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?
Insulate Iowa 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.

The crew at AFI was outstanding! Work was completed in a professional and timely manner. Highly recommended!
This company is the best. Our home posed many challenges as it is 148 years old with additions of unknown ages. Mike K. and his team faced each challenge with grace and got the job done to perfection. Even with a 70 lb puppy, Milly bringing him toys all day. I highly recommend them!
The guys did a great job this morning with an extraction! Looking forward to calling them when we need to spray foam!
The crew did a GREAT JOB.
Mike and his helper did a great job insulating my garage. Very Professional and did a good job cleaning up also. Highly recommend.
We were very impressed with the professionalism and speed at which we got service from AFI. Darren came out on Wednesday to give us a quote and had Mike and his team out on Friday to put in the insulation. They were courteous and did an excellent job. Would highly recommend.
They were very knowledgeable and helpful. Mike, Kane, Dustin and Zac worked together to do a good job. They told me what they were going to do and did it in a timely manner. They cleaned up the area after they were done and didn’t leave a mess. We would recommend AFI to everyone wanting a good job done with there insulating projects. Thank you guys. We now will stay warm this winter.
I recommend AFI for any insulation needs. Very professional, responsive, knowledgeable and top quality workmanship.
Great service, excellent work! Duston installed our spray insulation and explained everything, did efficient work and cleaned up the space promptly afterwards! Would def use them again in the future!