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What Is the Best Garage Door Insulation?

Adding insulation to your garage door is a great way to keep your space comfortable year round. Whether for work or play, an insulated garage results in a more versatile space. It also creates a safer environment for your vehicle, children, and pets. Review the most common types of insulation for garage doors in Denver below. Then find out how you can easily install

garage insulation.

Garage Door Denver

Types of Insulation


There are a few types of foam you can use to insulate your garage door with. Foam core, or rigid foam, is a type of dense styrofoam. Despite its density, foam core is actually lightweight and easy to manage. You can also choose from several types of foam core, like EPS, XPS, and polyiso. Another type of foam insulation is spray foam. This can be a fun and easy option for those looking for a quick DIY project. However, spray foam is hit or miss when it comes to full insulation. It doesn’t last as long as some other insulation types.

Radiant Barrier

A radiant barrier is exactly what it sounds like – a barrier that reflects radiant energy from entering your garage. This barrier is often a type of aluminum or other highly reflective material. You might have seen radiant barrier insulation sitting in a vehicle’s windshield. The same concept applies to your garage space. An “air space” layer of bubble wrap sits between two reflective layers and cuts off heat flow. This can either keep heat from leaving in the winter or from entering in the summer.


Unlike other types of insulation, fiberglass does not absorb heat. It does, however, work as an insulation by keeping heat from escaping. Fiberglass is made of a thick, dense fibrous material. Used commonly in attics and floors, fiberglass can help stop heat from escaping your garage in the colder months.


If you’re looking for a more “green” option, cellulose is made from completely organic materials. Cellulose is primarily composed of recycled wood or other plant fibers. It can also be made from paper products like old newspapers and cardboard. It comes in spray form for a quick and easy application. Although cellulose insulation is priced higher, it is a durable and long-lasting insulation.

DIY vs Professional Installation

It is fairly easy to install garage door insulation yourself. Just be sure you are familiar with the materials and method before you start. However, some types of insulation require specific tools to cut and measure the materials. Even applying a spray foam or cellulose spray can turn into a taxing job. It is also worth mentioning that insulation can change the weight of your garage door. This can put attentional stress on your motor and springs. Ultimately, the best way to insulate a garage door si to buy a new door with the insulation already installed.

If you’re looking to get the work done right the first time, contact a garage door specialist in Denver. We can help fit your garage door for insulation and install it quickly and efficiently. Contact our team of professionals to learn more about the benefits of garage door insulation and other tips.

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