A perforated tarpaulin Tarpaulins may also be useful for ad printing, most notably for billboards. Perforated tarpaulins are usually used for medium to substantial marketing, or for cover on scaffoldings; the aim in the perforations (from 20% to 70%) is to lessen wind vulnerability. Thanked 29 Instances in 9 Posts https://judahzzwrl.hamachiwiki.com/1382600/5_essential_elements_for_pergola