Earn: AIA approval pending; 1 IIBEC CEH (pending); 0.1 IACET CEU
Roof leaks and water in wall assemblies are not good for the building. The first reaction is: let’s fix the leak, but then you realize that it is not raining. If there is no rain, you should not get bulk water entry. We overlook the real reason for water in building assemblies because we do not consider all means of moisture transport. Many people then jump to the conclusion that the material used as a water-resistive barrier does not have a high enough perm rating. This presentation will cover all the ways that moisture moves in a building, show why you should not rely on the perm rating of a single material and show you where you could get thousands of gallons of water into the building envelope.
Learning Objectives:
- Determine how moisture moves in the building enclosures.
- Identify the top two reasons why moisture shows up in buildings and causes damage.
- Discuss why the water vapor transmission rate of materials is overrated.
- Identify why moisture problems in buildings will grow and what can be done to manage the risk.
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