Those of us who live in the Great Lakes Region experience a great diversity of weather conditions. During the spring thaw and the typical rainy weather during that time, our buildings are attacked by the most moisture statistically possible during the weather cycle. We also experience significant “freeze-thaw” conditions during this same season, more than any other place in the United States. When the spring thaw arrives, it does not become warm all at once. Normally we have weeks of above freezing temperatures during the daylight hours, and below freezing during the nighttime hours. The spring weather cycle is harder on your building exterior than the freezing winter conditions.