“Brown Surface Mold” does not rot wood nor present a health threat unless you have allergic reactions to other molds. It is primarily limited to the wood in the crawl space under the building and does not move into living areas because it can not find suitable conditions in the living areas. No treatment or remediation is recommended unless there are other conditions present. This mold can grow at low moisture levels and can get on the wood in building supply warehouses and during construction of your home or business.