Crowned Planks from High Moisture

What is an acceptable moisture reading in a hardwood floor?

Excessive moisture in hardwood planks can lead to cupping, crowning, and other problems. To prevent these issues, the moisture content of the planks should be within an acceptable range. According to the National Wood Flooring Association (NWFA), the ideal moisture content range for hardwood flooring is between 6% and 8%.

When the moisture content of the planks is too high, the wood will absorb moisture from the surrounding air and expand. This can cause the planks to cup or crown. Conversely, when the moisture content of the planks is too low, the wood will release moisture into the surrounding air and shrink. This can cause the planks to crack or split.

There are a few things that can be done to prevent the moisture content of the planks from becoming too high or too low. These include:

• Maintaining the relative humidity of the home between 30% and 50%.
• Using a humidifier or dehumidifier to control the moisture content of the air.
• Installing a vapor barrier under the hardwood flooring.
• Ensuring that the hardwood flooring is properly installed and sealed.

By following these tips, you can help to prevent crowned planks and other problems caused by high moisture.