Methods to Measure Moisture in Internal Walls

What should moisture readings be for internal walls?

For internal walls, a moisture reading of less than 15% is generally considered acceptable. Readings between 15% and 20% indicate a moderate moisture level, while readings above 20% indicate a high moisture level. High moisture levels can lead to mold growth, structural damage, and health problems.

How to Measure Moisture in Internal Walls

There are several methods that can be used to measure moisture in internal walls. These methods include:

• Moisture meters: Moisture meters are electronic devices that measure the electrical resistance of a material. The higher the electrical resistance, the drier the material. Moisture meters can be used to measure moisture levels in both wood and concrete.
• Infrared cameras: Infrared cameras can be used to detect moisture in walls by measuring the surface temperature of the wall. Moisture will cause the surface temperature of the wall to be cooler than the surrounding area.
• Hygrometers: Hygrometers measure the relative humidity of the air. Relative humidity is a measure of the amount of moisture in the air. A high relative humidity can indicate that there is a moisture problem in the wall.

It is important to note that these methods are not always accurate. The accuracy of the reading can be affected by the type of material being measured, the thickness of the material, and the presence of other factors such as temperature and humidity.