Weather Barriers

Water-managed wall systems depend on a well-detailed, breathable weather barrier. This lesson delves into the issues surrounding the permeability of weather-resistive barriers, and ties these to best-practice methods for integrating housewrap and flashing.

Learning Objectives

At the conclusion of this lesson, you will be able to:

• Compare low-perm and high-perm weather barriers
• Summarize the problems associated with low-permeable building wraps
• Recognize best-practice methods for integrating housewraps and flashing

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