A perforated tarpaulin Tarpaulins are also employed for advertisement printing, most notably for billboards. Perforated tarpaulins are generally used for medium to significant marketing, or for defense on scaffoldings; the aim from the perforations (from 20% to 70%) is to lower wind vulnerability. Thanked 29 Situations in 9 Posts Arc https://paxtonyyvrk.life-wiki.com/1392412/pergola_no_further_a_mystery