Moisture mapping is the process of measuring and recording the moisture levels within a structure. This is an essential step in identifying and addressing moisture problems, which can lead to a variety of health and safety issues for occupants.

### Acceptable Moisture Levels

Acceptable moisture levels vary depending on the material being measured and the environment in which it is located. However, for most residential and commercial buildings, the following general guidelines apply:

– **Wood:** 6-12% moisture content (MC)
– **Concrete:** 4-6% MC
– **Sheetrock:** 0-5% MC
– **Carpet:** 30-50% relative humidity (RH)

It is important to note that these are just general guidelines, and the actual acceptable moisture levels for a specific building or structure may vary.

### What is a Bad Moisture Reading?

A bad moisture reading is any reading that is significantly higher than the acceptable levels listed above. This could indicate that there is a moisture problem that needs to be addressed. Some common signs of a bad moisture reading include:

– **Mold or mildew growth**
– **Musty or stale odors**
– **Warped or buckled flooring**
– **Paint or wallpaper peeling**

If you have any of these signs, it is important to have your building tested for moisture by a qualified professional. They will be able to identify the source of the moisture and recommend the best course of action to correct the problem.