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

Anne Judge anne.judge at alum.mit.edu
Wed May 11 15:49:38 PDT 2011

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.


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