Brock’s Insider Guide to Energy Efficient Window Replacement


Brock’s Insider Guide to Energy Efficient Window Replacement

December 01, 2016

Energy efficiency ratings to look for 

When you are shopping for energy efficient replacement windows, a good place to start is window performance. First, you should consider the ratings on windows. Did you know that regardless of the outside temperature, heat can be gained directly through your windows? The SHCG (Solar Heat Gain Coefficient) rating will tell you exactly how much of the sun’s heat is blocked by your windows. Keep in mind that the SHGC rating you should get depends on your climate. Since you live in a climate like Toronto, you want to go for windows with a higher SHGC. This way, your windows will be much more efficient at keeping the warm air inside during winter. Your window expert will gladly tell you exactly what SHGC rating you should get for our climate.

Air leakage is also an important factor to look at. Basically, air leakage measures how many cubic feet of air can pass through your windows in the span of a minute. The important thing to remember is that the lower the Air leakage rating is, the less air can pass through your windows, thus decreasing your energy bills. The third rating to check out is known as the U-factor. If you want the best insulation, you will want to get windows with a higher U-factor rating.

Gas fills go a long way towards energy efficiency 

Consider getting gas fills (Argon or Krypton) in the space between the window panes. Argon is the cheapest and most commonly used, but Krypton gas offers better performance than Argon, and it takes up slightly less space. Filling the space between the glazing with gas helps a window’s energy efficiency in two different ways. First, it reduces heat loss, because gas allows heat to pass through the window more slowly than plain old air. Also, since gas is heavier than air, it reduces convection losses, which increases your window’s energy efficiency.

Glazing for energy efficient replacement windows

Low-E is a special, microscopic coating that is applied to the surface glass of windows to reflect solar energy. Low-E is a very valuable tool for energy efficient window replacement, because the same Low-E coating that keeps heat inside your home during winter, can keep the unwanted heat out in summer. This way, you can keep the inside of your Toronto home cooler, and therefore cut down on air conditioning bills at the same time.

The benefits of energy efficient window replacement

Energy efficient window replacement in Toronto will give you better comfort, and increased light and views. You will even be able to lower your heating and cooling costs. What’s more, when you purchase energy efficient windows, you will be doing your part to help protect the environment. Here at Brock, we have been specializing in energy efficient window replacement for over 26 years. Give us a call today for your free consultation!

Brock Doors and Windows Inc
278 Orenda Road Brampton, ON L6T 4X6
(905) 791-2850
2131 McCowan Rd Scarborough, ON, M1S 3Y6
(416) 293-9777

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