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Posted on May 14, 2019 by Sam Heer

The Drawbacks of Vinyl Windows

As is the case with most window materials, most vinyl windows look good and function well when they are newly installed. They can, however, become much more vulnerable to some long-term problems, most of which begin to appear after a few years or so. They may be economical compared to other window materials, they don’t always provide the best value.

Renewal by Andersen® of Central Illinois, your local source of replacement windows, highlights the biggest problems associated with vinyl windows.

Expansion and Contraction

Vinyl windows tend to expand and contract when exposed to sudden temperature fluctuations. The weathertight seal surrounding them breaks as a result, with the gaps leaking heat out and the air in. This issue compromises the home’s energy efficiency and comfort levels.


Another common problem of vinyl windows is that they don’t stand up well to the heat. High temperatures can cause the frame material to sag. This issue can detract from the interior and exterior appeal of your home if left unaddressed.


Vinyl windows may come in a wide variety of colors, but the hues generally don’t last long. After a few years, the units succumb to the sun’s ultraviolet and infrared radiation, losing their vibrant, attractive appearance.

Why Fibrex® Beats Vinyl Everyday

With vinyl’s pronounced disadvantages, it would make sense to find a better alternative when searching for replacement double hung windows. Fibrex® is one such example. A patented wood-polymer composite from Renewal by Andersen®, it shares the best features of premium vinyl without the downsides.

Thanks to the material’s wooden component, it gives windows their rigidity and stability. In fact, a long-term durability study showed that Fibrex windows didn’t crack even after 20 years of exposure to Minnesota’s harsh climate. This proves that it can stand up against the elements without the likelihood of rot or corrosion.

Moreover, the extrusion process allows Fibrex windows to stay in great condition even after many years since their original installation. Colors are fused into the material, making it impossible to fade. In fact, we provide a 10-year coverage on its exterior color finish.

For your bay window replacement needs, turn to Renewal by Andersen of Central Illinois and enjoy the benefits of Fibrex that you won’t find in any other window material. Call (866) 693-6707 or fill out our contact form to request a free in-home consultation. We serve residents in the following areas: Champaign, Galesburg and Bloomington, IL.


"I would recommend RBA of Central Illinois for QUALITY windows and doors. Compared to our old cheap, thin vinyl windows, Andersen blows them away. You can easily tell by how well the sliding doors fit and close, and how heavy duty they are. We also cannot hear the wind rushing through the house in inclement weather anymore! And the black window frames we went with are amazing to look at. Aaron, Al, Darrell, and Cory all were professional and went all out to finish the job, given the weather they had to deal with. I would definitely recommend. They were also on top of communicating with me given the weather delays, and what I could expect for them coming out. Five stars!"

Eric L.

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