Resistant Subfloors

What is an acceptable moisture reading in a hardwood floor?

Moisture readings in hardwood floors should not exceed 12%. Readings above this level indicate excessive moisture, which can damage the floor and lead to buckling, warping, or cupping.

  • Determining Moisture Level: Use a moisture meter to measure the moisture content of the subfloor before installing hardwood flooring.
  • Acceptable Range: The ideal moisture level for a subfloor is between 6% and 12%.
  • Consequences of High Moisture: Excessive moisture in the subfloor can cause the hardwood flooring to absorb water, leading to swelling, buckling, and other damage.
  • Control Moisture: Install a vapor barrier or use a moisture-resistant subfloor to prevent moisture from entering the subfloor.
  • Monitor Regularly: Regularly check the moisture levels in the subfloor, especially during seasons with high humidity.
  • Professional Inspection: If the moisture levels in the subfloor are consistently above 12%, consult a professional to identify and address the source of the moisture.

Resistant Subfloors

Resistant subfloors provide a stable base for hardwood flooring, protecting it from moisture and other environmental factors.

  • Types of Resistant Subfloors:
    • Plywood
    • Oriented strand board (OSB)
    • Cement board
    • Moisture-resistant underlayment
  • Benefits of Resistant Subfloors:
    • Reduce moisture absorption
    • Prevent warping and buckling
    • Extend the lifespan of hardwood flooring