Maintaining a stable indoor climate is the single most important factor in the long-term performance of hardwood flooring. Wood is a hygroscopic material, meaning it constantly gains or loses moisture to reach equilibrium with its environment. When indoor humidity levels fluctuate outside the 30-50% range, wood planks will expand or contract, leading to common issues like seasonal gapping or permanent cupping. During Oklahoma's humid summers and dry winters, mechanical humidification and dehumidification systems are essential to stay within these parameters. Following NWFA guidelines for environmental control ensures that the wood stays within the safe moisture content range relative to the subfloor. A variance of more than 4% moisture content between solid wood flooring and the subfloor often leads to failure. By controlling the interior climate, you prevent the cellular structure of the wood from undergoing excessive stress. If you suspect your humidity levels are frequently outside these standards, we recommend using a digital hygrometer to monitor your home's conditions and consulting with an HVAC professional to ensure your system can manage these requirements effectively.
Key considerations
- hardwood humidity requirements
- NWFA humidity guidelines
- wood floor climate control
- solid-wood
- engineered-wood
- hardwood-maintenance