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Posted on Mar 23, 2018 by Sam Heer

The 3 Biggest Factors to Consider When Choosing a Window Material

The market has no shortage of window materials. If you don’t know what to look for, it can be hard to narrow your options down. Since your chosen material will contribute to the beauty, energy efficiency and longevity of your windows, it should go without saying that you must choose wisely. Otherwise, your replacement units might age, underperform and fail faster than you expect.

For Renewal by Andersen® of Central Illinois, these are the prime factors you ought to consider to pick the best material for your windows:


Strong window materials don’t bow with extreme temperature swings. All building materials expand and contract when the weather gets hot and cold. Those that move a lot will crack with seasonal changes over time.

High thermal expansion is perhaps the least desirable quality of vinyl. Wood is its antithesis; however, it’s prone to decay. This is why our Fibrex® material is the best choice. Made from wood fibers and proprietary polymers, Fibrex has exceptional rigidity and stability with the remarkable ability to repel moisture. In other words, it can remain weathertight in any climate and resist decay.


High-performance replacement windows are key building blocks of your home’s complete thermal enclosure system. Although the glass is the main window component for reducing the transfer of heat, the framing material is equally important. An inefficient material, like aluminum, can waste energy and hence, your money.

Apart from choosing a material with excellent insulating properties, its strength plays a role in its energy performance, as well. A good case in point is Fibrex; it’s so strong we can afford to make our frames and sashes narrower, reducing the glass-to-frame ratio of our windows. As a result, our products reduce thermal bridging to save more energy.


The beauty of true, attractive replacement windows should last a long time with minimal maintenance. The problem with fiberglass is that it may need regular painting to stay beautiful. Without lasting finishes, keeping your windows charming for years might cost you a significant amount of money, time and energy.

Fibrex is nearly maintenance-free. It’s guaranteed not to flake, rust, rot, blister, flake, pit, peel, chip or corrode under normal use for a long time. Plus, it comes with a transferable 10-year warranty for its finishes.

Renewal by Andersen of Central Illinois offers Fibrex windows, the best products with the key qualities you can expect only from high-quality windows. To learn more about it and see it first-hand, contact us now for your FREE consultation and estimate in Decatur or Springfield, 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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