Re: [GBlist] attic ventilation

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

Another option might be to consider a solar attic vent to move air out of
the attic space during the hottest part of the day.  You can see one on our
web site.  They move 800 CFM and will cover an area of 1200 square feet.


SBT Designs
25840 IH-10 West #1
Boerne, Texas 78006
210-698-7109
FAX: 210-698-7147
www.sbtdesigns.com

Please note we are moving our email address to sbtdesigns@earthlink.net.
Please update our information in your records.


----- Original Message -----
From: "Alan Abrams, A.I.B.D." <awabrams@starpower.net>
To: <greenbuilding@crest.org>
Sent: Friday, August 31, 2001 2:26 PM
Subject: [GBlist] attic ventilation


> this is to seek advice on whether or not to ventilate an attic area which
> will be used for heating and air conditioning equipment and associated
> ductwork and mechanical connections.
>
> the attic is above three habitable levels (including full finished
basement,
> which is 75% below grade).  the house is generally frame construction with
> minimum of  3 1/2" of icynene insulation in the walls.  it is located near
> washington, dc ("hazy, hot and humid" summers and relatively mild winters,
> with a few weeks in mid Jan-early Feb were the temp may not get above
> freezing.
>
> the options, generally, are to insulate the upper ceiling with +/-4" of
> icynene and 6-8" of batt, and ventilate the attic conventionally with
soffit
> and ridge vents--or to insulate the rafter bays, either shooting the foam
> against underside of the sheathing, or creating baffles and air channels
> under the sheathing, and insulating the bays.  baths and laundry will be
> carefully ventilated, with provision for exterior make up air.
>
> i would love to seal this space up and reduce the load on the hvac equip,
> but i am concerned about moisture buildup.
>
> alan abrams aibd
>
>
> ______________________________________________________________________
> 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
> ______________________________________________________________________
>


______________________________________________________________________
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
______________________________________________________________________