A Perforated tarpaulin Tarpaulins may also be useful for advertisement printing, most notably for billboards. Perforated tarpaulins are typically useful for medium to massive promotion, or for protection on scaffoldings; the goal on the perforations (from 20% to 70%) is to reduce wind vulnerability. Thanked 29 Instances in 9 Posts https://izmirawning91008.theobloggers.com/40361552/pergola-things-to-know-before-you-buy