Cob: Domes ...

[goshawk at gnat.net]

corbelling is when you move inward a bit on every bag(using the 
earth bags this example) thus the circle gets tighter as you lay 
bags. The shape of the dome is not round but sort of a lancet type 
arch. They will be  higher than a round dome,  that is the height 
can be the same as the diameter of the dome. 

The down pours are not what you have to worry about, it's the long 
slow drizzles that last days and days, thats what you have to worry 
about.

Pat
L&L



On 8 Dec 99, at 21:19, Rosemary Lyndall Wemm wrote:

> Does anyone have information on cob dome and vault building?
> 
> I've been reading a bit on Hassar Fahey's house building for the poor in
> Egypt.  Fascintating, but low on "how to" and whether such techniques
> could be translated to different climates successfully.  How do they stand
> up in torrential tropical downpours?  How are they water-proofed? If you
> water-proof the dome how does that affect the "breathing" of the rest of
> the building. How high are the best domes?  How can they be safely
> interrupted for a cupola? What is "corbelling"?
> 
> - Rosemary
> 
>  ---------------------------------------------------------------------
>  Rosemary LYNDALL WEMM, B.A.(Hons), M.A.(Neuropsych.), B.Mus.(Inst.),
>  T.S.T.C.,etc.   _--_|\ Clinical Neuro-psychologist                       
>       Perth/      \ Perth, Western Australia   
>  lyndall at neurognostics.com.au  -->\_.--._/ -------------------
>  http://www.neurognostics.com.au ---------------v-
> 
> 


Pat Newberry
http://www.gnat.net/~goshawk