your property's value and curb appeal.

Outdated or inadequately insulated garage doors might cause numerous issues in your home. For instance, water can accumulate in your garage during a rainstorm or on days with a lot of humidity. This water cannot evaporate and will cause mold to form throughout your home and possessions. Condensation can occur in the cracks of your automobiles and electrical circuits due to a water buildup in your garage, hastening their deterioration over time.

Garage door PVC. Girl or young woman holds remote controller fo

6 Benefits of Insulating Your Garage Doors

Insulating your garage door has many benefits. It can save you energy, protect your home and belongings, and help you get back the money you spent on insulation. Six reasons why insulating your garage door is a good idea.

1. Increase Energy Efficiency

Do you have trouble with your garage being too cold or too hot in the summer? Even if you have insulated your garage walls, the temperature could get into your home through your garage door. Your garage's temperature will be more consistently maintained with an insulated garage door, which will help keep the temperature in your home stable. When you insulate your garage doors, your heating and cooling expenses should decrease. When the temperature in your garage rises or falls, hot or cold air can penetrate the interior of your home. It causes your A/C and heating units to overcompensate and work more frequently. Insulating your garage door will aid in maintaining a moderate and cozy temperature there. It's advantageous because you won't experience extreme heat or cold in the garage. Due to the more comfortable temperature, you may operate in your garage all year round.

2. Notice Quieter Operation

Some older and uninsulated garage doors make a lot of noise when you open and close them. Because the door panels vibrate and create noise, you can fix this problem by insulating or replacing your garage door.

If your garage door is lightweight, it can cause problems with the panels vibrating. You can solve this issue by insulating your current door or replacing it with a new, high-quality one. The insulation will keep the tiles from rattling and make the door quiet when operating it.

3. Boost Door Strength and Durability

Is it worth insulating your garage? Insulated garage doors are made of stronger materials than uninsulated ones. It makes them better for the long term. They also need less maintenance and repairs. The materials are also strong, so the doors are less likely to be damaged.

Garage doors that are constantly opened and closed can wear down over time. In contrast, an insulated garage door will survive substantially longer than an uninsulated one. Many insulated garage doors are built with a steel or aluminum frame and solid insulation inside. It makes them very sturdy and durable, able to withstand the weather.

4. Protect Your Car and Belongings

Installing an insulated garage door is essential if you want to protect your belongings. Your valuables are susceptible to high heat, cold, and humidity damage. It can result in extremely high repair costs or damage beyond repair. The temperature behind an insulated garage door will remain stable during the year. Keeping your car in a controlled climate will prevent temperature changes from causing wear and tear.

Insulated garage doors help keep water out of your garage. When water cannot evaporate, the humidity level in your garage rises. High humidity and moisture can cause rust to form on your tools. It corrodes your vehicle's electrical components and causes mold to grow in your walls or on garage-stored objects. A properly insulated garage door will establish a tight seal with the garage floor, keeping water out.

5. Reduce Noise

Insulating a garage door helps keep sounds out and in. If you have insulation, it will help reduce noise if you live near people or on a busy street. When working in the garage, the environment can be noisy. An uninsulated garage door lets noise come out and bother your neighbors. You can avoid this by insulating the door.

6. Increase Curb Appeal

You can replace your old garage door with a modern, insulated one that will improve the look of your garage. Your garage is one of the most noticeable features of your house, and a high-quality garage door can make it more appealing. An appealing garage door will also increase the value of your home, whether you plan on living in it for a while or are thinking about selling it soon.

Panorama frame Three car garage and driveway of suburban home. The three car garage and driveway of a modern suburban home on a sunny, clear day.

Do You Save Money by Insulating Your Garage Door?

Installing an insulated garage door will help you save money because it is more energy efficient than a non-insulated garage door. If you are in a warm area or have a connected garage, installing an insulated garage door will save you the most money.

If your garage isn't insulated, the extreme temperatures outside will come in through the garage door and affect the temperature inside your home. It will cause your cooling and heating systems to work harder, leading to higher energy usage and mechanical strain.

The amount you save on energy expenses will vary depending on where you live and how much heat escapes through your garage door. Insulated garage doors can be a good investment if you live in a very hot or cold climate.

