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Whole Window Performance Equals Truly Energy-Efficient Windows

Many homeowners would rather not be bothered with detailed information about the replacement windows they buy. But having such knowledge lets you make informed decisions about which options to choose, especially when you have the ability to fully customize your new windows. In this blog post, your leading replacement window company, Renewal by Andersen® of Oklahoma, shares a look at the components that contribute to whole window performance.

Whole Window Performance Equals Truly Energy-Efficient Windows

High-Performance™ Low-E4® Glass Packages

Glass is an inherently conductive material that also happens to be the biggest component of every window. This makes traditional windows virtual freeways for heat transfer, causing heat gain during hot weather. heat loss during cold weather.\ and higher energy consumption.

The solution is to add insulation to the glass. Instead of the kind that’s used for exterior walls and in the attic, a dual-panel glass assembly is used. Eliminating contact between interior and exterior surfaces significantly reduces heat conduction. This is the reason our replacement windows are equipped with duall High-Performance Low-E4 glass panels, from basic double hung windows to room-spanning window walls. With additional features such as low-emissivity coatings and an optional insulating gas fill, you can expect reliable performance over the windows’ life span.

Fibrex® Frames

Glass packages of such a caliber require window frames to match. This is why, after decades of research, our replacement windows feature frames made of Fibrex, a composite material made of wood fibers and polymer which combines the strength and stability of wood with the low-maintenance requirements of vinyl. Fibrex features inherent insulation, eliminating the need for core insulation and complementing the performance of our glass packages.

Professional Installation

The installation process is an often overlooked yet critical component of whole window performance. The quality of a replacement window won’t matter if it’s not properly installed, which is why we hire and train our own installers, and hold their installation work to high standards of quality, just like our replacement windows. We’re so confident in our technicians’ ability to deliver that our Transferable Limited Warranty includes 5-year installation coverage.

To learn more about our popular energy-efficient window styles such as sliding windows, call Renewal by Andersen of Oklahoma today at (405) 212-5936. You can also fill out our contact form to schedule a free in-home consultation. We serve OKC and surrounding areas.


"Our new windows are absolutely wonderful! We were pleased with the entire process and the product and would recommend Renewal by Andersen to anyone."

Mike & Kathy, Edmond| OK
November 5

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