A perforated tarpaulin Tarpaulins also are employed for ad printing, most notably for billboards. Perforated tarpaulins are usually employed for medium to big advertising, or for protection on scaffoldings; the purpose of the perforations (from 20% to 70%) is to reduce wind vulnerability. Thanked 29 Moments in 9 Posts Arc https://daltonrxzek.mysticwiki.com/1358162/the_izmir_pergola_diaries