Thermal expansion must be carefully managed by any aluminum-roofing-material-singapore specialist. As the metal heats up under the sun, it expands in length. If the panels are fastened too tightly without room to move, they can buckle or pull at the screws. Professionals use thermal spacers and sliding clips that allow for this natural movement while maintaining a watertight seal. Und... https://kkroofspecialist.com.sg/aluminum-roofing-material-singapore/