Looking for a cost-effective insulation option with reliable thermal performance?
Fiberglass batt insulation is one of the most widely used solutions in both residential and commercial buildings across Iowa.
What It Is
Also known as blanket insulation, fiberglass batt insulation comes in pre-cut flat pieces made of spun glass fibers.
It’s typically installed between studs, rafters, and joists, making it a practical choice for both new builds and retrofits.
This type of insulation remains effective over time because it does not settle—helping to maintain its fiberglass insulation R-value for the long haul.
It’s also one of the most budget-friendly options on the market, available in a wide range of thicknesses and R-values to suit different needs.
Batt Insulation R-Values: R-11 to R-49, depending on thickness installed.
Key Benefits of Fiberglass Batt Insulation:
Common Uses
Fiberglass batt insulation is ideal for insulating attics, ceilings, floors, and walls. It’s especially useful in framing cavities, where its flexibility allows for a snug fit that reduces heat transfer and supports better indoor climate control.
Whether you’re insulating a residential home, post-frame building, or light commercial space, this material offers a dependable way to lower energy costs and improve year-round comfort.
Plus, its fiberglass insulation R-value ratings make it easy to select the right level of thermal protection for your project.
Common Applications for Fiberglass Batt Insulation:
- 1
Attics and vaulted ceilings
- 2
Wall cavities and knee walls
- 3
Floor joists and crawl spaces
- 4
Basements and rim joists
- 5
Post-frame and pole barn construction
Ready to Get Started?
AFI Insulation offers professional installation of fiberglass batt insulation throughout Iowa. Our team will help you choose the right R-value and ensure every batt is properly placed for maximum energy efficiency.

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