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Breaching the Air Barrier – Effective Solutions for Sealing Post Air Barrier Penetrations

Air Barriers are a critical element of the building envelop for maintaining a complete, integrated plane of water and air tightness. After completion of the air barrier, commercial projects are challenged by the attachment of a multitude of cladding materials and subframing members that now breach our beautiful plane of water/air tightness. This has been further complicated with the recent code improvements calling for continuous insulation on all light gauge metal framed buildings. The program will focus on the many options for masonry ties, rainscreen cladding subframing systems and insulation attachment methods and their impact on the air barrier performance.

Presented by: Marty Fischer - Principal, PPSI

Organized by: The Washington, DC Building Enclosure Council


After attending this course, participants will be able to:

  • Discuss the performance and impact of any post air barrier installation attachment systems and managing the risk by proper selection and detailing of the breach;

  • Describe the impact of continuous insulation and the attachment methods for various insulation technologies;

  • List the criteria for the selection of subframing systems for rainscreen cladding assemblies and the balance of properties achieved with various approaches; and

  • Integrate quality membranes, good transition strip detailing, effective seals at penetrations, and continuous insulation into high performance wall systems.