We are fixing up an old log cabin about 30m2 that has been used as a painting/carpentry shed for the last 50 years, and apparently a forge before that. It's going to be a sleeping room in part of it, so we are working on the floor, which was previously filled with a mix of sawdust and soil.
If I understand correctly, it should first have macadam, then age-resistant plastic on top of that. On top, you can place stones as a plinth, bearers, underfloor, and floor joists roughly.
My question is how can you lay a plastic on macadam and then place bearers supported by concrete stones (or possibly natural stone) without the plastic getting full of damage? 🤔
A small photo during the teardown!
Was it wet in the old filling then? If not, you had an excellent structure as it was. Maybe it would have been enough to just add a little and put down a new floor?
If I understand it correctly, it should first be on macadam, then age-resistant plastic on top; you can then place stone as a plinth, bearing beams, joist supports, and floor joists approximately.
I would have placed plinths on as untouched ground as possible. Then gravel and plastic around the plinths.
Was it wet in the old filling then? If not, then you had an excellent construction as it was. Maybe it would have been enough to just add a little and lay a new floor?
No, it wasn't wet, planning to install water/sewage and I thought I'd try to get a bit more insulation than 5" in the floor.
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