Types of Insulated and Energy-Efficient Garage Doors

The insulated garage door you choose is determined by the environment, aesthetics, and budget. Any insulated door will work if the door has enough insulation for your climate. Most insulated garage doors have multiple layers and a thick layer of insulation in the frame. Here are some examples of popular insulated and energy-efficient garage doors.

  • An insulating layer is put within the steel frame of steel-insulated garage doors. It makes the door very durable and tough. It can resist damage and last for a long time. The steel will also protect it from bad weather. However, in coastal climates, the steel can corrode and rust if it isn't treated well.
  • Aluminum insulated garage doors: Aluminum garage doors are a fantastic choice because they are lightweight and require little maintenance. Installing an insulated garage door will significantly impact your savings if you reside in a warm environment or your garage is linked to your home. It is a good choice for older adults who may have trouble lifting a manual garage door.
  • Insulated fiberglass garage doors are a good option due to their durability and portability. They also don't require a lot of maintenance. If you pick this option, the coating on most fiberglass doors is meant to seem like natural wood so that it will match the style of your home.
  • Wood-insulated garage doors: Wooden doors are usually the most expensive, but they look luxurious and add value to a home. However, wood needs more upkeep than other options because you need to reseal it to prevent mildew, mold, and pests. If you follow the maintenance schedule, you'll enjoy your wooden garage doors for a long time.
Luxury house with double garage door in Vancouver, Canada.

Additional Elements That Affect the Energy Efficiency of a Garage Door

The insulation grade of your garage door, windows, and door size is more crucial than the style of door you select.


The effectiveness of insulation in preventing heat loss is gauged by its R-value. The "R" represents the material's resistance to heat flow. A greater R-value indicates that the material limits more heat than a lower R-value. A garage door with insufficient insulation R-value will lose more heat than one with a high R-value.

Different garage door companies measure the R-value in different ways. It can make it hard to compare the insulation value of other brands of garage doors. When a manufacturer provides an R-value, it is based on the entire door. The deals will be lower than those measured from the center panel.

The R-value measurement technique is inconsistent, so it can't be used to measure the thermal efficiency of insulation accurately.


The U-value measures how well the garage door is insulated. It is more accurate to measure the insulation because it considers that some parts of the door, like the frame and seals, don't have as much insulation as the panels. U-values for insulated garage doors account for this and give a consistent figure across all manufacturers.

U-values vary from 0 to 1, with lower numbers suggesting more effective insulation.

Home Front Exterior

Insulating Garage Doors Using Polyurethane vs. Polystyrene

Polystyrene: Polystyrene is denser than Styrofoam but is otherwise similar to it.

  • Polystyrene: Polystyrene is similar to Styrofoam, but it is more condensed. It makes it better at insulating. Garage door manufacturers often glue sheets of polystyrene to the garage door panels. When they do this, some areas like the corners have air pockets. It makes the insulation less effective. Polystyrene can also deteriorate if exposed to chemicals such as bug spray or gasoline.
  • Polyurethane: Polyurethane is a type of insulation sprayed directly inside your garage door frame. It results in better insulation and a higher U-value. Polyurethane is very fire-retardant; it will not melt if exposed to fire and can withstand temperatures up to 700 degrees Fahrenheit before charring. Additionally, it is impervious to all chemicals, oxidation, and solar damage.

If the door's outside maintains good shape, both materials will age nicely and not degrade over time. However, polyurethane will hold up better when exposed to stressors. In contrast, polyurethane provides better insulation but typically costs more than polystyrene.


Although glass is a poor insulator, windows can add aesthetic appeal to a garage door. If you live in a hot or cold climate, you should consider getting a garage door without windows. Garage doors with energy-efficient windows are still not as insulated as standard insulated garage doors, and heat will transfer through the glass.

Correct Garage Door Size

The garage door must fit correctly and form a tight seal against the ground and sides of the garage. If there are any gaps, the insulated garage door will not work well because air can escape.

Read more: How to Use Your Smart Garage Door Controller Better

Frequently Asked Questions About Garage Door Insulation Benefits

3d rendering of modern luxury house with garage door and concret