Improving Seal on Old Double Hungs?

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Old 09-13-13, 03:09 PM
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Improving Seal on Old Double Hungs?

While I have this window dis-assembled, is there any simple way to improve the sealing of the sashes? Mine have about 1/4" of side play, rattle and leak a lot of air.
 
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Old 09-13-13, 04:51 PM
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Maybe brass fin weatherstrip.
 
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Old 09-13-13, 05:31 PM
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Thanks X

That is an old time solution that would accommodate the not perfectly square side jambs, or whatever you call them.
 
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Old 09-14-13, 12:26 PM
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I used brass leaf. I don't know if that is the same as fin, but it seems to work well. It is tricky to get the upper sash back in because the leaf springs out and hangs up on the sash cord knot socket. I got it past by inserting a long screwdriver down the cord dado and pushing the leaf in while raising the sash. The next window I am tackling is so tight in its tracks that I probably can't improve the seal with anything.
 
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Old 09-14-13, 04:19 PM
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I keep having more questions about these old windows. I have two that I have freed the sashes and they are moving smoothly and seating both on the sill and the header. However, the two sashes won't line up in the center to allow the cam lock to work. I just thought I would ask here prior to running them thru my table saw. It appears to me that they never did lock as they are misaligned by 3/4". These are numbers 4 and 5 out of 6 total. The first 3 aligned ok.
 
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