No evidence supports the moss-damages-roofs industry claim

Evidence

However, there is no scientific evidence to support or refute this claim. It seems unlikely that microscopic rhizoids could pose a serious threat to a well-built roof. One technical representative for a shingle company acknowledges that he’s never seen any damage by mosses. Why not just let them be? — Robin Wall Kimmerer, Gathering Moss, 396

Categorization

• QUESTION: Worth chasing: is there any roofing-industry research at all, and does the moss-roof removal industry rest purely on this unsupported claim?
• XREF: connects to: Moss absence on street trees signals neighborhood air pollution — Robin Wall Kimmerer, Gathering Moss: A Natural and Cultural…, 401; Industries invented harm thresholds they had no evidence to support — Albert Bandura, Moral Disengagement: How People Do Harm…, 1765

Broader Connections

• Industries invented harm thresholds they had no evidence to support #corroborates (0.90) — Albert Bandura, Moral Disengagement, 1765