Hitting a Wall: Avoiding Chaos with Building Enclosure Details

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Webinar On-Demand
Sponsored by GAF | Siplast
Presented by Benjamin Meyer, AIA, LEED AP, and Andrea Wagner Watts

Learning Objectives:

  1. Discuss the requirements to manage moisture, air, vapor and thermal continuity.
  2. Recognize the changing building and energy codes and how interface details impact meeting the requirements.
  3. Explain how to design interface details to ensure they will meet air, water and thermal control requirements on both current and future project designs.
  4. Determine design and specification requirements to set performance requirements for wall systems.


As an IACET Accredited Provider, BNP Media offers IACET CEUs for its learning events that comply with the ANSI/IACET Continuing Education and Training Standard.

This presentation reviews a variety of building types to discuss the continuity of detailing required to manage moisture, air, vapor, and thermal performance, as well as wind resistance requirements at the critical wall-to-roof interface. To begin, this presentation will review the building science fundamentals of moisture management and energy efficiency. Then, we will discuss the impact of these critical details to whole building performance and provide guidelines to follow when designing and specifying to ensure both design and code requirements are met. Project and assembly specific details will be used to highlight the importance for construction trade sequencing. Quality control and operational maintenance will be covered as ways to ensure long-term performance of the building enclosure.


Photo courtesy of GAF and flaticon.com


Benjamin Meyer, AIA, LEED AP, is the Building Enclosure Business Director with Siplast. His previous experience includes enclosure consultant principal, technical management for enclosure products, commercial design, real estate development and construction management on a range of projects that included residential, educational, offices, and DuPont industrial projects. Benjamin’s industry positions include Voting Member of the ASHRAE 90.1 Envelope and Project Committees, Board of Directors of the Air Barrier Association of America (ABAA), LEED Technical Committee member, and past Technical Advisor of the LEED Materials (MR) TAG.


Andrea Wagner Watts, is the Building Science Education Manager with GAF, engaging with industry professionals to provide guidance, technical support and education for roof and wall assemblies. Andrea has more than 15 years of experience in the construction industry, successfully developing multiple sealants and air/water barrier system solutions and doing building science research. She is always working to improve the overall performance of the building enclosures through application innovation, research and industry knowledge sharing. Andrea has published on building science, assembly interfaces, durability and resilience and is the holder of multiple patents. She serves as an executive board member of ABAA, is the co-chair of their Technical Committee and chairs the ASTM E06 Task Group on air barriers.


PMElogo The Building and Roofing Science team offers regional expert building enclosure collaboration through design, specification, and educational support for customers of GAF and Siplast, both Standard Industries companies. GAF is North America’s largest roofing manufacturer with more homes and businesses in the U.S. protected by a GAF roof than any other product. Siplast, a leader in building enclosure systems, offers a portfolio of advanced, high-performance SBS-modified bitumen, PMMA liquid-applied, PVC KEE, lightweight insulating concrete, wall air & water barrier systems, and amenity/vegetated systems.
Originally published in March 2023