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Posted on May 29, 2015 by Sam Heer

Fibrex® and Low-E4® Glass: Protection and Energy Savings

Are your old and drafty windows starting to give you headaches? Have your energy costs started to skyrocket and yet your comfort has significantly dropped? Are your windows starting to reduce the overall aesthetic appeal of your home? If your windows have been giving you any of these problems, the best solution is getting quality replacement windows in Bloomington, IL.

window structure

You can get units that can help improve comfort, energy efficiency, and visual appeal from Renewal by Andersen® of Central Illinois. Our windows are equipped with advanced technology that ensures superb beauty and performance. Let’s discuss what makes our windows superior.

Superior Framing Material: Fibrex®
Fibrex is an advanced composite material that combines wood fiber with thermoplastic polymer. This combination allows Fibrex to have the strength and insulating qualities of wood with the low- maintenance features of vinyl. This strength allows us to create narrower frames and sashes. The result is a unit with a wider glass area to improve your view and provide better lighting to your living spaces.

Fibrex will never rot, fade, pit, or corrode so you can rest assured that our replacement windows will remain beautiful and provide you protection, comfort, and insulation for years to come. With Fibrex frames, you may be able to reduce your maintenance and energy costs significantly.

Superior Glass Options: High-Performance™ Glass
Another feature that allows our windows to improve your home’s energy efficiency is our innovative glass. You may choose any of these highly efficient packages for your replacement unit:

  • High Performance Low-E4® glass is the standard feature on many of our units. It’s 45% more energy-efficient in summer and 56% more energy-efficient in winter compared to your standard dual pane glass options.
  • High Performance Low-E4 SmartSun™ glass is our most energy-efficient glass option. It is 70% more efficient in summer and 45% more efficient in winter compared to ordinary glass.

Renewal by Andersen glass helps regulate the heat that comes with natural light, as well as block harmful UV rays that can damage your carpets, paintings, furniture, and other interior fixtures.

Superior Installation From Renewal by Andersen
Our factory-certified team will handle the installation so you can get the most out of our replacement windows. Whatever style you select—whether it’s casement or double hung windows in Galesburg, IL—our team will make sure they fit perfectly in your home. Learn more about our top performing windows, Fibrex frames, and Low-E4 glass by giving us a call today!


"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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