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Window Warping: How Fibrex® Windows Can Help

A serious issue that usually occurs in wood, and sometimes vinyl, windows, warping can completely compromise the efficiency and curb appeal of your home. Here, we talk about window warping and how installing Fibrex® windows can help prevent it.

Window Warping

What Is Window Warping?

You can tell a window is warped when it becomes bent or twisted out of shape, creating small gaps that are not only unsightly, but also have a negative impact on the overall performance of the window. Common forms of window warping you need to watch out for include:

  • Bowing along the face of the window.

  • Crooking along the edge of the window.

  • Kinking along one area of the sash.

  • Cupping, which occurs when the window warps inward or outward.

  • Twisting, which occurs when the edges of the window twists.

What Causes Windows to Warp?

Moisture is the number one culprit behind warped replacement windows. Since wood naturally absorbs and retains moisture, it can cause severe rotting and warping when left unchecked after a while. The longer the moisture is retained, the more permanent the damage is. Grain orientation, sunlight exposure, air circulation and finishing are all factors that contribute to warping in wood windows. Vinyl window frames are also quite susceptible to warping. This happens when heat builds up within the frame, especially when the material is not particularly strong or rigid.

How Fibrex® Windows Can Help

A composite framing material made with wood fibers and polymer, Fibrex is extremely warp-resistant. It combines the inherent strength of wood and low-maintenance qualities of vinyl, resulting in a durable material that is warranted not to crack, peel or fade within its expected lifespan. It also comes with High-Performance™ Low-E4® glass that has several layers of coating that prevent solar heat gain.

You can always count on Renewal by Andersen® of Southwest Missouri for top-quality home window replacement solutions, including installing durable and energy-efficient Fibrex windows in your home. Call our skilled team at (417) 685-4446, or fill out our convenient online form to request a free quote, no-obligation today.


"Great workmanship on windows installation is done very professionally by excellent crew. Installed in a very timely manner. Excellent company to deal with."

Roy D
Feb 14, 2023

"The Springfield team was wonderful to work with , professional , friendly and knowledgeable. They all seem to take great pride in their work. These new windows are fantastic, they look great , operate so easy and the energy efficiency was noticeable from the very first day . Thank you Renewal by Andersen for transforming our home and our lives."

Pam S
Feb 15, 2023

"After years of watching the wind move my drapes and hours of difficult cleaning, I decided to get new windows. I went with Renewal by Andersen because of the great reviews and quality. From Brent who did the consult, Gideon who did the measuring, to Jason, Josh, and I apologize I can't remember the third installers name, this is the most professional company I've ever worked with. I own a 1994 double wide mobile home, so everything in this place is hard to work with. I had a bay window, 6 double hung, 2 awning, and a front door replaced.. They said it would take 2 days and they were done on time! I did have second thoughts about doing this mainly because of the cost, but once it was done, I was very happy I did this."

Gary S
Feb 18, 2023

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