Maintaining continuity at roof-to-wall transitions is often one of the most difficult aspects of commercial air barrier design. Discover techniques, components, and key materials used in these areas.
Overview
Where vertical air barrier systems meet horizontal roof membranes, complex detailing is required to maintain air control. Mechanical curbs, parapets, and metal edges must be addressed. This article reviews the most effective strategies for bridging this gap using field-applied and prefabricated solutions.
🔍 Quick Picks
- Termination Bar for Membrane Securement: Carlisle Sure-Seal Termination Bar
- Universal Roof Sealant: NP1 Polyurethane Roof Joint Sealant
- Flashing Transition Tape: 3M All Weather Flashing Tape
Conclusion
Roof-to-wall intersections require special attention to sequencing and adhesion. Select termination and sealant products with long-term compatibility and install them to resist both movement and weathering.
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Flashing Integration Details
Air barrier continuity at roof intersections involves coordination between trades. For example, wall air barriers must be lapped beneath roof membranes or base flashings. Use primered tapes, transition boots, or EPDM skirts depending on the system. Coordinate with fire and thermal layers at parapets and wall returns.
