So I made this a number of years ago. It will (eventually) span all the way across the porch (hopefully next year) BUT i have a small problem. It's more or less secure across the top, but the bottom flops around in the wind despite a wood frame behind. The screws are also puling away from the foam (its foam, so its soft) so the frame in the back is coming loose. Anyone have any suggestions for making it more stable for next year?