Renewal by Andersen®

Fibrex®: An Andersen Exclusive

AN EXCLUSIVE PRODUCT

Renewal by Andersen® windows are made from Fibrex® material, an Andersen-exclusive composite that combines the strength and stability of wood with the low-maintenance features of vinyl.

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.

Designed for energy efficiency, durability, beauty, and minimal maintenance, our windows stand the test of time and are backed by a robust limited warranty.

What is Fibrex® Material?

All of our windows are made of Fibrex® material, a revolutionary composite made from reclaimed wood fiber blended with a polymer. This gives our windows the strength and durability of wood, and the low-maintenance features of vinyl while greatly limiting thermal transmittance found in other window materials such as metal.

Regardless of which window feature is your top priority (we hope they all are!), your Renewal by Andersen® windows can make a difference in every instance.

Download our Fibrex® material brochure to learn more about this amazing material.
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Why Fibrex®?

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Strength & Durability

Twice as strong as vinyl, Fibrex® material means weathertight seals stay weathertight. Its durable nature means that it can stand up to even the most extreme temperature swings, maintaining its stability and rigidity in all climates.

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Low-Maintenance

Unlike fiberglass frames, Fibrex® material never needs scraping or painting. It won’t rot, decay or mold. Plus, our windows stand the test of time and are as easy to operate after 20 years as the day they were installed.*

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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.

The process also fuses the color into the material, offering you a wide palette of long-lasting colors to choose from—including dark exterior colors not found with most other replacement windows.

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Energy Efficiency

Twice as strong as vinyl, Fibrex® material means weathertight seals stay weathertight. Its durable nature means that it can stand up to even the most extreme temperature swings, maintaining its stability and rigidity in all climates.

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.

All we do is windows and patio doors, and our installers are some of the best in the business. That’s why our robust limited warranty doesn’t just cover the product and the glass, it covers installation, as well. Non-prorated and fully transferable, the limited warranty is one more way you’ll know we’re here for you—start to finish, today, tomorrow, and years down the road.

*Based on testing of 10 double-hung units per ASTM E2068 20 years after installation.