What matters more than the color of the growth
Dark growth can occur in many conditions. The materials involved, moisture source, affected area, and disturbance risk are more useful than guessing the mold type by sight.
- Dark growth on drywall, framing, ceilings, or insulation
- Recurring black or dark spotting around a moisture source
- Growth after a roof, plumbing, or appliance leak
- Large or expanding areas of visible contamination
- Dark growth discovered behind stored items or finishes
- A musty area with visible staining and ongoing dampness