Flashing, which includes all metal or membrane seals at roof transitions (valleys, penetrations, parapet walls), is the most vulnerable component of any roofing Singapore system and requires absolute precision. A skilled contractor uses compatible, high-grade materials and flexible, UV-stable sealants to manage movement and prevent water penetration at these junctions. Incorrectly ins... https://kkroofspecialist.com.sg/roofing-singapore/