[Cob] supporting a one ton tank

[Ocean Liff-Anderson]

Actually, cob has incredible compressive strength, similar to a  
concrete wall.  I don't know the numbers - Shannon, can you pitch in  
some figures?  But I think the walls circling a small bathroom and  
closet, if made thick enough, would be able to support your water  
tank.  But best to get some engineering...



On Jul 6, 2011, at 11:07 AM, Damon Howell wrote:

> I want to incorporate a water storage tank in the attic of my house  
> plans and use gravity fed water. I already have a 300 gallon tank  
> which sits on a 6 inch concrete slab now. I figured when it's full  
> it weighs 2,100 lbs. A cob wall cannot support that weight I think.  
> So what are your thoughts on how to install this tank up there?  
> What beam sizes for what spans? Is there info out there for this  
> kind of thing? I was thinking since the bathroom is usually  
> smallest and most in need of water, the tank could be supported by  
> the bathroom and closet walls. They probably couldn't be made out  
> of cob though. Feedback would be nice. Thanks, Damon in Georgia, USA
>
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