The use of specialized fasteners is a detailed but essential aspect of metal roofing Singapore installation. For exposed fastener systems, the screws must be made of corrosion-resistant materials (like stainless steel or specific coated carbon steel) and equipped with high-quality, UV-resistant neoprene or EPDM washers. These washers are the primary seal against water penetration at e... https://kkroofspecialist.com.sg/metal-roofing-singapore/