Materials + Details

Workshop

TH27 - Exposing Exposed Concrete: Design, Construct, Maintain

Speaker(s)

• 

  Erin Regan, P.E. (NY)

  Consulting Engineer
  Simpson Gumertz & Heger Inc.
• 

  Sean O'Brien, P.E. (NY, MA, 14 others), LEED AP

  Senior Principal
  Simpson Gumertz & Heger Inc.

Exposed concrete walls have become an increasingly popular architectural feature on buildings. However, when concrete is left exposed to the elements, its performance, durability, and watertightness require careful consideration to prevent underperformance. Exposed concrete walls are susceptible to cracking and spalling which result in leakage, aesthetic issues and, in some cases, structural failure. This presentation will review design and installation considerations for professionals when specifying exposed concrete walls including crack mitigation, thermal performance, structural design, detailing at openings, long-term quality control, and methods of repair. These topics will be reinforced with relevant industry standards and failure case studies. At the end of this presentation, designers will understand the depth of design and maintenance plans required for long-term success when specifying exposed concrete walls.

Learning Objectives:

• Know the differences between “rainscreen” barrier system and exposed concrete as a barrier
• Recognize risks associated with the use of exposed concrete
• Understand design and construction basics for exposed concrete
• Discuss long-term quality control, maintenance, and repair