What causes condensation?

Common household activities such as cooking, showering, running a washing machine, or operating a dishwasher, contribute to higher moisture levels in the air. An example of condensation occurs every time you shower, when warm moist air contacts a cool mirror surface. Or leaving a glass of ice water at room temperature will simulate the same result. Some new or remodeled homes may also be subject to condensation, especially during the first year, because of the moisture content of building materials and greater insulating factors. In these cases, it usually takes one heating season for a home to dry out. It is impossible to eliminate humidity, but it is possible to control it.