Does the canvas shrink in cold weather? Setting up at campground in below 40 degree weather. Had to force bunks to open fully and couldnt latch the shepard hooks to ceiling. Also seemed that roof couldnt raise completely.
Canvas isn't the only thing that'll shrink severely at that temperature!
Because the canvas is so cold and stiff it would be very difficult to stretch it enough to set-up properly.
Camping in a tent camper at -40F...you're a braver man than I.!
When I was a scout leader we camped at Gettysburg in 20 degree temps. The propane for the stoves was freezing we had to wait for the temp to rise before cooking.
Sleeping was not bad, the mummy bags are good for 0 degree temps. Just really hard to get out of them in the morning. The boys would not crawl out until we made a campfire.
I am in pigeon forge right now. It is 30 now and will be down into the teens tomorrow night. With snow. I have both sets of the popup gizmos, set for top of bunks and a set for inside the bunks. They are keeping us incredibly warm. Best investment for my camper I have ever made.