[Cob] Coblist Digest, Vol 8, Issue 154

[The Roots]

An ideal way would be to vent cool air from the bottom wall of the shady 
side of the home or better yet the crawl space if there is one and 
create a vent/vents on the south side of the home that is high up on the 
wall which will carry the warm air out.  Natural convection is a very 
important thing to consider in all sustainable building models as it 
requires no energy inputs although a fan would more quickly move the air. 

Scott


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> Today's Topics:
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>    1. Re: Mosaics in the shower (Gergo Szekely)
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>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 21 Aug 2010 08:34:52 -0700 (PDT)
> From: Gergo Szekely <gergo.szekely at yahoo.com>
> Subject: Re: [Cob] Mosaics in the shower
> To: coblist at deatech.com
> Message-ID: <163973.1302.qm at web57906.mail.re3.yahoo.com>
> Content-Type: text/plain; charset=us-ascii
>
> I have been wondering if blowing the cold air inside or blowing the warm air 
> outside and pulling the cold inside is the more effective way of cooling the 
> house with a  fan. Any experiences?
>
> Thanks,
> --
> Gergo
>
>
>
> ________________________________
> From: Jill Hogan <jill.hogan at mat.org.za>
> To: Cary Hocker <chocker at gmail.com>; coblist at deatech.com
> Sent: Wed, August 18, 2010 2:39:10 PM
> Subject: Re: [Cob] Mosaics in the shower
>
> Hi Cary, this Jan our temperature went up to 55 degrees c, I must say only on 
> one day the day we started Little Cottage. Most of summer here is between about 
> 29 deg up to 46, 47, 48.I seems every summer is getting hotter are we surprized. 
> What gets me through this kind of heat is my cob house. We are fortunate to have 
> the highest varient of day and night temp in the western cape so I open all the 
> windows at night and in fact if still hot inside I put a fan on my nice broad 
> window sills and blow the cooler air inside and then first thing every morning I 
> close everything capturing the cool air inside. My house is bliss I see people 
> come in from outside and sort of collapse with relief in the coolness. I have 
> also planned the house so in summer no sun shines in and in winter the sun 
> streams in. My walls are 500mm thick so the heat never comes in through the 
> walls.
> Build it well and you will love your home like I do.
>
> On 2010/08/17 10:52 PM, Cary Hocker wrote:
>   
>> Jill, what a beautiful home you have. I'm curious what are your daily highs in 
>> the summer where you live? I've wanted to build a cob home here in Texas but 
>> have held off in part due to the high summer temps (avg. daily temp over 95 
>> degrees F/35 degrees C right now) - which, combined with high humidity in my 
>> part of the state, would make for an unpleasantly hot home in the summertime. 
>> I'm concerned about the home building up a huge reservoir of heat during the day 
>> and radiating it back all night. So I'm very interested in other's experiences 
>> in hot climates.
>>
>> Cary
>>
>> On Tue, Aug 17, 2010 at 7:00 AM, Jill Hogan <jill.hogan at mat.org.za 
>> <mailto:jill.hogan at mat.org.za>> wrote:
>>
>>      Using gloves we pick the leaves and then cut them up into a
>>     barrel. Wetop it up with water and leave the leaves brewing for
>>     three weeks at least. We then sive the leaves out and slake our
>>     lime int  the prickly pear water. We get a lovely creamy render
>>     mix that very rarely cracks. I also use this mixture watered down
>>     and with salt added for a paint over my buildings. As we live in
>>     the semi desert with intense heat in summer we get massive
>>     expansion and contraction so paint the buildings every year, just
>>     before the rainy season in winter,  I am in South Africa in what
>>     we call the Karoo.
>>
>>
>>     
>
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> End of Coblist Digest, Vol 8, Issue 154
> ***************************************
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>