A perforated tarpaulin Tarpaulins are also used for advertisement printing, most notably for billboards. Perforated tarpaulins are usually used for medium to big promoting, or for defense on scaffoldings; the purpose with the perforations (from 20% to 70%) is to scale back wind vulnerability. Thanked 29 Moments in nine Posts https://marcovwuso.lotrlegendswiki.com/1383950/the_ultimate_guide_to_izmir_awning