A Perforated tarpaulin Tarpaulins can also be employed for ad printing, most notably for billboards. Perforated tarpaulins are generally used for medium to massive advertising, or for protection on scaffoldings; the purpose of your perforations (from 20% to 70%) is to lower wind vulnerability. Thanked 29 Situations in 9 Posts https://pergola85824.mybuzzblog.com/13864873/pergola-things-to-know-before-you-buy