We build houses (and other buildings) so we can maintain an inside environment different from the one outside. For hundreds of years, we primarily heated buildings.
In the last 50 years or so, cooling has become widespread. Much more recently, we’ve put effort into intentionally controlling humidity in buildings. The American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE) has published “acceptable” indoor conditions that range near 70 to 75 degrees Fahrenheit (F) and 30 to 50 percent relative humidity (RH). These conditions guide us in determining the expected in-use moisture content of wood flooring.
Click the link to learn more from this great article.
