My deck has a railing around it with posts every 8 feet or so. The deck floor is 10 feet off the ground and attached to the wall of the house. I want to put a light roof structure over the deck to provide shade, and one end can tie into the wall of the house. How can I attaach the uprights that will support this roof to the railing? are there hardware brackets that would do it? I looked all around Home Depot. I'd think that since this is a light-weight trellis-type roof not bearing any weight except perhaps vines at some point and I think it will allow enough air flow through so there won't be an issue with wind catching under it.