This product held up to wind. I suggest adding pvc piping inside as roof rafter system every 18 inches apart for snow load. I drilled a hole in the 1/2 pvc pipe and tide two together at the peak of the center beam and draped the over the beam to the top side rails. and duct tape them from sliding by the wind. I also added two tie-down over the top of the roof from the outside and stake it down to the ground as an added protection. I like this product. I give it a B+.