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Summer Energy Efficient Windows – Part 2
By Solar energy | June 5, 2009
Summer Energy Efficient Windows – Part 2
I love windows.
They allow light into an otherwise dark spaces. They provide restful views of the green outdoors when work requires you to be indoors. They allow clean air to circulate and freshen up your living spaces.
On the other hand, windows usher summer heat inside to compete with your air conditioning.
So if you are in the market for more energy efficient widows it’s time to do some homework.
Last time I posted about the U-factor.
Next, check the solar heat gain coefficient. This number measures how well windows block heat from the sun. The coefficient is a number between 0 and 1. A low number is what you want. Usually, you want a number from .25 to .8. Lower numbers indicate better heat blocking capacity.
Next time you’re in your local home improvement store, check out their window selections and locate the solar heat gain coefficient.
Topics: Reducing energy use, Windows, home maintenance | No Comments »