I would hardly ever put one while in the lanai. The humidity from It will be not be very good With all the ceiling's drywall. Even For those who have tailor made wants for your tarp, you are able to attain out to Carolina CoverTech. They've got industrial sewing devices https://izmirtente69808.wikikali.com/1269332/5_tips_about_tarpaulin_you_can_use_today