[Cob] Earthen floor with lime? Recipe?

[Neva Alsip]

Jill, does it also have to do with:

1. The height of the interior floor in relation to the exterior 
ground level?  and

2. The typical humidity levels for your area?

-- Neva in Oklahoma

------- Original Message -------
>From    : Jill Hogan[mailto:jill.hogan at mat.org.za]
Sent    : 9/6/2011 6:35:26 AM
To      : coblist at deatech.com
Subject : RE: Re: [Cob] Earthen floor with lime? Recipe?

For me if you have a thick enough stone/gravel base it is not 
water from below but from above and the vapour barrier traps 
the water in the cob and thats when the floors start gettin 
mildrew, mould, or even break up.

That is just my half penny input for what it worth, from my 
obsession of building with no or as little plastic as possible


On 2011/09/06 01:17 AM, Henry Raduazo wrote:
> In my earth floor, I used 6 mill plastic instead of 
cardboard. it is not as environmental, but it is cheap and it 
is required as a vapor barrier in the VA. Code.
>
> Ed
> On Sep 5, 2011, at 6:11 PM, Jill Hogan wrote:
>
>> I have beautiful successful lime render floors. We dug down 
200mm put down 100mm stone, stamped it covered it with 
cardboard so the cob cant get into the stone. 80mm cob and then 
to layers of lime render 20mm
>> When dry we oil with raw linseed oil and turps and bees wax 
in the last layer 4 layers in all and the floors are lovely 
much gentler than cement, warm in winter and cool in summer, 
look lovely and once sealed dont chip. Personally wouldn't use 
tiles, to hard and cold and clinical. Dropped two glass bowls 
on my floor last night neither broke didn't even chip.
>>
>> On 2011/09/05 11:33 PM, Brian Ziggy wrote:
>>> Hiya all:
>>>
>>> I am seeking information regarding earthen floors with a 
lime content. I'd
>>> like to add some alkaline material to my floor to possibly 
help stave off
>>> potential mold and mildew growth. The plan is to do an 
earthen/lime finish
>>> floor, and then tile over it. The lime may be unnecessary, 
but for some ease
>>> of mind it seems like a worthwhile experiment.
>>>
>>> Have you ever added lime to an earthen floor mix? What kind 
of ratio did you
>>> use?
>>>
>>> Thanks in advance.
>>>
>>> - ziggy
>>>
>>
>> -- 
>> *Jill Hogan*
>> McGregor Alternative Technology Centre "MAT"
>> PO Box 365
>> McGregor
>> 6708
>>
>> www.mat.org.za< http://www.mat.org.za> 
>> Phone: 023 625 1533
>>
>> Signature
>>
>> "Be the change you wish to see" Mohandas Ghandi
>>
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-- 
*Jill Hogan*
McGregor Alternative Technology Centre "MAT"
PO Box 365
McGregor
6708

www.mat.org.za < http://www.mat.org.za> 
Phone: 023 625 1533

Signature

"Be the change you wish to see" Mohandas Ghandi

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