A perforated tarpaulin Tarpaulins are employed for ad printing, most notably for billboards. Perforated tarpaulins are usually used for medium to big advertising, or for defense on scaffoldings; the purpose from the perforations (from 20% to 70%) is to reduce wind vulnerability. Pergola need to be connected to the house https://claytonpxbgh.scrappingwiki.com/1361249/pergola_options