We still have "spring snowstorms" in the mountains and sometimes snow in town.
I have been getting in some "winter camping" by carrying up all three backpacking woodstoves and lighting up one after the other, all ready to go, in front of the Shangri-La 3 with the aluminized nylon panel inside on the opposite wall clipped to the screen nest ties I am not using for the bug screen nest I did not purchase.
It worked great.
It may be heavier than mylar sheeting, a 70D aluminized ripstop nylon, but I expect the aluminized nylon to be more durable and there is no mylar crinkling sound. I also got the 12" square sample to torture test for durability and to practice stitches on the thread-injector sewing machine.
I hope to get my RV up on the property as soon as the ground is reasonably dry. I don't want to tear up the access.
Hey! A great thing about the boat or RV-lifestyle is having a "base camp" home with you.