Plaster demo · Living Earth Structures

Plaster demo

Here’s a little update showing what I’m working on today here at Cobville. I am plastering a cobin built about 20 years ago and explaining the earthen plaster I’m doing over wood. Again, if the wood is smooth, you’ll need to wrap it up with either flower paste with course sand added or primer with course sand added or something I’ve been using recently is something called methyl cellulose I get from Gold hill Clay plaster which works very similar to flour paste. You can also staple a chicken wire or hardware cloth to the wood, but that’s not very fun but it does work. Fortunately, in this case, the wood was rough enough that a Clay slip was all that was needed for the Cob to grab onto the wood. When this is dry, I’ll be doing a clay paint over everything which will consist of equal parts nice colored Red, Clay, very fine silica sand and the Methyl cellulose. I might add a little bit of Mica in it also to make it sparkle. It’s also impossible to do a lime blaster over everything as well followed by a lime wash, but to be honest with you I so prefer doing earthen plasters and if it’s applied, smooth enough and burnished well it does handle water pretty well

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Plaster demo