A perforated tarpaulin Tarpaulins are also used for ad printing, most notably for billboards. Perforated tarpaulins are usually employed for medium to huge marketing, or for protection on scaffoldings; the purpose with the perforations (from 20% to 70%) is to scale back wind vulnerability. Thanked 0 Occasions in 0 Posts https://izmirpergola14566.wikirecognition.com/1380190/izmir_pergola_an_overview