So, my partner and I are writing an offer on a cute little cabin. It's framed out and the exterior is done, but it needs to be insulated and finished on the inside. FWIW we're in zone 4. I have a bunch of the denim insulation I bought for cheap a few years ago that we're planing to use.
I have some experience with earthen plasters, but only on natural structures like strawbale, cob, earthbag, etc. I am wondering what would be a cost-effective, and more importantly, low impact way to use earthen plaster over conventional framing and insulation. Should we do lath? Should we put up plywood? What will the plaster attach to? Any tips?
The second thing is, and this might depend on cost, but I wondered if stapling up chicken wire netting might work to hold your earthen plaster?
posted 10 months ago
I am wondering more about a barrier between the insulation and the plaster. Could I just do denim insulation, wire, plaster? That seems like it might not be sturdy enough or would have moisture issues, but I'd be happy to be wrong on that.
Hi Rachel, I would suggest that you need something for the plaster to adhere to that is a little more substantial than just the insulation. Also, the expansion and contraction between the studs and insulation (being dissimilar materials) would most likely cause cracks that will never stop reoccurring. Some sort of stiff and non smooth surface such as conventional steel lathe or more natural reed mat should do the trick. In the days before drywall, the norm was putting up narrow horizontal boards with small spaces between and plastering over that.
Here are some reed mat pictures to give you an idea...
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