What we do

Spray Foam vs Fiberglass Insulation

Divi Contractors

A Detailed Overview: Spray Foam vs Fiberglass Insulation

There are many types of insulation available on the market today, but the two most common are spray foam and fiberglass. Both have their own advantages and disadvantages, so it’s important to know which one is right for your needs.

Spray foam insulation is made from a mixture of polymers and chemicals that are sprayed onto surfaces. It dries quickly and forms a tight seal that helps to prevent air and moisture from entering or escaping. However, it can be more expensive than other types of insulation and can be difficult to apply if you’re not experienced.

Fiberglass insulation is made from glass wool or rock wool that is then mixed with a binding agent. It’s easy to install and can be cut to fit any space, but it doesn’t provide as much of a barrier against air and moisture as spray foam does.

Highly experienced

Types of Insulation: Spray Foam vs Fiberglass

There are two main types of insulation: spray foam and fiberglass. Each has its own set of benefits and drawbacks.

Spray foam insulation is made from a mixture of chemicals that expand when applied to a surface. It can be sprayed into any shape, making it ideal for difficult-to-reach areas like attics and crawl spaces. Once it dries, it forms a solid barrier that prevents heat loss. However, spray foam is expensive and can be messy to apply.

Fiberglass insulation is made from glass fiber that is woven into a mat. It is commonly used in walls and ceilings, as it can be cut to fit between studs or joists. Fiberglass is an effective insulator, but it does not form as tight of a seal as spray foam.

We’d love to help

Pros and cons of Fibreglass and Spray Foam

There are a few key differences between spray foam insulation and fiberglass insulation. One is the installation process—fiberglass insulation is installed in batts or rolls, while spray foam is sprayed in place. This can make spray foam more expensive to install, but it also means there are no gaps or voids in the coverage, making it a more effective barrier against air and energy loss.

Another difference is R-value. Fiberglass typically has an R-value of 2.5-3.8 per inch, while spray foam has an R-value of 4-6 per inch. This means that spray foam is a better insulator than fiberglass, particularly in areas where there are gaps or voids in the coverage.

Finally, fiberglass is made from recycled glass, while spray foam uses petroleum products in its construction. This means that fiberglass has less of an environmental impact than spray foam.

We’d love to help

Cost Comparison

Spray foam is significantly more expensive than fiberglass, though its higher R-value makes it a better value in terms of energy efficiency. It’s also important to consider the cost of labor when comparing the two systems. While fiberglass is installed with a stapler or spray gun, spray foam takes several hours to install and requires the assistance of a professional. Fiberglass is a good choice for someone who wants a quick, inexpensive installation. It also works well in older homes that may have issues with moisture and drafts. Spray foam is best for new builds or retrofits of existing homes.

We’d love to help

Which is better for the environment?

When it comes to insulating your home, you have two main choices: spray foam or fiberglass. But which is better for the environment? Both insulation systems have positive and negative aspects that make them both good choices. Fiberglass insulation is made from the waste products of the papermaking industry. It contains recycled glass and post-consumer fibers, which are mixed with resin to create a fluffy material. It is non-toxic and fire retardant, with a low risk of off-gassing.

Spray foam is made from petroleum products and chemicals, so it’s not the most eco-friendly option. However, it’s far more effective at insulating than fiberglass, so you’ll use less energy to heat and cool your home.

In the end, both options have their pros and cons when it comes to the environment. It’s up to you to decide which is more important to you: saving energy or being eco-friendly.

We’d love to help


There is no clear winner when it comes to spray foam vs fiberglass insulation. They both have their pros and cons. Spray foam is more expensive, but it offers better insulation and can fill in cracks and gaps. Fiberglass is cheaper, but it does not offer as much insulation and can be difficult to install. Ultimately, the decision comes down to personal preference and budget.


Arrange a free quote

(574) 406-2197
[email protected]

BMC spray foam did an amazing job on my spray foam installation! They were professional, quick, and the job turned out great. I would definitely recommend them to anyone looking for a spray foam installation.

James Stevens

If you’re looking for a good spray foam insulation installation service, I would recommend this one. They did a great job on my home and I was really happy with the results. The process was quick and easy, and the results were great. I would definitely use this service again.

Lara White

Amazing work from the guys at BMC Spray Foam Insulation. They fully understood what we wanted to achieve and were able to bring our commercial insulation project to life in such a short time.

Randy Mathews