Precision in flashing and sealing is what distinguishes a great from a mediocre one. Flashings are the metal strips used to seal joints and transitions around vents, chimneys, and walls. If these are not custom-fabricated and installed with high-grade sealants, they become the primary source of leaks. A professional contractor uses advanced bending machines to create bespoke flashing... https://kkroofspecialist.com.sg/metal-roofing-contractor-singapore/