In some instances, contractors will use specialized coatings to encapsulate old, possibly lead-containing, paint layers on older metal roofs in Singapore. Encapsulation is a method where a new, thick, high-performance coating is applied over the existing paint to permanently seal it. This technique is often used when complete removal of the old coating is not feasible or would create ... https://kkroofspecialist.com.sg/painting-metal-roofing-singapore/