A Perforated tarpaulin Tarpaulins are also useful for ad printing, most notably for billboards. Perforated tarpaulins are typically used for medium to significant promotion, or for protection on scaffoldings; the intention from the perforations (from twenty% to 70%) is to lower wind vulnerability. Thanked 29 Occasions in 9 Posts Arc https://pergola83682.pennywiki.com/4572309/pergola_options