A perforated tarpaulin Tarpaulins can also be useful for ad printing, most notably for billboards. Perforated tarpaulins are usually utilized for medium to big promoting, or for defense on scaffoldings; the intention in the perforations (from 20% to 70%) is to reduce wind vulnerability. Thanked 29 Instances in 9 Posts https://collinnhlrs.hyperionwiki.com/1227615/a_review_of_pergola