Moisture mapping is the process of identifying areas where moisture is present within a building. It can be used to identify leaks, assess the extent of water damage, and develop a plan for drying out the structure. Moisture mapping can be performed using a variety of methods, including visual inspection, moisture meters, and infrared cameras.

### Acceptable Moisture Levels for Internal Walls

Acceptable moisture levels for internal walls vary depending on the type of wall construction and the climate. In general, moisture levels in internal walls should not exceed 15%. Higher moisture levels can lead to mold growth, structural damage, and other problems.

### What Should Moisture Readings Be for Internal Walls?

Moisture readings for internal walls should be taken using a moisture meter that is specifically designed for this purpose. Moisture meters can be purchased at most hardware stores.

To take a moisture reading, insert the probes of the moisture meter into the wall at a depth of about 1 inch. The moisture meter will then display the moisture content of the wall.

If the moisture reading is higher than 15%, it is important to investigate the cause of the moisture and take steps to correct the problem. Moisture problems can be caused by a variety of factors, including leaks, condensation, and poor ventilation.

### Additional Tips for Moisture Mapping

In addition to using a moisture meter, there are a number of other things you can do to identify moisture problems in internal walls. These include:

– Looking for signs of water damage, such as stains, peeling paint, or crumbling plaster.
– Feeling the walls for dampness.
– Using a flashlight to look for mold growth.
– Listening for the sound of dripping water.

If you suspect that there is a moisture problem in your home, it is important to have it investigated by a qualified professional.