How Fast Does Mold Grow After Water Damage?
Faster than most people think, especially in a Georgia summer.
The typical timeline
| Time after water | What's happening |
|---|---|
| 0 – 24 hours | Water wicks into drywall, insulation and wood. Best window to start drying. |
| 24 – 48 hours | Mold can begin to grow on wet, organic materials. |
| 3 – 7 days | Growth may become visible; musty odors develop. |
| 1 – 3 weeks | Colonies spread; wood and drywall can deteriorate. |
What speeds it up
- Warm temperatures, roughly 70 to 90°F
- High humidity, which West Georgia has most of the year
- Materials with paper or wood, like drywall, subfloor and framing
- Dark, enclosed spaces: wall cavities, crawl spaces, under cabinets
What to do in the meantime
- Remove standing water and wet rugs
- Run the AC and a dehumidifier if you have one
- Open cabinet doors and move furniture away from wet walls
- Get professional drying started as soon as possible
Already seeing growth? See mold remediation.
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