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How Fibrex® Stands the Test of Time

How Fibrex Stands the Test of Time

When you need quality replacement windows, we offer only the best here at Renewal by Andersen® of Milwaukee. Thanks to the Fibrex® material we use for our frames, our windows can withstand years of use.


Here’s a fun fact: a recent study into our older windows show that they’re as sturdy as they were on the day they were installed. Learn more about Fibrex and what it is about the material that makes it withstand the test of time.

The Material Composition

Fibrex is made of composite wood fibers and thermoplastic polymers. This composite helps the frame withstand varying weather conditions, from heavy storms to cold winters and even sunny days. It is also versatile, meaning you can make narrow window sashes without sacrificing the quality of each panel.

The material’s composition makes it fairly low-maintenance. This means all you need to do is to regularly clean your double-hung window to keep the frames in peak condition.

Energy Efficiency

In addition to being durable, the Fibrex frame is also energy-efficient. It can block heat transfer from your windows incredibly well. In fact, it’s about 700-times more energy-efficient than a standard aluminum frame.

It is also more environmentally friendly than other options because of its recycled wood fiber content. This has saved more than 9 million feet of board lumber.

Long-Term Aesthetics

Fibrex doesn’t just withstand strong weather conditions. It is also durable, with a service life of thirty to thirty-five years. At the same time, the material’s capable of adapting to a versatile design range. This means your frames can match the style and color of its installation site, making your bay or picture windows look amazing no matter the architecture of your home.

As you can see, our Fibrex frame can help your windows stay strong for years. Coupled with our High-Performance™ Low-E4® glass, you can cut energy costs in the long run. To get your Waukesha project started, call us at (262) 955-8400 or our toll-free number at (877) 977-3639 for your free, in-home consultation.

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