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Course Description: AEC Daily: Rainscreen and Ventilation Solutions for Healthy Walls
The construction industry has experienced a significant increase in moisture-related problems in exterior walls. This presentation explains how a rainscreen wall system prevents moisture accumulation within walls by providing a means for drainage and ventilation, thereby prolonging the life of buildings. Discussion topics include air and moisture movement in the building envelope, building code and water-resistive barriers, and stucco and thin veneers in rainscreen systems.
Describe the forces that affect moisture movement through the building envelope and explain how moisture is managed through deflection, drainage, drying, and durability.
Discuss how proper rainscreen installation enhances the durability of buildings and contributes to healthier indoor environments by preventing mold growth.
Recall the water-resistive barrier requirements for exterior walls established in the 2021 International Building Code® (IBC®) and the 2021 International Residential Code® (IRC®).
State the advantages and challenges of using stucco in rainscreen systems and discuss rainscreen product solutions for stucco and thin veneer wall systems.