I picked up a job replacing sash cords yesterday and the homeowner said
he was watching a home improvement show that illustrated a method for
insulating sash pockets. I can't imagine how that could be done while
allowing for the weights to go up and down. Just curious if anyone here
saw the same show.
Pat, That should work until the cord or chain breaks again. I don't think
it would be worth doing this since the wooden sash are so leaky to begin
with. I estimate a very small or no savings in energy, but I could be
The old sash windows in my house don't leak much at all, and they are
well over 50 years old. I get less drafts and leakage from them than my
brother gets out of his 5 year old "insulated" windows. No way would I
even think about replacing my old wooden frame windows
I can't imagine how unless you went through some sort of box assembly
against the window frame, then insulated outside that.
Which leads to two thoughts.
Second......... replacement windows, then you can insulate
No, but Anderson sells "pulley covers" which reduce the open space at
the top of the pulley:
Generally today the object is to eliminate the sash pulley entirely and
install retrofitted aluminum or vinyl friction channels, much more like
modern windows. Otherwise there are alternatives to the weight hardware
such as a tape balance, which winds up a little like your tape measure,
allowing the majority of the cavity to be filled with insulation.
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