[Cob] cob vs adobe

[Leslie Moyer]

I think if "longevity" is your primary goal, then going with regular 
clay bricks or firebricks fired at high temperatures might be the best 
solution. 
--Leslie

Mary Lou McFarland wrote:
> I was thinking that once you had your adobe over the sand form then  you could top it with a good deal of clay straw and let that set then finish off with the cob or cob sculpture.  I think that the straw clay would absorb any uneven contraction as the top cob dried and there would be fewer concerns as the adobe would already be dried and less prone to cracking that way.
>
> If I go to the effort of building my own oven I want to insure it's longevity, so want to consider every aspect.
>
> Mary Lou
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