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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).

18 sections matching “IBC 504” for San Antonio, TX, the 2024 IRC

  • IBC 504.1

    General

    • Allowable height and stories depend on construction type, occupancy and sprinklers. One-story aircraft hangars and aircraft plants with suppression and surrounding yards of 1½ × height are unlimited.

    International Building Code, 2024 · Chapter 5, General Building Heights and AreasRead the full text (opens UpCodes in a new tab)

  • IBC 504.3

    Height in feet

    • Height above grade plane is limited by Table 504.3. Combustible rooftop towers and spires may rise up to 20 ft above the limit; noncombustible ones are unlimited.
    • Groups A, B, E, F, M, S, U and R: unsprinklered IA unlimited, IB 160, IIA 65, IIB 55, IIIA 65, IIIB 55, IV 65, VA 50, VB 40; fully sprinklered (13) IA unlimited, IB 180, IIA 85, IIB 75, IIIA 85, IIIB 75, IV-A 270, IV-B 180, IV-C 85, IV-HT 85, VA 70, VB 60. Group R with 13R is 60 ft in every type.

    Works withIBC Table 504.3IBC 1511.2.4

    International Building Code, 2024 · Chapter 5, General Building Heights and AreasRead the full text (opens UpCodes in a new tab)

  • IBC 504.4

    Number of stories

    • Stories above grade plane are limited by Table 504.4.
    • Examples, sprinklered (13): B IA unlimited, IB 12, IIA 6, IIB 4, IIIA 6, IIIB 4, VA 4, VB 3; R-2 IIA 5, IIB 5, IIIA 5, VA 4, VB 3 (13R: 4, VB 3); R-3 VA 4, VB 4; M VB 2; A-2/A-3 VB 2; E VB 2.

    Works withIBC Table 504.4

    International Building Code, 2024 · Chapter 5, General Building Heights and AreasRead the full text (opens UpCodes in a new tab)

  • IBC 1504.2

    Wind resistance of asphalt shingles

    • Asphalt shingles are tested to ASTM D7158 (or D3161) and classed per Table 1504.2: up to 116 mph D, G or H; 129–155 mph G or H; 168 mph and up H (D3161: A, D or F to 129 mph, F above).

    Works withIBC Table 1504.2IBC Table 1609.3.1

    International Building Code, 2024 · Chapter 15, Roof Assemblies and Rooftop StructuresRead the full text (opens UpCodes in a new tab)

  • IBC 1504.8

    Wind resistance of aggregate-surfaced roofs

    • Aggregate-surfaced roofs need perimeter parapets per Table 1504.8 by gravel size, roof height, exposure and wind speed (e.g. No. 7 gravel, 30 ft roof, Exposure C, 115 mph: 24 in). Exposure D adds 8 in.

    Works withIBC 1504.5IBC 1609IBC 1505IBC Table 1504.8IBC Chapter 26

    International Building Code, 2024 · Chapter 15, Roof Assemblies and Rooftop StructuresRead the full text (opens UpCodes in a new tab)

  • IBC 503.1.2

    Buildings on same lot

    • Several buildings on one lot are treated separately, or as one building if their combined area and each one's height fit Sections 504 and 506.

    Works withIBC 504IBC 506

    International Building Code, 2024 · Chapter 5, General Building Heights and AreasRead the full text (opens UpCodes in a new tab)

  • IBC 507.8.4

    Height limitations

    • In two-story unlimited buildings, Group H stays on the first story unless Section 504 allows higher.

    Works withIBC 504

    International Building Code, 2024 · Chapter 5, General Building Heights and AreasRead the full text (opens UpCodes in a new tab)

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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