[Greenbuilding] passive house in NY

[Reuben Deumling]

My buddy who makes windows has pointed out that single glazed windows, even
doubled up pairs of sashes, don't 'fail' the way what we used to call
thermopane windows do. In other words single pane windows can be expected to
last a century with a bit of care and maintenance, whereas a thermopane
window is probably going to fail after 20-30 years. Not all windows are
built to replace that glass very easily, though I'm sure one could work on
the design a bit to make that easier.  Any thoughts?

On Thu, Oct 27, 2011 at 5:17 PM, Alan Abrams <alan at abramsdesignbuild.com>wrote:

>
> yes, triple glazing, by spending an extra 15- 20%,  to increase the
> performance of windows by +/- 40-50%.  if windows at 10% of floor area
> represent something like 20% of heat transfer of the house, then it strikes
> me as a bargain.
>
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