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Fiberglass vs Spray Foam Insulation | Which Option is Best for You

Fiberglass vs Spray Foam Insulation | Which Option is Best for You

August 28, 2020

fiberglass vs spray foam insulation

There are various types of insulation on the market, giving homeowners like you many insulation options. For the sake of this blog, the pros at DFW Thermal are going to talk about and compare fiberglass insulation and spray foam insulation. While both are effective, it’s important to do your research before you pick one. Take a look at each insulation type’s unique qualities, capabilities, as well as your own needs and then decide which one is best for you. To help you get started, our experts are here with a helpful guide on Fiberglass vs. Spray Foam Insulation and which option might work for you.

Fiberglass Insulation

What is Fiberglass Insulation?

Fiberglass insulation is the most commonly used type of insulation. It can be installed as batts or blown in as loose-fill insulation. It is relatively inexpensive, non-flammable and has a high R-Value. R-Value is the measure of the thermal resistance of insulation material—the higher the R-Value the higher the thermal resistance. For fiberglass batts, the R-Value is 13 for the thickness of 3.5 inches and 30 for the thickness of 12 inches. For loose-fill insulation the R-Value is 30 for 8-inch thickness and 50 for 23 inches.

Is Fiberglass Insulation Right for Me?

Fiberglass is commonly used, budget-friendly for the most part and easy to install. It can also be resistant to moisture and mildew—however, if it is exposed to excessive moisture for too long it might lose its effectiveness. If you choose loose-fill insulation, it can do a good job of filling in small gaps, but can compress over time, making it lose it’s thermal resistant capabilities. If you choose batts insulation, it might be more rigid and durable but harder to install around corners or in odd gaps.

If you live in a moderate climate and/or want to take the safer, more budget-friendly route, fiberglass insulation might be the one for you. It’s inexpensive, generally resistant to mold and moisture and if installed properly, will save you money on your energy bill.

What is Spray Foam Insulation?

When spray foam insulation is initially applied it has the appearance of shaving cream, but when it cures it becomes an impenetrable barrier. It is not installed in batts or blown in; it is essentially injected as a solution. Not only does it have good thermal resistant capabilities—it’s R-Value range is 3.7 per inch to 5.2 per inch—it can also fill in gaps, cracks and air leaks. Lastly, spray foam insulation comes in two types: open cell spray foam, which has lower density and closed cell, which is more rigid and has been identified as flood resistant by FEMA.

Is Spray Foam Insulation Right for Me?

Spray foam insulation is on the costlier side and takes more time, effort and money to have installed. However, this unique insulation type can fill in the smallest gaps and closed cell is specifically resistant to moisture. It can also save you up to 50 percent on heating and cooling bills.

If you want to try a different insulation material, prevent even the smallest air leaks, and want material that resists moisture and mold – spray foam insulation might be right for you!

Have any more questions about fiberglass vs. spray foam insulation? Call us today at 214-731-3115 or schedule a service online!