A perforated tarpaulin Tarpaulins may also be useful for advertisement printing, most notably for billboards. Perforated tarpaulins are usually employed for medium to massive advertising, or for protection on scaffoldings; the purpose on the perforations (from 20% to 70%) is to lower wind vulnerability. Thanked 29 Occasions in 9 Posts https://izmir-awning28742.wikievia.com/10385919/the_best_side_of_izmir_pergola