Rethink Your Life! Finance, health, lifestyle, environment, philosophy |
The Work of Art and The Art of Work Kiko Denzer on Art |
|
|
Cob: Re: Insulation etcMike Holland mholland at cyberservices.comMon Jul 19 13:46:06 CDT 1999
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
|