A perforated tarpaulin Tarpaulins may also be used for ad printing, most notably for billboards. Perforated tarpaulins are typically useful for medium to huge advertising, or for defense on scaffoldings; the intention from the perforations (from 20% to 70%) is to lessen wind vulnerability. Thanked 0 Moments in 0 Posts https://izmir-pergola59235.wikitron.com/1398809/pergola_no_further_a_mystery