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Summer Energy Efficient Windows – Part 4
By Solar energy | June 11, 2009
Summer Energy Efficient Windows – Part 4
Did you know that air can pass through windows? Solar energy can heat up our Texas air to egg frying temperatures during the summer months. And that hot air can come into our homes!
No window keeps all air out. Air seeps through around window joints and assembly. Really, that’s a pretty good thing; we all need to breathe.
But some windows let less air inside than others.
Windows have an “air leakage” rating. This value measures cubic feet of air passing through one square foot of window area per minute.
The lower this value, the less air passes through the assembly, the better it is for your electric bill. Look for a rating of .3 or less.
Window selection is more complicated that I first thought!
More next time.
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