International Residential Code 2024

International Residential Code 2024 (IRC) establishes the minimum regulations for the construction of one- and two-family dwellings and townhouses up to three stories in height. It covers all key aspects of residential building, including structural design, plumbing, mechanical systems, electrical installations, and fuel gas provisions. This edition introduces several important updates such as requirements for energy storage systems (ESS), EV-ready home infrastructure, and new standards for sleeping lofts and the use of A2L refrigerants. There are also updates to vapor barrier requirements and hazard mapping. A major improvement in the 2024 edition is its redesigned format, offering enhanced readability and usability. QR codes have been added to the margins throughout the code to help users easily track changes and access related resources using mobile devices. This modern, user-friendly format ensures that builders, inspectors, and design professionals can quickly reference the most current building standards and stay compliant with the latest safety and efficiency guidelines. International Residential Code 2024 continues to support safe, sustainable, and resilient residential construction through clear, enforceable, and up-to-date codes.