Rainwater Harvesting for Yurts

[Knecht]

Khana (chana) is a Mongolian term. It's the wall lattice and if I understand it right, they have some "standard" length of it and they recognize the yurt size by the number of these connected khanas that form the wall.
Hope my thread will give you some help. Also, read carefully what Bob says, it's usually worth it.

Tying the laths together with inner tube rubber...I would be a bit worried it might be too loose, as the rubber is not rigid enough. But it may work...and I guess it does, as your friend is using that.