Fibrex® Composite Material
An Andersen Exclusive
Andersen Corporation created Renewal by Andersen to change the window replacement industry – not only with a different and better process – but also with an innovative new material to make the frames. In 1992, Andersen perfected and patented Fibrex® composite material technology.
Fibrex® material is a better window framing material for several reasons
Consider everything you expect from a window. Fibrex material makes a difference in every instance. Measured across a range of conditions that affect efficiency, maintenance and beauty, Fibrex material performs well compared to wood, aluminum and fiberglass, and especially well against vinyl.
| Fibrex® Material | Other Materials | |
| Strength | Because Fibrex® material is strong, we can make our sash and frames narrower and that means more glass, more view. | Vinyl frames are known to have a higher expansion/ contraction rate and can bow, breaking the glass seal. |
| Insulation | Fibrex material has superior thermal insulating properties. Combined with Andersen® High-Performance™ Low-E4® glass, this helps your home stay warmer in winter and cooler in summer. You can save money on your energy bills. Your home feels more comfortable. | Aluminum window frames conduct heat and cold. Heat leaks out of your house in the winter and into your house in the summer. |
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Low Maintenance
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Fibrex material never needs scraping or painting. It won’t rot, decay or mold* | Fiberglass frames are painted and may need regular maintenance. |
| Beauty | Renewal by Andersen replacement windows preserve the architectural beauty of your home. Frame and sash design reflect the shape and lines of your original windows. The unique extruded Fibrex material can be made into any kind of window – including curved specialty windows. | Most replacement windows have square profiles that may look artificial in your home. Vinyl frame material is often thicker, reducing glass area. Fiberglass can only be made into straight lineals. |
| Environmental Responsibility | 40% of the raw material by weight used to make Fibrex material is clean, reclaimed wood fiber. Reclaimed materials in the manufacturing process can also be reground and reused. Renewal by Andersen® windows are ENERGY STAR® qualified for meeting strict energy efficiency criteria set by the U.S. Department of Energy. | Fiberglass is a thermoset material and cannot be reformed into new profiles. |
| Warranty | A window is not just glass and some framing material. It’s a precise combination of glass, frame and quality installation. We back it all with a 20/2/10 Limited Warranty* that is one of the best in the business. | Installation is rarely covered in the written warranty. |
Learn more about Fibrex, the exclusive composite material that makes Renewal by Andersen windows a better choice.
Request an Estimate
Schedule a free in-home window and door consultation today.
Schedule a ConsultationBuy One Get One 40% Off*
PLUS $200 off your entire purchase. And NO money down, NO monthly payments, NO interest for 12-months*
Offer ends 12/31/2024
Minimum purchase of 4 required. Interest accrues from date of purchase but is waived if paid in full within 12 months*
OUR HASSLE-FREE PROCESS
Step 1:
Design Consultation
Our design consultants provide in-home meetings to listen to your design needs and provide a plan to improve your home.
Step 2:
Measure & Manufacture
Project Technicians ensure accuracy and answer any last minute questions before sending in the order for your fully customized windows.
Step 3:
Installation
Our Installers treat your home as if it were their own and clean up afterwards.
Step 4:
Customer Care
A robust limited warranty is backed by a commitment to making sure your windows function as expected.