CE Lunch Series: Managing Exterior Cement Stucco Moisture Vapor Drive in Warm, Humid Climates

Managing Exterior Cement Stucco Moisture Vapor Drive in Warm, Humid Climates

1 LU/HSW

Course Description: "The challenge posed in the warm, humid climate of the south US region causes significant water management and vapor drive issues on the exterior envelope of stucco clad structures. There are several methods to manage the water and moisture vapor, and we will examine each to understand which provides thebest option for both mass walls (i.e. Block or Precast Concrete) and framed walls (i.e. OSB sheathing on wood studs for residential structures and glass-mat sheathing on steel framed commercial structures). We will also examine the specific IBC, IRC and Florida Building Code language and requirements for exterior water management in both residential and commercial applications and provide guidance to minimize intrusion and prevent customer complaints and litigation."

Learning Objectives: Upon completion of this course, the participant will be able to:

1. Understand the specific challenges of using cement stucco in warm, humid climates versus dry climates by examining the water resistance and moisture vapor drive of common applications.

2. Examine water management options as described in the IBC, IRC and Florida Building Code.

3. Learn which water management systems work in warm, humid climates and which may not.

4. Designing and detailing stucco cladding for code compliance and limiting of liability.

5. Research new potential moisture vapor permeability management options and best practices to address the potential shortfalls of exterior stucco cladding installations.