A perforated tarpaulin Tarpaulins may also be useful for advertisement printing, most notably for billboards. Perforated tarpaulins are typically employed for medium to huge promoting, or for protection on scaffoldings; the aim on the perforations (from 20% to 70%) is to reduce wind vulnerability. Thanked 29 Instances in 9 Posts https://izmirtente01339.magicianwiki.com/1252216/not_known_facts_about_izmir_pergola