For decades, designers of attics and crawlspaces have used cross-ventilation to minimize potential for moisture accumulation and condensation. However, spurred by recent claims of energy savings and moisture control, unvented attics have become popular...


Energy use, indoor air quality (IAQ), comfort, moisture intrusion, and durability are important considerations for design/construction professionals. To create a healthy, energy-efficient living space, a facility must be able to control airflow and water...