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Fiberglass vs. Spray Foam Insulation

You’ve probably heard of both fiberglass and spray foam insulation, especially if you’re getting ready to insulate a new home or re-insulate your home. But many people aren’t sure what makes these two types of insulation different. Keep reading to learn more!

Difference Between Fiberglass & Spray Foam

To start, let’s take a look at the two different types of insulation separately.


One of the most popular types of insulation, fiberglass has been used in the construction industry for years and can be installed anywhere in your home—the attic, basement, walls, etc. Fiberglass insulation can be a blanket system of batts and rolls or it can be blown in. It is also one of the most cost-effective types of insulation available. Fiberglass insulation not only reduces outside noises but also noises between different levels and floors inside your home.

Spray Foam

Spray foam insulation, as its name suggests, is installed wet and dries into a thick foam. It fits snugly around piping and wiring and is ideal for insulating small cracks and crevices behind your walls. Due to its total coverage, spray foam also helps provide air sealing.

Main Differences

The main differences between spray foam and fiberglass insulation are the:

  • Material: Spray foam is applied wet and is typically made of polyurethane. Fiberglass is made of mostly organic material.
  • Installation: Spray foam is applied wet; fiberglass can be blown in or is available as batts (blanket).
  • R-Value: Spray foam and fiberglass differ in R-value and weight

Home Insulation Installation in Indianapolis

Looking for an insulation company serving central Indiana? Overhead Door Co. of Indianapolis & Muncie installs spray foam and fiberglass insulation and can insulate attics, walls, basements and crawl spaces. If you need to insulate your home in the Indianapolis area, make us your first and last call.

Get in touch with our team to learn more about our services or if you’re interested in scheduling a consultation with our professionals!

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