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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 1,598 sections for San Antonio, TX, the 2024 IRC

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  • R602.3.5

    Braced Wall Panel Uplift Load Path

    • Exterior braced panels under the roof only need schedule nailing when wind is 115 mph or less in Exposure B on 5:12 or steeper roofs spanning 32 ft or less, or net uplift is 100 plf or less; otherwise add uplift connectors.

    International Residential Code, 2024 · Chapter 6, Wall ConstructionRead the full text (opens UpCodes in a new tab)

  • R704.3

    Exterior Soffit Installation Where the Design Wind Pressure Exceeds 30 psf

    • Over 30 psf, soffits are rated for the wind; vinyl needs intermediate support over 12 in, and plywood soffit can follow the prescriptive nailing table up to 90 psf.

    International Residential Code, 2024 · Chapter 7, Wall CoveringRead the full text (opens UpCodes in a new tab)

  • R507.9.1.8

    Exterior Wall Coverings

    • Siding stops above the deck surface per its maker; siding may stay behind a ledger only if it resists the clamping force.

    International Residential Code, 2024 · Chapter 5, FloorsRead the full text (opens UpCodes in a new tab)

  • R702.3.2

    Wood Framing

    • Wood behind drywall is at least 2 in nominal, or 1x2 furring over solid backing or framing at 24 in or less; steel framing is at least 1-1/4 in wide.

    International Residential Code, 2024 · Chapter 7, Wall CoveringRead 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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