[Cob] Re: drain plane The Mobile Home

[dirtcheapbuilder-Charmaine Taylor]

On Apr 8, 2006, at 8:12 AM, Barbara Roemer wrote:

>  Cob is very permeable, as is bale with an earthen
> plaster.  Because of the permeablility to vapor and moisture, you can 
> get
> condensation on your metal walls with either, something to assiduously
> avoid.


ahh yes-- I didn't even address the moisture issue.. the metal walls 
will sweat and keep the   base  clay coat touching them moist ..I know 
conventional builders will use  building paper-  15 lb felt- to create 
that barrier over ANY hard surface, then you are essentially applying a 
clay coat to mesh webbing and that paper.

but for her purposes of just  experimenting she can still go for it. It 
is fun to see someone  not just yakking about 'what if' but going 
outside and doing it.

I have my doubts the cob will stick to the corrugations, but if she 
does attach the wire mesh  or  sacking then she has a better chance for 
success.

Lee is doing good "scientific"  playing...trying something dfferent on 
each area.




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