Yurts For All Year Round
(The products we recommended are optionable)
If the yurt is used outdoors for all year round: thick white canvas fabric we call it a rain cover (apply Ultramar canvas & cotton Protector on inside & outside), and above here a lighter canvas fabric/ outer layer (apply Ultramar canvas & cotton Protector the inside & apply Ultramar parasol & Marquis Protector UV-resistant over the outer layer).
For living in the yurt year round: use the combination of fabrics: Polytex pro membrane sheet (windproof/waterproof and vapor-open) https://www.ecomerchant.co.uk/pro-clima-solitex and a rain cover (inside and outside treated with Ultramar canvas and cotton Protector) and on top of it an outer layer (treated the inside with Ultramar canvas and cotton Protector and treated the outside with Ultramar parasol & Marquis Protector UV-resistant).
The pictures show how to lay the Polytex Pro Membrane Sheets.