[Cob] cob and cement

[goshawk]

It was more that cement plaster or stucco is a problem for
cob. What can happen is that it can trap moisture inside the
wall which is not good for cob. Like many things in life, it
a risk factor not an absolute. Lime is preferred because it
can breath and allow trapped moisture to escape better. 
 
I have found that a mud plaster over cement works great! Mud
addhears quite well to cement. Why you ask? I had a really
rough wall that had cement plaster on it. I smoothed it out
with a mud plaster, then limed over the mud and it looked
great. 
 
Pat Newberry
www.gypsyfarm.com
 
 
 
----- Original Message Follows -----
> I thought I read somewhere that cement and cob don't go
> together, that the cement breaks down the cob? Is that
> right?
> 
> I made a gargoyle with a pipe in the middle, with the idea
> to attach it to one corner of the house, where the rain
> would spout of it.  But if I make the cast, and use cement
> , can I attach it to the cob? Or was it just cement
> plaster or stucco that was the issue with partnering it
> with cob? 
> 
> jilly
> 
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