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How Fibrex® Resolved Warping Issues in Vinyl Windows

Warping is a common issue that almost all types of windows experience. For sliding windows, this can be especially problematic because warped frames and sashes can cause the sliders to become derailed from their tracks, hindering window operation. 

Vinyl is particularly prone to warping problems. Understanding the root cause of warping can help you prevent it. In today’s post, Renewal by Andersen® of Oklahoma shares some effective strategies to resolve warping.

What Causes Vinyl to Warp?

When vinyl was first introduced as a material for manufacturing windows in 1964, it was meant to be an affordable, low-maintenance alternative to wood. However, like all petroleum derivatives, vinyl is susceptible to thermal expansion and contraction. As it ages, vinyl also loses its elasticity or its ability to bounce back from a deformation. 

A Combination of Advantages

Renewal by Andersen developed Fibrex® in early 1991. The material was a product of years of research on how to circumvent the common problems that wood and vinyl windows experience. Fibrex is a composite material made with a high-quality heat-resistant polymer that was designed to be stronger and more durable than vinyl. The material is also made with reclaimed wood fibers in its production, giving it a beautiful natural wood grain textures sought after by homeowners and designers alike.

As a material, Fibrex combines all the advantages of vinyl and wood without the drawbacks. For example, double-hung windows made with Fibrex are resistant to warping problems that plague vinyl windows.

Enjoy the many benefits of warp-resistant Fibrex replacement windows at Renewal by Andersen of Oklahoma. Give us a call at (918) 921-9211 or fill out our contact form and request a free estimate today. We serve homeowners in Oklahoma City, OK, and nearby areas.


"Our new windows are absolutely wonderful! We were pleased with the entire process and the product and would recommend Renewal by Andersen to anyone."

Mike & Kathy, Edmond| OK
November 5

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