Schedule a Free Consultation

ENERGY EFFICIENCY PART 2: BEHIND DOOR AND WINDOW PERFORMANCE

In our special blog’s first part, we discussed the key projects you should focus on to boost your home’s energy efficiency. Now, we want to talk about the factors that affect the energy performance of windows and doors. As you shop for your replacement units, mind the following:

Energy Efficiency Part 2 Behind Door Window Performance

Glass

Since windows and patio doors mostly comprise glass, glazing is chiefly responsible for the energy efficiency of the units. Despite the climatic difference across America, double glazing is the st andard. Dual-pane windows and doors contain an insulating gas in between the glass sheets, minimizing the normal transfer of heat. Most companies, including Renewal by Andersen® of St. Louis, uses argon for fill. Compared with other gases, it offers better R-values, soundproofing qualities, and condensation resistance.

Furthermore, spectrally selective Low-E coatings are essential to prevent excessive heat gain, combat damaging UV radiation, and promote adequate daylighting. They only block the invisible solar rays that cause heat and sun damage, but without affecting the color and clarity of sunshine.

Frame

As the framework holding the glass panes of windows and French doors in place, the quality of the frame matters too. An ideal framing material contributes to insulation and remains weathertight with changes in temperature.

Old-fashioned framing materials, especially wood, are susceptible to rot, which leads to draftiness. Timber needs layers of paint to protect itself against moisture and stay beautiful. Over the years, periodic repainting would hurt your pocket. Fortunately, innovative alternatives, like Fibrex®, are now at your disposal to eliminate costly maintenance without worrying about moisture damage.

Installation

Buying high-quality windows and sliding patio doors means nothing when the installation is subpar. Workmanship errors are usually behind premature failures, causing your units to underperform quickly. Not all home improvement companies are equal, so don’t skimp on quality because you’d get what you pay for. Study the credentials of your prospects to make the right hire.

At Renewal by Andersen of St. Louis, we take pride in offering the most energy-efficient windows and patio doors in the region. Drawing on the rich tradition of craftsmanship, quality, and innovation of Andersen, our parent company, we guarantee flawless work for maximum energy efficiency.

Did you miss the first part of our special blog? Check our blog archive and find a long list of interesting reads. To learn more about our products and services, call us today at (314) 310-3636 to schedule your FREE, in-home consultation in St. Louis, MO. We’ll be happy to discuss your project with no strings attached.

Reviews

"Have nothing but great things to say about the window installation done today by John Hutchinson with Renewal by Andersen! He was friendly, personable and professional and did a great job installing. He did a great job of putting down roller pads and tarps with next to zero clean up. Would highly recommend them for any window replacement needed!"

Mark V.
Jun 26, 2025

"We had our new Renewal by Andersen windows installed on June 5th & 6th, 2025 and we LOVE them! The quality, beauty, and functionality are best-in-class! The whole experience from dinner presentation at Lazy River Grill, the initial in-home sales consultation and measurement, the regular communications from the salesman and concierge, and the installation team’s professionalism and skills made the process so seamless. This is the second home we have opted for Renewal windows and doors and have been delighted both times! Thank you Renewal by Andersen STL! "

Jeff C.
Jun 7, 2025

"I had an excellent experience with RbA STL. Our designer, Courtney, was great and the finished product is awesome. The installation was easy and the gentlemen left our home cleaner than they found it upon entering. I would recommend RbA STL - you’ll get tired from their constant contacts, and that’s a GOOD thing!"

Jeramy D
Jun 3, 2025

View All Reviews