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Search the building code.

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).

A random sample from 1,054 sections for San Antonio, TX, the 2024 IRC and IBC

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  • M1411.9.1

    Auxiliary and Secondary Drain Systems

    • Where overflow would cause damage, add a secondary drain: an auxiliary pan with its own drain to a visible spot, an overflow line from the unit pan, a pan with a UL 508 float shutoff, or a float switch on the primary.

    International Residential Code, 2024 · Chapter 14, Heating and Cooling Equipment and AppliancesRead the full text (opens UpCodes in a new tab)

  • M1411.9

    Condensate Disposal

    • Condensate runs from the pan to an approved disposal point at 1/8 in per ft or more, never onto a street, alley or anywhere it's a nuisance.

    Local review: Attic air handlers are common in San Antonio; check the city's mechanical amendments for where condensate may discharge (yard, plumbing drain or receptor).

    International Residential Code, 2024 · Chapter 14, Heating and Cooling Equipment and AppliancesRead the full text (opens UpCodes in a new tab)

  • M2105.11.2

    Electrofusion Joints

    • Electrofusion joints are clean, dry and scoured to virgin resin, heated for the maker's time, left to cool, with ASTM F1055 fittings.

    International Residential Code, 2024 · Chapter 21, Hydronic PipingRead the full text (opens UpCodes in a new tab)

  • G2417.4.1

    Test Pressure

    • Test at 1.5 times working pressure, at least 3 psig; above 125 psig, hoop stress stays under half of yield.

    International Residential Code, 2024 · Chapter 24, Fuel GasRead 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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