Humidity plays a crucial role on the condition of hardwood flooring because wood is a natural material. The impact depends on factors such as climate, wood quality, and finish type, but some effect is always present.
Wood expands and contracts based on changes in relative humidity, which measures the moisture in the air as a percentage of the maximum amount the air can hold at a given temperature before condensation occurs.
The stability of your hardwood floors—how well they resist expanding or contracting—largely depends on maintaining consistent relative humidity levels in your home.
Small, occasional fluctuations in humidity are typically harmless. However, excessive moisture or overly dry conditions can damage hardwood flooring or reduce its aesthetic appeal over time.
When relative humidity consistently exceeds 60%—common in rainy climates or hot summers—moisture can penetrate the wood, causing it to expand. Conversely, levels below 30%, often seen in cold winters, can cause the wood to contract. Aim to keep humidity between 40% and 50% year-round for optimal results.
Achieving this balance is straightforward with proper HVAC settings and, ideally, a dehumidifier. This approach not only protects your hardwood flooring but also enhances overall comfort in your home.
Consistency is key: strive to maintain stable humidity levels regardless of outdoor weather conditions.
A word of caution: rooms like basements and bathrooms tend to have consistently high humidity, making solid hardwood flooring less suitable. In such cases, engineered hardwood is an excellent alternative due to its superior stability compared to solid wood planks.