Moisture intrusion in a wall system can cause building defects, as well as health ailments for building occupants, making rainscreens a very important tool in water mitigation. This course will review causes of moisture intrusion, specifically forces that drive rainwater into a building. We will identify rainscreen technologies, testing standards for rainscreens, the importance of considering wind loads and how commercial architectural wall panels can be used as a rainscreen.

Learning Objectives

  • Describe the cause and effect of moisture intrusion in a wall system.
  • Examine the importance of rainscreens and weather barriers in water mitigation.
  • Identify examples of rainscreen technology and testing standards that measure rainscreen performance.
  • Discuss how some commercial architectural wall panels act as a rainscreen and review how wind loads can affect their performance.