All Texans are looking for ways to reduce the demand on their air conditioner this summer. And we all know that a large source for solar heat gain is our windows.
The US Department of Energy recognizes that energy efficient windows are an important consideration for both new and existing homes. Heat gain and heat loss through windows are responsible for 25%–30% of residential heating and cooling energy use.
On the show we get a lot of calls about windows and window replacement. Here’s the low down on windows: The government regulates the energy efficiency ratings on windows so just about any window you get will be energy efficient.
When should you replace your windows?
If, you have aluminum framed windows, replacing your windows will definitely save you money because aluminum is one of the best conductors of heat. If you don’t believe me touch the inside of your window when it’s in the direct sunlight on a hot summer day.
Single-pane windows can be a red flag as well because (depending on the glass) the heat will travel directly through the glass. Double-pane windows don’t allow the heat transfer because the glass frames don’t touch, and the argon gas in between slows the heat transfer. So, if your house has builder-grade single-pane or aluminum windows you will definitely save money on energy bills with a window upgrade.
Don’t overlook the installation.
A bad install can cost you big money in the long run. Expert installation includes using the highest quality caulk to achieve the best seal. The custom-built window needs to properly fit to the opening to prevent air leaks around the edge of the windows. Even small leaks will cost you more money in energy bills. Companies that use cheap caulk and don’t properly seal the windows after the install end up costing their customers more money in the long run with high energy bills due to hot and cold air leaking into the edges of the window.
Another issue that comes up a lot on the radio show is bad framing. Replacement windows need to fit to an existing house that is in almost certainly less than perfect. A good window company won’t just fasten windows to the house but will recognize irregularities in the framing and install the new windows to get the proper seal. Treating each opening the same and the inability to recognize framing issues may cause windows to either stick out too far or end up with huge gaps on the side.
The companies that I recommend know how to handle those issues so you can be sure that when your windows are installed, they will not just save you money on your energy bills, they’ll also look great on your home.
