We are in the 2024–2026 ICC code development cycle, which is producing the 2027 editions of the International Codes. The 2024 IBC is the current published edition (released in 2023/early 2024). Chapter 15 (Roof Assemblies and Rooftop Structures) in the 2024 edition includes updates on topics like roof drainage, underlayment, wind resistance, occupiable rooftops, and aggregate-surfaced roofs.
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From our archive. Once Group B is released in late 2022 the 2023/2024 Group A revision will begin.
