Re: [GBlist] attic ventilation

["Steven Shepard" <sbtdesigns@earthlink.net>]

I don't know about the climate in the People's Republic of Berkley but in
South Texas it's not hard to figure out that heated air inside an attic will
always be hotter than ambient air temperatures.  Seems like a ladder and
thermometer would prove that.


SBT Designs
25840 IH-10 West #1
Boerne, Texas 78006
210-698-7109
FAX: 210-698-7147
www.sbtdesigns.com
----- Original Message -----
From: <Robseelig@aol.com>
To: <greenbuilding@crest.org>
Sent: Tuesday, October 23, 2001 10:29 PM
Subject: [GBlist] attic ventilation


> I am about to insulate my attic.  My architect has suggested that I
install a fan connected to a solar panel to vent out the hot air.  The idea
being one only needs to exhaust hot air when it is hot.  It was recently
suggested to me that while this seems logical it basically does very little.
The idea being one is not replacing the heating attic air with cooler air,
as the air outside is hot also. The alternative suggestion was to have the
fan blow cooler night air in (with a cross vent installed)- dramatically
cooling the attic.
>
> I live in Berkeley CA which is a temperate climate.
>
> It was also suggested to remove the passive attic vents. Simply insulate
the attic - having the passive vents does nothing to keep the attic cooler
during the day as the temperate outside is also quite hot.
>
> Ay great insights.  Thanks,
>
> Robert Seelig
>
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______________________________________________________________________
This greenbuilding dialogue is sponsored by REPP/CREST, creator of
Solstice http://www.crest.org, and BuildingGreen, Inc., publisher of
Environmental Building News and GreenSpec http://www.BuildingGreen.com
______________________________________________________________________