Asbestos in building materials requires specialized removal and creates substantial remediation costs that can exceed property values in severe cases. Lead-based paint presents health risks and regulatory obligations that affect property use and rental potential. Mold and moisture problems indicate building envelope failures requiring immediate attention to prevent structural damage and health claims. VOCs from building materials can make spaces unsuitable for sensitive occupants while creating long-term health risks. Radon gas accumulation requires testing and potential mitigation systems representing significant ongoing costs. Each contamination type creates different liability exposures and remediation requirements that impact property profitability.