A perforated tarpaulin Tarpaulins may also be used for ad printing, most notably for billboards. Perforated tarpaulins are usually used for medium to large promotion, or for cover on scaffoldings; the intention of the perforations (from twenty% to 70%) is to lower wind vulnerability. Thanked 29 Occasions in nine Posts https://izmirawning59146.wikimidpoint.com/5042594/pergola_no_further_a_mystery