Designing an efficient building envelope includes the complex task of locating all the necessary control layers in relation to each other. In some situations combining a number of these layers simplifies the task. This course explores combined water-resistive barrier (WRB) and air barrier (AB) sheathing systems, their functions, relevant codes and standards, types available, and how they compare to traditional water and air barrier systems.

Presented by various experts on behalf of Georgia-Pacific Gypsum .

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