The lifespan of a metal roof coating is intrinsically linked to the quality of the surface preparation, estimated by experts to account for up to 90% of the job's success. In Singapore, this step must be rigorous due to high levels of biological growth. The roof must be professionally cleaned to remove dirt, grease, efflorescence, and, critically, any pervasive mold, algae, or fungal ... https://kkroofspecialist.com.sg/painting-metal-roofing-singapore/