Invasive moisture testing is a diagnostic procedure performed to determine the presence and extent of moisture within a building structure. This testing is typically conducted when there are visible signs of moisture damage, such as water stains, mold growth, or peeling paint, or when a building occupant reports symptoms related to moisture exposure, such as respiratory problems or allergies.
During invasive moisture testing, a moisture meter is used to measure the moisture content of building materials. The acceptable damp reading will vary depending on the type of material being tested and the environmental conditions. However, in general, a damp reading of less than 16% is considered acceptable for most building materials.
Invasive moisture testing involves drilling small holes into the building materials to insert moisture probes. The probes measure the moisture content of the material at different depths, providing a detailed profile of the moisture distribution.
It is important to note that invasive moisture testing should only be performed by qualified professionals. Improper testing can damage building materials and may not provide accurate results.