1. Should the moss be treated as Asbestos Contaminated? The short answer: Generally, yes. Moss doesn't just sit on top of the sheet; it sends "roots" (rhizoids) into the surface of the asbestos cement. As the moss grows and expands, it physically prys apart the top layer of the cement matrix. When the moss is pulled away—or falls off naturally—it often takes tiny asbestos fibres with it. Therefore, any moss removed from an asbestos roof should be treated as Asbestos Contamina

Asbestos cement roof sheets were once widely used in industrial, commercial, agricultural & domestic buildings. However, over time, these roofs face a silent but serious threat— moss growth . Moss doesn't just affect the appearance of the roof; it actively contributes to the deterioration of asbestos cement roofing materials . In this article, we explore why moss grows on asbestos sheets, how it damages them, and what property owners can do to prevent long-term structural iss