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Fiberglass Batt Insulation

What Is Batt Insulation?

Its easy installation process and relatively low cost make fiberglass batt insulation a common material for residential and commercial insulation projects. Fiberglass insulation can be installed in every type of space:

Unfinished walls
Between studs, joists, and beams
Technician applying batt insulation
Technician applying batt insulation

What It’s Made Of

Fiberglass batt insulation is made with a combination of fine glass fibers and plastic. Here’s what the fiberglass-making process looks like:

Molten glass is transformed into small fibers
A liquid binder is poured over small fibers, and made even smaller to allow for cooling
After being transported to a conveyor belt, the glass pieces combine to form one bigger chunk of glass that travels through an oven
Now you have the batts, which are cut into even pieces

How Does Fiberglass Batt Insulation Work?

By capturing air pockets, fiberglass batt insulation hinders—but doesn’t fully halt—the spread of hot air, cold air, and sound. As a result, the amount of air that both enters and escapes your building, decreases. With fiberglass batt insulation, your rooms will stay warm in the winter and cool in the summer. Talk about premium year-round comfort.

Batt insulation

What is R-Value?

R-value measures how well insulation materials resist the flow of heat. The higher the R-value, the better insulated a building is. Your area’s climate will help determine what R-value you should look for in insulation. Homes and businesses in colder states necessitate insulation with a higher R-value, whereas insulation with a lower R-value is sufficient for those in warmer states. Since fiberglass insulation can be installed in layers, it offers a high R-value.

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Pros & Cons of Fiberglass Batt Insulation

Like any other type of insulation, fiberglass insulation has a mix of benefits and drawbacks. Check them out below.


Can reduce the flow of moisture
Keeps out fibrous particles
Versatile insulation material that can be installed in attics, crawl spaces, joists, and unfinished walls


Direct contact can cause skin irritation
Inhalation can cause respiratory issues and nosebleeds
Doesn’t fully impede airflow
Can cause mold to grow

Looking for a Batt Insulation?

Contact Legacy Roofing & Solar Today

As a family-owned and operated residential roofing company, we’re proud to serve families with quality fiberglass batt insulations they can trust. Guided by the principles of quality, safety, and community, our goal is to make clients happy with their building’s insulation. Our insulation contractors have the experience needed to keep your home or business comfortable year-round. Get in touch with us today!

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Please note that we only provide services in Illinois and Florida.
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