The dealing with commercial or industrial flat roofs must demonstrate proficiency in heat-welded membrane systems, such as TPO (Thermoplastic Polyolefin) or PVC (Polyvinyl Chloride), which require specialized equipment and certified technicians for proper installation. The seams of these membranes are fusion-welded using hot air to create a joint that is often stronger than the membr... https://kkroofspecialist.com.sg/roofing-contractor-singapore/