Preparation is a vital step for any roof-repairs-contractor before applying new sealant or materials. The surface must be cleared of algae, moss, and dirt which thrive in Singapore’s humid air. If the repair area is not medically clean, new coatings will fail to adhere, leading to premature peeling. Contractors use high-pressure washing and chemical treatments to prepare the substrate... https://kkroofspecialist.com.sg/roof-repairs-contractor/