Rethink Your Life! Finance, health, lifestyle, environment, philosophy |
The Work of Art and The Art of Work Kiko Denzer on Art |
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Cob: Re: Insulation etcmaureen & dale smith maureen at ez2.netTue Jul 20 21:16:38 CDT 1999
off list please Mike Holland wrote: > Sojourner wrote: > > >Would the wood embedded in the walls have to be PT? Or would normal > <untreated wood be ok, since the walls will not actually be wet (better > >not be!) This would act like vertical "lathe", like they used to use > >for plastering. > > Just for reference, one of the internal walls we removed was built with > vertical posts about 2 foot apart, with split oak laths nailed to them - the > kitchen ceiling/attic floor the same: the laths and posts had been there for > anything up to a century and showed no particular signs of rot or insect > attack. I strongly doubt that they were treated in any way. The lime in > the cob mix used round here tends to dissuade insects, anyway. > > >Would you have to take special steps to make certain that the cob mix > >would hold with the weight of the "lathe" and the siding? > > Then again, if you were going to go down this route, you might as well put > up a wooden framework against the cob wall once dry, and nail your > plasterboard/plywood/whatever to it - avoid the issue of the wall to lath > cohesion. We're actually using a steel framework in the bathroom area, if > only because it's quick. I don't enormously like the very smooth surface > this type of system gives you - it's somewhat at odds with the "not a > straight line nor right angle in sight" aspect of the rest of the house, but > you have to balance aesthetics with convenience sometimes - and in any case, > we can always lob some of the hemp/lime render on it later to soften the > edges, if we feel like it... > > Mike
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