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D725A 02-25-2012 02:50 PM

Removing old sash weights
In preparation for some spray foam insulation of our attic, I need to remove four old sash weights from the framing of our two attic windows. I should have had it done when the windows were replaced; now they're kind of wedged in. I'm afraid of yanking them out and damaging the windows from the side pressure. I thought perhaps the colder months might be best without the summer humidity here in ny to expand the wood. In the attached photo you can see how the ballast is at the bottom of the channel which I believe is the tightest part. I thought if I can raise a it a bit to a slightly wider area which I could make even wider with a rasp......... any ideas? Leaving these in there would leave a gap in the insulaton/sealing.

oldognewtrick 02-25-2012 05:24 PM

Photo didn't show up, you can upload from your computer if you scroll down from the Reply Box to the box where it says Manage Attachments. Click on it and follow the directions. It's easy.

D725A 02-25-2012 07:24 PM

1 Attachment(s)
Thanks. Here's the photo--I hope.

nealtw 02-26-2012 09:52 PM

Are you planning on finnishing the attic into a living space?

D725A 02-26-2012 09:58 PM

more of a conditioned space than occupiable--to keep heat from escaping and lower the temperatures the AC has to work in.

nealtw 02-26-2012 11:12 PM

So you are insultating the space the AC unit is running in? If yes, that should be a question for the AC boys.

oldognewtrick 02-26-2012 11:21 PM

I think he is going to spray foam the exterior walls. When you do this you take the insulation to the exterior of the house envelope. The attic becomes conditioned space. I think he just wants to get the old sash weights out so it doesn't take up space that the insulation new insulation will occupy.

nealtw 02-27-2012 12:38 AM

the AC has to work in.

This is what got my attention.

inspectorD 02-27-2012 04:50 AM


Originally Posted by D725A (Post 68576)
I'm afraid of yanking them out and damaging the windows from the side pressure.

Use a half inch drill bit, and drill a few holes along side. Should wiggle out, with no vibration.

D725A 02-27-2012 07:38 AM

Thanks, so you mean drill the holes sideways, an inch apart or so to help give some wiggle room. great idea. As for the other comments on insulation, here is a link to the site on unvented attics: having trouble getting this link to stick:

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