We bought these to surround our plants on our deck to protect them during the winter months. We (my wife) sewed them together to create different size panels specific to the sizes we needed for the different locations on our deck.So far they've held up well under the rain and in freezing temperatures ? ?Over the last several years we had curtains with a heavy rubberized liner. They're no longer available so this was our second choice/ alternate choice and we were skeptical because they seemed so much lighter in weight. We have been pleasantly surprised with the insulating factor. They seem to be as good as or previous curtains and are holding the temperature as well as the original ones. We'll know more in a couple days because the temps are dropping into the 20s over the next couple days. If there's any significant changes I'll update the post/review.