This article covers only the time factors. For what happens during drying and which equipment is used, see structural drying.
Factors that make drying faster or slower
| Factor | Effect on time |
|---|---|
| Amount of water and area affected | More water and more rooms take longer |
| Time before drying started | The longer materials stay wet, the more water they absorb |
| Material | Dense or layered materials hold water longer than thin or non-porous ones |
| Humidity and temperature | Humid air slows evaporation, which matters in Florida |
| Airflow and dehumidification | The right amount of equipment shortens the job |
| Building closed up or open | A closed building lets dehumidifiers work better |
| Water category | Contaminated materials may be removed instead of dried |
| Hidden moisture | Water inside walls and subfloors needs special drying methods |
How you know it is done
Drying is finished when moisture readings in the affected materials reach the dry standard for those materials. Ask the provider to show you readings from affected areas compared with unaffected areas of the same material. A dry-looking or dry-feeling surface is not proof.
Why the first 24 to 48 hours matter
The U.S. EPA says it is important to dry water-damaged areas and items within 24 to 48 hours to prevent mold growth. That is a target for starting and controlling moisture, not a promise that everything will be dry by then.
Things you can do while waiting
- Keep the AC running if the air handler was not affected and it is safe.
- Do not stack wet items against walls.
- Keep records of readings and visits.
- Report any new musty smell to your provider straight away.