Every 2024 IRC section and the IBC as it loads, by number or topic, plus the local rules for your city. Free to search.
Detached houses, duplexes and townhouses up to 3 stories with their own exits use the IRC; every other building uses the IBC (IBC 101.2).
22 sections matching “IBC 603” for San Antonio, TX, the 2024 IRC and IBC
IBC 603.1
Allowable materials
Combustibles allowed in Type I/II include FRT wood in nonbearing partitions (2 hours or less), nonrated exterior walls, roof framing and decks/balconies on buildings up to 3 stories, insulation with flame spread 25 or less, foam plastics per Chapter 26, Class A–C roofing, finishes, trim, millwork, blocking, and small tenant partitions.
Combustible materials in concealed spaces in Type I or II construction
No combustibles in Type I/II concealed spaces except per 603, plenum-rated materials, Class A finishes, code-compliant piping and rated pipe insulation.
Construction documents show member sizes and locations and the design loads in 1603.1.1–1603.1.9; conventional light-frame (2308) lists loads, snow, wind, seismic, flood, soil and rain data.
Searches all 4,276 IRC 2024 sections, 5,532 IBC 2024 sections and defined terms (Chapters 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33 so far) and each city's local rules as they are added. Section numbers and titles from the International Residential Code and International Building Code, 2024 editions, copyrighted by the International Code Council; the IRC's electrical chapters (34 to 43) follow NFPA 70, the National Electrical Code. Requirements are summarized in our words (IRC Chapters 3 to 43, IBC Chapters 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33); read the full text at the link on each result. Local values come from each city's published documents.
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