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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 237 sections for San Antonio, TX, the 2024 IRC and IBC

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  • N1106.7.2.1

    Proposed Compliance Report for Permit Application

    • The ERI permit report gives the address, ERI on the plans, analyst, software, inputs and a certificate showing the score meets the table.

    International Residential Code, 2024 · Chapter 11, Energy EfficiencyRead the full text (opens UpCodes in a new tab)

  • N1107.2

    Tropical Climate Region

    • Tropical homes cool no more than half the space, have no heating, get 80 percent of water heating from renewables, and meet glazing, roof, ventilation and ceiling fan rules.

    International Residential Code, 2024 · Chapter 11, Energy EfficiencyRead the full text (opens UpCodes in a new tab)

  • N1108.2.8

    Demand Response

    • Demand response credit: the main thermostat can join utility programs and shift setpoints by 1 to 4 F on a signal.

    International Residential Code, 2024 · Chapter 11, Energy EfficiencyRead the full text (opens UpCodes in a new tab)

  • N1108.2

    Additional Energy Efficiency Credit Requirements

    • Prescriptive homes earn at least 10 credits from at least two measures in Table N1108.2, plus 5 more over 5,000 sq ft above grade; no interpolating between measures.

    Local review: Cities often amend the additional-credit requirement; confirm whether San Antonio's adopted energy code includes it and how many credits it requires.

    International Residential Code, 2024 · Chapter 11, Energy EfficiencyRead 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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