Q: Thickness of polyacrylic domes?

[Bob Rowlands]

Jay, that's a good point about using a rope to stop the roof cover from ballooning up in heavy wind. I made a rope bridle for my 16' yurt out of a fifty foot piece of retired 11mm climbing rope. It encircled the rafters about half way up the span. I preformed five equidistant loops in it (the circumference of the roof half way up the rafter span, divided by five) and anchored those loops with cordage to ground anchors.

That not only cuts the ballooning but also helps anchor the yurt to the ground if it isn't attached to a platform. Mongolians do this as they travel various pasturelands. My first 14' yurt was destroyed from being picked up and tossed 25 yards in a massive blizzard. Sticks and canvas aftermath looked like a crashed WWI plane.

It's all a learning experience. That one was particularly tough to take. Eight full days of work blown to smithereens in seconds. Just like everything else, you figure it out as you go. Experience is the REAL teacher.