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).
11 sections matching “IBC 601” for San Antonio, TX, the 2024 IBC
IBC 601.1
Scope
This chapter classifies buildings by type of construction.
Primary frame IA 3, IB 2, IIA 1, IIB 0, IIIA 1, IIIB 0, IV-A 3, IV-B 2, IV-C 2, IV-HT heavy timber, VA 1, VB 0. Floors 2/2/1/0/1/0/2/2/2/HT/1/0; roofs 1½/1/1/0/1/0/1½/1/1/HT/1/0. Roof supports may drop 1 hour; roofs 20 ft or more above the floor need no protection except in F-1, H, M and S-1. Interior nonbearing walls are 0 unless other sections require.
Every building is Type I, II, III, IV or V; elements meet Table 601 ratings and exterior walls Table 705.5, per 703.2; opening protection only where other sections require.
Type IV uses mass timber or noncombustible elements meeting Table 601 via 703.2; IV-A, IV-B and IV-C need noncombustible protection per 703.6 and 722.7; CLT labeled to ANSI/APA PRG 320. Above 12 stories or 180 ft, exit and hoistway enclosures are noncombustible.
Exterior walls are rated per Table 601 and Table 705.5; walls with FSD over 10 ft are rated from inside only, 10 ft or less from both sides.
Groups A, B, E, F-2, I, R, S-2, U: under 5 ft 1 hour; 5–10 ft 1 hour; 10–30 ft 1 hour (0 for IIB and VB); 30 ft or more 0. F-1, M, S-1: 2 / 1–2 / 0–1 / 0. H: 3 / 2–3 / 1–2 / 0. R-3 of IIB/VB and private garages need no rating at FSD 5 ft or more.
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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