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Maintaining a clean roof on the Sunshine Coast is essential due to the region's humid, subtropical climate, which accelerates the growth of mould, lichen, algae, and gloeocapsa magma. However, the cleaning agents used to eradicate these stubborn biological organisms can pose severe hazards to surrounding landscaping, domestic pets, and the local marine ecology if wash water is not managed responsibly. As environmental guidelines continue to tighten across Queensland in 2026

Roofs on the Sunshine Coast work hard. Between the humidity, coastal salt air, heavy summer rain and strong UV exposure, they pick up black mould, algae, lichen and moss faster than roofs in drier parts of Australia. When it is time to clean, homeowners usually face one key question: should you use soft washing or pressure washing? The answer matters, because the wrong method can shorten the life of your roof and even void a manufacturer's warranty. Understanding th