[Greenbuilding] Airtight windows

[Sacie Lambertson]

On Sun, Oct 28, 2012 at 10:36 AM, Bob klahn <Home-NRG at dnaco.net> wrote:

> Lance,
>
> One guideline that has been implied but not stated in any reply I've read
> is that whatever approach you choose, the innermost pane must be the
> air-tightest to limit condensation.  The old "rule of thumb" was five times
> tighter than subsequent panes, if there is any leakage.  This allows any
> leakage (drying) to be to the outside.
>
Re Bob's note on tight windows, we're now moving into the winter heating
season.  Our windows are starting to condensate at the base on the inside.
Many of you have suggested this is the penalty of winter.  Isn't there
anything I can do about it?  With the windows I have?  Or, are there
windows out there that don't condensate in the winter?  Are there windows
that don't leak cold air to the inside from the outside glass per Bob's
dictum?  Or is this not a matter of tightness, but rather of the
differences in temperature?

thanks,  Sacie
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