throw up a plastic see threw tarp never got to worry about rain it is always cover i need it especaly sents i live in washington rains all the time made my own little green house out of tarps for walls and plastic roof no worrying at bugs or wind or unwanted nabors cut down the trees arowned it last summer so no attention and lots of sun it is perfect for those unespected rains and can throw a heater in there becuse it is covered perfect for those cold temps of washington if your going to grow might as well go all out!!!