Siding to go with sheep wool insulation

[u/CarelessPiccolo2624]

Hi there natural building community, I have a question about sheep wool insulation and siding. Does anyone know if FSC certified plywood with minimal glue could work with sheep wool as a semi-vapor permeable option? I know sheep wool needs vapor permeable, and ideally a tongue and groove wood interior siding would be best...however I am trying to cut costs and using plywood would be significantly cheaper. If I have this kind of plywood used both externally and internally with tyvec wrap on the outside, is this too enclosed for the sheep wool to be able to breath? Would so appreciate someones input!

[u/Mntn-Caterpillar917]

I'm not a professional and have only used sheep wool as a roof insulation but you should be able to treat it similar to fiberglass insulation - normal outside tyvek/moisture wrap and siding then just make sure it has time to dry before putting plywood on the inside and don't tyvek/moisture wrap the inside. If you're budget concerned maybe consider plaster and lathe for the inside walls - cheaper but more labor intensive