Surface preparation is a signature step for any top-tier roof-repairs-contractor. Before applying any new waterproof membranes or protective coatings, the roof must be meticulously cleaned. High-pressure water jetting is typically employed to remove years of accumulated grime, algae, and loose debris. Without this clean foundation, even the most expensive repair materials will fail to... https://kkroofspecialist.com.sg/roof-repairs-contractor/