Attributes of Tyvek®: Water Barrier

To qualify as a water resistive barrier, and not just as an air barrier, a building wrap must resist water. In this lesson, you will examine the principal test methods used to evaluate the water penetration resistance of building wraps.

Learning Objectives

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

• Understand how the water resistance characteristics of water resistive barriers are evaluated
• Identify various water barrier tests
• Cite the advantages and disadvantages of different water resistance tests
• Understand why DuPont Tyvek® WRBs are the best choice as a water resistive barrier
• Gain a basic understanding of drainage in wall systems

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