Vinyl Windows…Know Your Efficiency!

If you are considering vinyl windows, you already know that they are highly efficient. In fact, that is probably one of the main reasons you want to install vinyl windows into your home in Richardson, TX over other options. But when it comes to vinyl windows, they are not all the same. IF you want to get the best windows for your home, you need to know more about efficiency so you can be a better judge of the products that are vying for your attention. Here’s what to know.


The U—Factor is a very important numeric rating that will tell you how well the vinyl windows keep the heat and air conditioned air inside your home. The lower the number, the better the energy efficiency it provides. Lower numbers mean the windows are better at insulating your home. You will see a typical range of .20 to 1.20. When you see lower numbers, you know you are getting better vinyl windows.

SHGC or Solar Heat Gain Coefficient

The SHGC measured a window’s capabilities to block radiant heat that comes from the sun. When you live in Richardson, TX, this is a very important element to inspect since the sun gets very hot and intrusive. You will want to see a low SHGC number as well in order to get good vinyl windows. The ratings will range from 0 to 1.

Air Leakage

Air leakage is an optional reading that some manufacturers include. You won’t get this rating on every window, but when you see it, it is good to know what it means. The number is important because it shows you how much heat can be lost or gained through the window’s hardware or assembly. You will want to see a low number here as well because that indicated less air would pass through either direction.

Now that you know a little more about the efficiency ratings of vinyl windows Plano, TX, you can attack the options and make educated decisions. These basic readings are great to understand, but there are other numbers that will come up as well. Since you don’t work with windows on a daily basis, they can get confusing fast. The good news is the professionals at Foster Exteriors Window Company do work with windows every day. We know what each and every number rating means and we can translate it into a language you will understand. We’re happy to go into as many details as you want in order to ensure that you get the exact window you want and need in your Richardson, TX home. You are welcome to stop in and see us today at 1350 N. Buckner Blvd. #216, Dallas, TX, 75218. We’re happy to answer all your questions and help you in any way we can. Or call ahead for an appointment to get the personal attention you deserve for your project! 214—319—8400. We’ve been in business for over 30 years and our knowledgeable, friendly staff members are ready and willing to help you find the vinyl windows your home deserves.

About Us

Lynn Foster founded Foster Exteriors in 1987 in the Dallas/Ft. Worth Metroplex area.  In 2007, after 20 successful and award winning years, our company became Foster Exteriors Window Company, specializing in energy efficient replacement windows and doors.

Foster Exteriors Window Company

1350 N Buckner Blvd
#216 Dallas, TX 75218

(214) 319-8400

[email protected]

M-F (8:30am – 5:00pm)
Evening and Weekend appointments available

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Foster Exteriors