I-tarpaulin ingavala ngempumelelo izinga lokushisa nemvula, futhi inokusetshenziswa okubanzi.Ingasetshenziselwa ukupakisha ekuthuthweni kwezimpahla, ukuvimbela izimpahla ukuthi zingawi noma imvula nokushiswa yilanga, kanye nokuqinisekisa ukulethwa okuphephile kwezimpahla endaweni oya kuyo.