Moisture Mapping is a non-destructive testing method that can be used to measure the moisture content of wood. This information can then be used to determine if the wood is ready to be painted. ### Wood Moisture Content The moisture content of wood is a measure of the amount of water that is present in the wood. Wood's moisture content is usually expressed as a percentage of the wood's oven-dry weight. ### What should the moisture content of wood be before painting? The ideal moisture content of wood before painting depends on several factors, including the type of wood, the type of paint being used, and the climate in which the wood will be used. However, as a general rule of thumb, the moisture content of wood should be below 15% before painting. ### If the moisture content of wood is too high, the paint may not adhere properly and could peel or blister. Additionally, high moisture levels can cause rotting of the wood. Conversely, if the moisture content of wood is too low, the wood may shrink and crack, which could also cause the paint to fail. ### Moisture Mapping can help ensure that the wood is at the correct moisture content before painting. Moisture mapping can be performed using a variety of methods, including: - Electrical resistance meters - Pin-type meters - Microwave meters - Nuclear meters Once the moisture content of the wood has been determined, the appropriate steps can be taken to adjust the moisture content if necessary. This may involve drying the wood or adding moisture to the wood. ### Conclusion Moisture mapping is a valuable tool that can be used to ensure that wood is at the correct moisture content before painting. This can help to prevent problems such as peeling, blistering, cracking, and rotting. ### Contact a Moisture Mapping Professional Today If you are planning to paint wood, it is important to have the moisture content of the wood tested to ensure that it is at the correct level. A moisture mapping professional can help you with this process. Contact a moisture mapping professional today to learn more about how moisture mapping can benefit you.