Is Fibrex® Waterproof?

Is Fibrex® Waterproof?Lofty living room with brick fireplace, vaulted ceilings, and white-frame windows overlooking yard.

Does seeing a rainy or excessively humid day projected on the weather forecast elevate your level of concern for your home? It may be because the existing windows at your home do little to protect your home against the outdoor elements thanks to a poor seal with their window openings. This dilemma may place you in the market for replacement windows sooner than expected, yet it is a crucial investment nonetheless. During your search, you may have come across Fibrex® windows as a possible option for your home window replacement project. The sleek look of these replacement windows may serve as the perfect complement to your home’s existing aesthetic.

But before committing, you may be wondering if windows made with Fibrex® frames are waterproof. Fortunately for you, the answer is a resounding “yes”, thanks to their:

Nonporous Nature

Fibrex® is a proprietary composite material created by the innovative window manufacturer Renewal by Andersen®. Crafted from a 60/40 blend of thermoplastic polymer and reclaimed wood fiber by weight, respectively, Fibrex® stands as a viable alternative to windows made from natural wood. And since Fibrex® windows are nonporous, they do not absorb moisture, and therefore will not decay, rot, or otherwise deteriorate.

Structural Integrity

Consistently hot summers can have adverse effects on vinyl windows, as they are primarily comprised of plastic, which does not agree well with heat. With a composition that has been proven to be twice as strong and 12 times as thick as vinyl, Fibrex® does not warp and retains its rigidity much better than vinyl. What’s more, Fibrex® frames are designed to fit the window like a glove, creating a waterproof barrier, when shut.

Resistance to Thermal Contraction & Expansion

Many windows will contract and expand in response to extreme fluctuations in temperature, especially in areas of the country where the winters are frigid and the summers are sweltering. This can cause the seal between the windows and their openings to weaken over time, allowing drafts of air and even rain to seep in. Capable of withstanding temperatures as high as 150 degrees, Fibrex® windows don’t expand or contract, allowing them to maintain a weathertight seal and keep water from infiltrating the home.

Waterproof Your Home With Fibrex® Windows From Renewal by Andersen®

Now that it’s been determined that Fibrex frame windows are in fact waterproof, the next step is finding a reliable window company that not only carries these highly regarded windows but can perform an installation that ensures they operate as advertised. For homeowners in Green Bay and the surrounding areas, RBA of Greater Wisconsin is the name to call on. As a subsidiary of Renewal by Andersen, we are a proud installer of Fibrex windows. Our certified master craftsmen are well-versed in the installation practices of Renewal by Andersen, giving area homeowners the confidence that their Fibrex windows will be installed with precision.

Contact RBA of Greater Wisconsin today to schedule a complimentary consultation. One of our representatives will be happy to visit your home to answer any questions you may have surrounding our Fibrex® windows and to discuss your window replacement goals in detail.

Hear From Our Customers

We love our new windows! It’s beautiful, just what we wanted! No more leaky windows and matches my other windows perfectly!

Oshkosh, WI

Absolutely great experience. The installation team was very professional. We have also decided to replace two more windows next spring!

Appleton, WI

RBA did an excellent job and fast! 5 windows in 3 hours from the time they arrived, did the work & cleaned up. It was as if they had never been there, other than having these excellent replacement windows in place!

Green Bay, WI
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