In light of COVID-19, AIA Cincinnati chapter events will be held virtually through June 2021, unless stated otherwise.

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Academy Summit: Barriers, They Just Get in The Way

November 17 @ 12:00 pm 2:00 pm




12:00-2:00 pm


$25 AIA members (number required at registration)

$50 non-members

Program Description

*Zoom* Academy Summit: Barriers, They Just Get in The Way

Building envelope basics…we get it; 

Seminars on transition detailing…been there, done that;

But what we really want to know is… When does the wall assembly itself become a problem? What goes wrong when ‘normal’ wall assembly materials are used in the wrong order? What do you do with a material that will naturally hold moisture? What if you can’t get away from that dreaded thermal bridge? Will the air barrier breathe enough to mitigate moisture accumulation? Is that something you even want? 

We are looking at you, CMU. We are looking at you, impermeable air barrier. We are looking at you, vapor retarder.

This presentation will cover the performance of the various wall assembly materials, how they interact, and how they manage the changing dynamics within the wall assembly. WE ARE LOOKING AT YOU, HYGROTHERMAL DYNAMICS!

Correct wall assembly is essential for the safety of the occupants and users of buildings. Mitigating moisture accumulation is not only critical to the design of the building but also improves the health of building occupants and users by reducing risk of mold.

Series registration required before 4pm on November 13. Event registration required before 4pm on November 16.

Learning Objectives

  • Understand the sources of moisture within a wall assembly, and general magnitude of the offenders – bulk water vs. vapor vs. air – and how wall assembly moisture can impact occupant health.
  • Explore wall assembly strategies given various interior and exterior environments.
  • Identify the various strategies to mitigate unintended performance issues and ensure the construction is safe for building occupants and users.
  • Understand the ramifications of a failed barrier strategy and the impact on occupant health and safety.


Allison Brown, RRC, REWC

Allison is a senior-level building envelope specialist with a focus on construction defect and forensic investigations, building envelope design, and construction phase quality assurance.  

For nearly 15 years Allison has focused on litigation support and building envelope forensics. As an RRC (Registered Roof Consultant), REWC (Registered Exterior Wall Consultant) and Level II Thermographer with a background in litigation support and construction-phase services, she leads forensic investigations, origin & cause assessments relating to bulk water intrusion, condensation & thermal bridging, as well as premature cladding and fenestration system failure. 

Allison assists design professionals by providing drawing review services to help identify challenges and deficiencies in envelope design.  As a project moves into construction, she provides quality assurance inspections to verify that installation techniques are adhering to the architectural design and manufacturer’s recommendations.

Cincinnati, OH United States + Google Map