A perforated tarpaulin Tarpaulins are also employed for advertisement printing, most notably for billboards. Perforated tarpaulins are usually used for medium to big advertising, or for defense on scaffoldings; the aim of your perforations (from 20% to 70%) is to reduce wind vulnerability. Thanked 29 Moments in nine Posts Arc https://emilioceczt.wiki-jp.com/1373106/the_fact_about_izmir_pergola_that_no_one_is_suggesting