[Greenbuilding] Airtight windows

[Sacie Lambertson]

Excellent article Kat, thanks.  I had not read it when it first arrived on
my computer.  Sacie

On Sun, Oct 28, 2012 at 12:31 PM, Kat <molasses at q.com> wrote:

>  You may find Martin Holladay's recent blog on Green Building Advisor
> titled "Rating Windows for Condensation Resistance" helpful.  He suggests,
> "Condensation on your windows is often an early warning sign that your
> interior humidity is too high."
>
>
> http://www.greenbuildingadvisor.com/blogs/dept/musings/rating-windows-condensation-resistance
>
> Kat
>
>
> On 10/28/2012 10:20 AM, Sacie Lambertson wrote:
>
> 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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