Selecting Storm Windows

Old 12-03-09, 12:37 PM
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Selecting Storm Windows

I'm trying to select storm windows to install on the outside of existing original prime windows. It's a house built in 1935, they are the wooden double-hung type. For the most part, for energy efficiency, we plan on sealing the prime window sashes and then installing storms. (There will be a few that remain operational for safety reasons.) We thought about window replacement but could find nothing affordable that would allow us to match to the existing wide wooden trim throughout the house.

We live in NE Tennessee where it doesn't get too hot or cold for extended times, but we want to save money on energy bills in the long run because we plan on being in the house indefinitely.

I've been reading on-line about low e-coatings, low air-infiltration ratings, quality construction indicators, etc. I called a window factory (that a local distributor carries), and they said their storms have never been rated for the air-infiltration index.

Would you all consider a window without this air-infiltration rating? Who are some quality storm manufacturers that I should consider? What about low e-coating? I appreciate any advise.

Old 12-03-09, 04:21 PM
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There are not many manufacturers of storm windows left so you'll have to get what ever you can find. Storm windows were never rated for air infiltration and they are available with low-e glass. I see one problem with the windows that you plan to seal. You may get condensation between the storm and the prime window and you won't be able to replace broken glass without unscrewing the entire storm window.
Old 12-03-09, 04:46 PM
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IMHO, storms are a waste of money from an efficiency point of view. They will not make much of a difference. Save the money and replace the windows, which will allow you to insulate all around the old framing, improve energy efficiency by 25-35%, and improve the value of the house. A good investment, especially if you are going to be there for a long time. And there is a tax credit for the right windows thru 2010. Glass must have a U factor or .30 or lower.

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