Thermal expansion and contraction—the movement of the metal as temperatures rise and fall throughout the day—must be meticulously managed in any metal-roofing-singapore installation. Standing seam systems utilize a clip system that locks the panels in place while still allowing them to glide slightly as they expand or contract. If the system is improperly fixed (over-fastened or rigid... https://kkroofspecialist.com.sg/metal-roofing-singapore/