Waterproofing is a core competency of a metal-roof-contractor. Beyond just laying the metal panels, they must expertly handle the "vulnerable points" such as skylights, vents, and valleys. These areas are prone to leaks if not flashed correctly. A professional contractor uses high-grade sealants and custom-fabricated flashing to create a seamless barrier. Their goal is to ensure that ... https://kkroofspecialist.com.sg/metal-roof-contractor/