[Cob] Metal and Cob

[Jill Hogan]

My feeling is that metal will spoil your beautifulcob ctructure. It is 
rigid cob moves and dances all the time. Metal is not reabsorbed back 
into the earths crust, why not keep it natural using materials that one 
day will just be reabsorbed leaving no litter we have enough we are 
passing on to those following us.


On 2010/05/22 07:26 PM, Kata Polano wrote:
> We are currently building a cob shop framed entirely with metal. We are
> using reclaimed water pipes, rebar, and galvanized fencing. We have been
> asking the same questions and getting different answers as well. Being that
> fire is the main concern where this building is, we decided to go for it. We
> will update the results after a year, or less if we see results. I would
> think that the wetter the climate, the more risk of rusting out.
>
> What are you thinking of using the metal for anyway??
> Kata
> Keep it Beautiful
>
>
> On Sun, Mar 14, 2010 at 3:12 AM, Shannon Dealy<dealy at deatech.com>  wrote:
>
>    
>> On Sun, 14 Mar 2010, David Anderson wrote:
>>
>>   I was wondering if we could get a consensus on metal objects in cob.  I
>>      
>>> think this has been talked about here in the past so, in that case, someone
>>> could just summarize what was said.  In my mind I have conflicting ideas
>>> that I have read in different places saying both that metal will rust out in
>>> cob and others saying that it will be fine as the cob will keep it dry.
>>>
>>>        
>> Hi David,
>>
>> I doubt there is a single right answer, probably depends on your soil. One
>> case that I am aware of had metal embedded in a connection and it completely
>> corroded away in less than a year.  My recollection (which is rather fuzzy)
>> is that they were nails of some sort, and that it turned out the soil used
>> in the wall was somewhat acidic.
>>
>> FWIW.
>>
>> Shannon C. Dealy      |               DeaTech Research Inc.
>> dealy at deatech.com     |          - Custom Software Development -
>> Phone: (800) 467-5820 |          - Natural Building Instruction -
>>    or: (541) 929-4089 |                  www.deatech.com
>>
>>
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>>      
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>    


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