I would never ever set one within the lanai. The humidity from it would be not be great with the ceiling's drywall. Even In case you have custom made requires to your tarp, you can arrive at out to Carolina CoverTech. They've industrial sewing machines that make various stitches, including https://izmir-tente51369.techionblog.com/34115033/the-best-side-of-tarpaulin