3.Your wood floor is constantly moving due to seasonal changes and the relative humidity in your home. You may see your floor expand and contract. You will see areas of high in some forums, and the joints between the panels will be most evident in the coldest months then in the warmer ones. Despite being a floor it is not always perfectly flat, there are ways to reduce inequality. Keep the relative humidity in the atmosphere, between 40%- 60% by using a humidifier in the cold, less humid months, and a dehumidifier in the summer months. As much as possible, maintain a constant temperature in your house. This will help reduce the effects of expansion and contraction.