Schedule a Free Consultation

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.


"Excellent service and product! They checked in with me every few weeks while we were waiting for the order. I was impressed with Sam, who measured my windows and headed the installation crew. He was respectful and patient with his team. They cleaned up after themselves. Before the new windows I had huge windows that didn’t open. Now I feel much safer and get better temperatures in those rooms."

Kimberly Kester
Jul 18, 2022

"My experience with Anderson Renewal was amazing! From the first meeting with Miranda to choose my windows and doors to the installation provided by Tim and his crew was a pleasure! I just bought a home built in the 1960's that needed new windows and a new double front door with sidelights. As everyone knows Anderson Windows are great, but it was the people I interacted with from Anderson that made it such a great experience. It took three days for the windows and door to be installed and they "worked" every minute they were here. My huge front door took most of the day to install because they had to put in a new header and other improvements to make it fit! They even put up new drywall on the inside. Many people in the neighborhood have stopped by to comment on my beautiful front door! I think the crew left my house cleaner than it was before they started! Constantly cleaning up after themselves. I am thrilled with my windows and feel lucky to have met the team at Anderson."

Kimberly Wilson
Jul 17, 2022

"Very professional staff . No pressure sales. The job they do is neat and clean, no cleanup left for the owner. Communication is great. Always informed on the status of of your product, AND the tin of cookies you receive afterwards is a pleasant plus."

Peggy Spivy Morse
Jul 13, 2022

View All Reviews