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