A perforated tarpaulin Tarpaulins may also be employed for advertisement printing, most notably for billboards. Perforated tarpaulins are usually employed for medium to huge marketing, or for defense on scaffoldings; the aim of the perforations (from 20% to 70%) is to lessen wind vulnerability. Thanked 29 Moments in nine Posts https://izmirpergola93198.oneworldwiki.com/6643908/the_fact_about_izmir_pergola_that_no_one_is_suggesting