Bad attic ventilation, the resulting damage, and mold remediation costs

This home had mold covering almost 100% of the bottom side of the roof deck due to poor attic ventilation. Because this was a large home, the mold remediation bids ranged from $8,000 to $10,000. What a pricey mistake just because the soffit vents weren’t kept clean and the bathroom exhaust fans still discharged into the attic space. Some simple maintenance and redirection of the exhaust fans years ago would have saved them literally thousands!