I've had my hoop house run for 3 years I'm in northern Ohio and it does fine. I have it covered with plastic so my d'Uccles can get sun and in the winter the sides get insulated with snow. It works well for me. I'm using another one for a quarantine house for 2 Black AM pullets that I got at Ohio Nationals, they are doing fine in it. The sides are made of wood and the top is made of PVC hooped so rain and snow runs off. I have a black tarp to retain sun heat, but here in northern Ohio the sun never shines.