What does consistent moisture near windows often indicate?

Consistent moisture near windows is often a sign of insufficient insulation or air leaks. When there are air leaks around windows, outside air can infiltrate the home, leading to a temperature difference between the indoor and outdoor environments. This temperature differential may cause condensation to form on the surfaces of the windows and nearby areas, particularly in cold weather when warm, moist indoor air comes into contact with the cooler window surfaces. Proper insulation helps maintain the internal temperature and prevents cold drafts, reducing the likelihood of moisture accumulation. Therefore, addressing any issues related to insulation and air sealing is crucial for maintaining the overall energy efficiency and comfort of the home.