Commercial construction techniques have changed by tightening the structures to prevent thermal leakage. This can be attributed to the demand for energy efficiency. This change in the construction process has led to less air infiltration, which has contributed to moisture problems. The Keene Driwall™ building envelope products are designed to eliminate moisture and moisture vapor while increasing ventilation. Keene’s Driwall™ products can be used on several different types of commercial exterior applications, such as stucco, EIFS or brick.