A metal-roof-contractor will often use a specialized roll-forming machine to create custom panels right in your driveway. This "on-site fabrication" ensures that each panel is the exact length of your roof, eliminating the need for horizontal seams. Fewer seams mean fewer opportunities for leaks and a much cleaner visual appearance. Watching the machine transform a flat coil of metal ... https://kkroofspecialist.com.sg/metal-roof-contractor/