A perforated tarpaulin Tarpaulins can also be useful for advertisement printing, most notably for billboards. Perforated tarpaulins are generally employed for medium to big marketing, or for cover on scaffoldings; the goal on the perforations (from 20% to 70%) is to lessen wind vulnerability. Thanked 29 Moments in nine Posts https://sergiojkfau.nico-wiki.com/1340281/fascination_about_pergola