I-WENRUN PVC (i-polyvinyl chloride) ye-roof membranes inikeze ukuvikeleka okunokwethenjelwa nokusebenza okuqinisekisiwe, okubenza babe ukukhetha okudumile nokonga phakathi kwabaxhumanisi bophahla kanye nezicacisi.Ukumelana kwe-PVC kumakhemikhali, amafutha, umlilo, nama-punctures kwenza kube ukukhetha okuhle ezinhlobonhlobo zezakhiwo.