There are several ways to prevent rain penetration. Some are basic, like single-line-of-defense systems known as face-seal walls. However, more effective solutions involve multi-layer defense assemblies, possibly including a rainscreen with a ventilated air gap and waterproof membrane.

Ultimately, success of any of these approaches will depend on the building materials chosen. So, this course will explore common building envelope components that are currently available to contractors. We will do so one layer at a time as we work our way inwards. 

1.  Explain the difference between structural and non-structural exterior wall sheathing   

2.  Determine the most appropriate veneer or siding to use for a project   

3.  Identify the primary methods of curtain wall construction   

4.  Summarize the means by which a rainscreen reduces infiltration of moisture into a building envelope   

5.  Apply knowledge of various air and water barriers into envelope design   

6.  Assess the pros and cons of various available options for exterior sheathing   

7.  Examine the use of sandwich panels in the creation of building envelopes   

8.  Use information presented to choose the type and thickness of insulation for wall design