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Frequently Asked Questions About Fibrex®

If you’ve planned to get home replacement windows, it’s likely that you have come across recommendations about Fibrex®. Unlike other window materials, its combination of wood and vinyl touches has secured its strength and stability. Given that it’s a complex material, most homeowners are still curious about what it has to offer. Here, we’ll answer some of the most frequently asked questions about Fibrex.


What Is Fibrex?

Fibrex is a material made through a combination of wood fiber and thermoplastic polymer that provides the durability of wood and vinyl’s low-maintenance features. These components allow resisting, bowing, cracking, and decay.

What Makes Fibrex Special?

It is known to have superior thermal insulating properties– vinyl, fiberglass, and wood. It allows keeping your place warm during winter and cool when it’s sweltering outside as it is designed with Andersen High-Performance™ Low-E4® glass. With this material, people get the insulating property of wood and the low-maintenance feature of vinyl without having any drawbacks of both wood or vinyl. Moreover, compared to the usual aluminum window frames, this will help you save a lot on utility bills.

Is Fibrex Available for All Window Styles?

Yes. With its unique combination of materials and strength, Fibrex can be manufactured into all types and designs of windows. It can also be used for specialty and curved windows, unlike fiberglass that only allows straight lines for a casement window replacement for example.

Do They Come With Warranties?

At Renewal by Andersen® of Rapid City, our Fibrex windows are backed by a 20/2/10 Limited Warranty, which is one of the best on the market.

At Renewal by Andersen of Rapid City, we believe all our clients deserve the very best, which is why we stand behind every replacement window and patio door we install. If you’re calling for awning windows installation, do not hesitate to reach us at (605) 307-5574 or here. We serve clients in and the surrounding areas of Spearfish, SD.


"We recently replaced all of the windows in our home. I was most impressed with the friendly staff who knew what I wanted before I did. They seemed to be able to find the perfect window for each one we replaced. We are very pleased with the result. From beginning to end they were professional and helpful. I would highly recommend Renewal by Anderson."

Sheila And Doug Cain
May 15

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