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Fibrex® Versus Vinyl Windows: The Choice Is Clear!

If you’re looking to replace your old, inefficient windows, you may have seen advertisements for vinyl windows. Vinyl is a popular choice because it is a cheaper material and provides a quick, short-term solution.

But if you want windows that maximize beauty, energy efficiency and durability for decades to come, you should consider Renewal by Andersen replacement windows made from our exclusive Fibrex composite material.

What Is Fibrex?

It takes the right combination of glass, framing material and professional installation to make a strong, long-lasting window. Renewal by Andersen has transformed the window replacement industry with the development of an innovative composite window frame material called Fibrex, which is composed of a combination of wood fibers and thermoplastic polymers with impressive insulating properties.

Stronger Frames for Better Durability & Better Views

Fibrex is twice as strong as vinyl, allowing for sashes and frames to be thinner and narrower, giving you more glass area and a better view. Vinyl frames, on the other hand, tend to be thicker and bulkier, resulting in decreased glass area.

In addition, our windows are low-maintenance and are warranted not to flake, rust, blister, peel, crack, pit or corrode—so you’ll never again have to endure the tedious tasks of scraping and painting.*  Built in Minnesota, our windows are proven to stand up to even the harshest midwestern winters. Plus, our windows stand the test of time and are as easy to operate after 20 years as the day they were installed.**

Low Thermal Expansion Rates & High Energy Efficiency

Fibrex has a low expansion rate, meaning it resists expansion and contraction. Vinyl has a much higher expansion rate that can result in bowing and cracks that let in water and allow air to leak out. Windows made of Fibrex are superior to vinyl because no matter how much temperatures fluctuate, they won’t crack or warp. This means we can offer dark exterior colors that aren’t available in vinyl since Fibrex can stand up to intense heat of direct sunlight.

Fibrex: A Better Alternative to Vinyl Windows

For the strongest, most energy-efficient and beautiful replacement windows, contact Renewal by Andersen of Northeast PA to learn more about the benefits of our Fibrex material. Give us a call today at (610) 355-4055.

* See Renewal by Andersen® Products and Installation Transferable Limited Warranty for details.
**Based on testing of 10 double-hung units per ASTM E2068 20 years after installation.


"Our installation team, Josh and Mike, did a phenomenal job with the installation, cleanup, and "orientation" after the work was completed! We were totally satisfied with everyone that we dealt with before and after the installation...and would surely recommend Renewal by Andersen to anyone contemplating a window replacement project!"

Kathy B.
Nazareth, PA

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