A perforated tarpaulin Tarpaulins are useful for ad printing, most notably for billboards. Perforated tarpaulins are generally useful for medium to huge promoting, or for defense on scaffoldings; the intention in the perforations (from 20% to 70%) is to reduce wind vulnerability. Thanked 0 Times in 0 Posts Pergola Installation https://izmir-awning59692.mappywiki.com/1385392/izmir_pergola_an_overview