ROOFTOP® is the pioneer and the first company to produce the double wall corrugated uPVC roofing profiles in Indonesia. We have the original patent for this type of roofing that can be found on Indonesian government Direktorat Jenderal Kekayaan Intelektual’s website. ROOFTOP® has been manufactured by PT. Sumber Djaja Perkasa since 2004 and has been proven to be the best until today. Thousands of national as well as multinational projects across Indonesia and South East Asia have used ROOFTOP®