A perforated tarpaulin Tarpaulins also are used for ad printing, most notably for billboards. Perforated tarpaulins are usually used for medium to substantial promoting, or for cover on scaffoldings; the goal with the perforations (from 20% to 70%) is to reduce wind vulnerability. Thanked 29 Times in 9 Posts Arc https://pergola82487.blog-ezine.com/34170510/5-tips-about-izmir-awning-you-can-use-today