Moisture Mapping Acceptable Moisture Levels
What is Moisture Mapping?
Moisture mapping is the process of determining the moisture content of a building material or structure. This information can be used to assess the risk of moisture damage and to develop a plan for remediation. Moisture mapping is performed using a variety of methods, including:
- Infrared thermography uses a thermal imaging camera to detect areas of high moisture content. This method is non-destructive and can be used to scan large areas quickly.
- Electrical resistance probes are inserted into the material to measure its electrical resistance. This method is destructive but provides more accurate results than infrared thermography.
- Moisture meters measure the moisture content of the material using a variety of techniques, such as microwaves or capacitance.
Acceptable Moisture Levels
The acceptable moisture level for a building material or structure depends on a variety of factors, including the type of material, the climate, and the intended use of the space. However, general guidelines for acceptable moisture levels are as follows:
- Wood: 8-12%
- Concrete: 4-6%
- Gypsum board: 10-12%
- Insulation: less than 5%
What is an Acceptable Damp Reading?
A damp reading is a measurement of the moisture content of a material using a moisture meter. Acceptable damp readings vary depending on the type of material and the intended use of the space. However, general guidelines for acceptable damp readings are as follows:
- Wood: less than 19%
- Concrete: less than 50%
- Gypsum board: less than 10%
- Insulation: less than 5%
If the moisture content of a material or structure exceeds the acceptable level, there is a risk of moisture damage. Moisture damage can cause a variety of problems, including:
- Mold growth
- Rot
- Structural damage
- Health problems
If you suspect that a material or structure has excessive moisture, it is important to contact a qualified professional for further evaluation and remediation.