What Is a Drying Log and Why Is It Important?

A drying log tracks the moisture levels in affected areas. You can record readings from a moisture meter, the date and time of each check, and the temperature and humidity in the room. Note which drying equipment you ran, such as dehumidifiers or air movers, and for how long.

Also include any visible changes you notice, like warping wood or musty smells. Write down when you first found the water and what you did right away, like moving furniture or removing wet carpet. This record helps you see if the drying is working or if you need to adjust your approach.

Begin your log as soon as you notice water damage. Use a notebook, a spreadsheet, or even a note app on your phone. The key is to be consistent, checking the same spots at the same times each day, if possible. Pick several locations, like near the base of walls, under cabinets, and on flooring.

If you have a moisture meter, use it to get numerical readings. If not, you can note dampness by touch or with a plastic sheet test, where you tape plastic to a surface and check for condensation. Write down everything, even if it seems minor. That detail can matter later.

If you hire local water damage pros to handle the drying, your log gives them a starting point. They can see which areas have been slow to dry and focus their work there. The pros can also use your readings to decide where to place dehumidifiers or air movers for better results.

Your log also helps the pros track their own progress. They can compare their moisture readings with yours to confirm the drying is working. This cooperation makes the whole process smoother and more efficient, which is good for your home and your peace of mind.