Hi Chris,
Maybe I have posted this before, but in case I didn't, or you haven't seen it.
A few years ago when my wife and I were traveling in Mongolia, we often stayed in yurts. There I will confess they don't have some of the concerns the rest of the world has, but they do just fine.
Every yurt that I stayed in out of town, (they are also common in town), had a linoleum floor.
I was told when they buy a new yurt, because it isn't really an exact size, they buy rolls of linoleum that are about 2 meters wide and lay it out on the ground, and then add another width beside it and overlapping it until they had the coverage they wanted and then put them together with clear packaging tape about 2.5"/6cm wide. They set up the yurt on top of the floor, and then cut the linoleum to the proper size of that specific yurt, and move in.
When they move they take apart the yurt, but they don't take the floor apart they just fold "the wings" to the center and roll it up, (but not to tightly), for the move. When they lay it out the next time it shows them the exact size to recreate the yurt.
They also used a doubled layered square of carpet about 4"/10cm under each of the legs of the furniture to keep it from cutting or worrying through the linoleum. I could see a couple places they had used tape to patch a tear, but the only places I noticed were where furniture had escaped the carpet protectors.
It isn't a bathtub floor, but the climate there is very similar to Montana or North Dakota, I think. When it did rain they just mopped the water off the floor when it accumulated enough to be a problem, which always seemed to happen near the door, where raincoats came off, boots tracked in, and the ground became compressed enough/depressed enough from use, to create a bowl that start holding water.
Good luck on your project.
Rod
rod
yurtlocker.com
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