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given that you say sunlight reaches this area of the floor ( i assume you are not covering the entire floor) only in january and feb ( and by extension btw dec) and nov), and with only a 25% south wall glass area ( not 50 or 80), it is not that likely that the house is overheating to the point of requiring ventilation on a clear sunny day ( even the third in a row.) in the dead of winter. so the need for the mass beneath the proposed mat is not that great. why not try it in a non permanent way and see if the house overheats on sunny days<br><br>generally i prefer exposed concrete in direct gain passive solar houses, but sometimes aesthetics or foot comfort overrule. then you seek alternative storage, ( walls as suggested below) or water containers.<br><br>also some effort at movable night insulation in colder climates can achieve same results or better than added mass.<br><br>> From: greenbuilding-request@lists.bioenergylists.org<br>> Subject: Greenbuilding Digest, Vol 6, Issue 33<br>> To: greenbuilding@lists.bioenergylists.org<br>> Date: Sun, 27 Feb 2011 12:00:08 -0800<br>> <br>> Send Greenbuilding mailing list submissions to<br>> greenbuilding@lists.bioenergylists.org<br>> <br>> To subscribe or unsubscribe via the World Wide Web, visit<br>> http://lists.bioenergylists.org/mailman/listinfo/greenbuilding_lists.bioenergylists.org<br>> <br>> or, via email, send a message with subject or body 'help' to<br>> greenbuilding-request@lists.bioenergylists.org<br>> <br>> You can reach the person managing the list at<br>> greenbuilding-owner@lists.bioenergylists.org<br>> <br>> When replying, please edit your Subject line so it is more specific<br>> than "Re: Contents of Greenbuilding digest..."<br>> <br>> <br>> Today's Topics:<br>> <br>> 1. Bamboo Floor, Radiant Heat and Thermal Mass (Lynelle Hamilton)<br>> 2. Re: Bamboo Floor, Radiant Heat and Thermal Mass (kenn brown)<br>> 3. Re: Bamboo Floor, Radiant Heat and Thermal Mass (Frank Tettemer)<br>> <br>> <br>> ----------------------------------------------------------------------<br>> <br>> Message: 1<br>> Date: Sat, 26 Feb 2011 20:19:55 -0500<br>> From: Lynelle Hamilton <lynelle@lahamilton.com><br>> To: Greenbuilding <greenbuilding@lists.bioenergylists.org><br>> Subject: [Greenbuilding] Bamboo Floor, Radiant Heat and Thermal Mass<br>> Message-ID: <4D69A6BB.7080402@lahamilton.com><br>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed<br>> <br>> A question....<br>> How much mass would I lose by floating bamboo flooring over a slab floor <br>> in a passive solar home? South glass exposure is significant (25%) of <br>> south wall, but 3' overhangs allow direct sun in December and January only.<br>> <br>> Many thanks!<br>> <br>> Lynelle<br>> <br>> -- <br>> Effective immediately, please use the following e-mail address to reach <br>> me: lynelle@lahamilton.com<br>> <br>> <br>> <br>> ------------------------------<br>> <br>> Message: 2<br>> Date: Sun, 27 Feb 2011 09:35:35 -0600<br>> From: "kenn brown" <kenn2536@centurylink.net><br>> To: "'Green Building'" <greenbuilding@lists.bioenergylists.org><br>> Subject: Re: [Greenbuilding] Bamboo Floor, Radiant Heat and Thermal<br>> Mass<br>> Message-ID: <5F34A1CBB9E24E3880228528A42BDE18@environm787aa3><br>> Content-Type: text/plain; charset="us-ascii"<br>> <br>> Lynelle, <br>> Were you thinking of using an insulating material under the bamboo? I would<br>> like to replace a worn carpet with a 4X8 insulating material (preferable 4'<br>> x 8') (celotex?), then bamboo. Mine is over a pier and beam, continually<br>> shifting.<br>> Kenn Brown<br>> <br>> -----Original Message-----<br>> From: greenbuilding-bounces@lists.bioenergylists.org<br>> [mailto:greenbuilding-bounces@lists.bioenergylists.org] On Behalf Of Lynelle<br>> Hamilton<br>> Sent: Saturday, February 26, 2011 7:20 PM<br>> To: Greenbuilding<br>> Subject: [Greenbuilding] Bamboo Floor, Radiant Heat and Thermal Mass<br>> <br>> A question....<br>> How much mass would I lose by floating bamboo flooring over a slab floor <br>> in a passive solar home? South glass exposure is significant (25%) of <br>> south wall, but 3' overhangs allow direct sun in December and January only.<br>> <br>> Many thanks!<br>> <br>> Lynelle<br>> <br>> -- <br>> Effective immediately, please use the following e-mail address to reach <br>> me: lynelle@lahamilton.com<br>> <br>> _______________________________________________<br>> Greenbuilding mailing list<br>> to Send a Message to the list, use the email address<br>> Greenbuilding@bioenergylists.org<br>> <br>> to UNSUBSCRIBE or Change your List Settings use the web page<br>> http://lists.bioenergylists.org/mailman/listinfo/greenbuilding_lists.bioener<br>> gylists.org<br>> <br>> <br>> <br>> <br>> ------------------------------<br>> <br>> Message: 3<br>> Date: Sun, 27 Feb 2011 13:42:54 -0500<br>> From: Frank Tettemer <frank@livingsol.com><br>> To: Greenbuilding@bioenergylists.org<br>> Subject: Re: [Greenbuilding] Bamboo Floor, Radiant Heat and Thermal<br>> Mass<br>> Message-ID: <4D6A9B2E.8070308@livingsol.com><br>> Content-Type: text/plain; charset="us-ascii"<br>> <br>> An HTML attachment was scrubbed...<br>> URL: <http://lists.bioenergylists.org/pipermail/greenbuilding_lists.bioenergylists.org/attachments/20110227/98a93553/attachment-0001.html><br>> <br>> ------------------------------<br>> <br>> _______________________________________________<br>> Greenbuilding mailing list<br>> to Send a Message to the list, use the email address<br>> Greenbuilding@bioenergylists.org<br>> <br>> to UNSUBSCRIBE or Change your List Settings use the web page<br>> http://lists.bioenergylists.org/mailman/listinfo/greenbuilding_lists.bioenergylists.org<br>> <br>> <br>> End of Greenbuilding Digest, Vol 6, Issue 33<br>> ********************************************<br> </body>
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