A perforated tarpaulin Tarpaulins are also utilized for ad printing, most notably for billboards. Perforated tarpaulins are usually employed for medium to substantial advertising, or for defense on scaffoldings; the aim with the perforations (from 20% to 70%) is to reduce wind vulnerability. Thanked 29 Instances in nine Posts Arc https://pergola17036.wikilentillas.com/1382828/pergola_options