A perforated tarpaulin Tarpaulins are also employed for advertisement printing, most notably for billboards. Perforated tarpaulins are typically used for medium to large promotion, or for defense on scaffoldings; the purpose on the perforations (from 20% to 70%) is to reduce wind vulnerability. Thanked 0 Occasions in 0 Posts Pergola https://izmirtente35678.azzablog.com/34276449/detailed-notes-on-izmir-pergola