[Greenbuilding] blow ye winds

[Stephen Thwaites]

from Alan's post:
"...... depressurizing the room and thus providing potential draw from some 
leeward
opening for cross ventilation."

Either that or the air that blows in, gets sucked out before it has much of 
a chance to freshen anything........

Sorry to be so flipant but, my money is still on cross ventilation.
(Although i'm interested in hearing about your experience with experiment)

Stephen Thwaites
Thermotech Fiberglass Fenestration
Ottawa, ON  Canada

----- Original Message ----- 
From: "Alan Abrams" <alan at abramsdesignbuild.com>
To: <greenbuilding at listserv.repp.org>
Sent: Thursday, July 26, 2007 10:32 AM
Subject: [Greenbuilding] blow ye winds


> We're going to try out a theory-call it the carbureted window effect-that 
> if
> you have an instance where you're placing a pair of casement windows in a
> wall, to install them with the hinges back-to-back, instead of along the
> outer edges.  If you have them the normal way, and they're both opened -
> they defeat breezes slipping along the wall.  With windows opened
> back-to-back; maybe 30d beyond the plane of the wall - gull wing fashion -
> breezes along the wall are captured by the leading window, accelerated (by
> virtue of the diversion across the vee shape), and released out the 
> trailer,
> depressurizing the room and thus providing potential draw from some 
> leeward
> opening for cross ventilation.
>
>
>
> Or so says Newton, right?
>
>
>
> Alan Abrams, AIBD
>
> Principal, Abrams Design Build
>
> www.abramsdesignbuild.com
>
>
>
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