[Greenbuilding] old wood windows (was Exterior insulation retrofit)

[bill.allen at verizon.net]

Anne...love the idea....put a pvc or other pipe in the cavity for the weights to travel in and go wild with foam around them.  Sounds like the best way to seal the cavity to me....
Thanks
Bill

-----Original Message-----
From: Anne Judge <anne.judge at alum.mit.edu>
Sender: greenbuilding-bounces at lists.bioenergylists.org
Date: Wed, 11 May 2011 18:49:38 
To: Green Building<greenbuilding at lists.bioenergylists.org>
Reply-to: Green Building <greenbuilding at lists.bioenergylists.org>
Subject: Re: [Greenbuilding] old wood windows (was Exterior insulation	retrofit)


On May 11, 2011, at 3:11 PM, Reuben Deumling wrote:

> On Wed, May 11, 2011 at 12:03 PM, Bill Allen <bill.allen at verizon.net> wrote:
>   In addition to insulating the weight cavities (can anyone offer any details of the best way to do that?)
> 
> I cut rigid foam strips that enclosed the weights, leaving a column in which they could travel. I sealed the edges with caulk and covered it up with sheetrock. I doubt this is the best way, but it was not difficult. 

I've believe I've heard of someone putting in a pipe for the weight(s) to run in, then foaming around that.  Probably a good idea to switch to sash chain first as I would imagine it wouldn't be easy to access the weight pocket after that.

Anne


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