IBC 2021 · Model
Chapter 12: Interior Environment
27 sections in this chapter of the IBC 2021 model text — not Model's amended edition.
1201.1 Scope The provisions of this chapter shall govern ventilation, temperature control, lighting, yards and courts, sound transmission, room dimensions, surrounding materials and rodentproofing associated with the interior spaces of buildings.
- 1201.1Scope
- 1202.1General
- 1202.2Roof ventilation
- 1202.2.1Ventilated attics and rafter spaces
- 1202.2.2Openings into attic
- 1202.3Unvented attic and unvented enclosed rafter assemblies
- 1202.4Under-floor ventilation
- 1202.5Natural ventilation
- 1203.1Equipment and systems
- 1204.1General
- 1204.2Natural light
- 1204.3Artificial light
- 1204.4Stairway illumination
- 1204.5Emergency egress lighting
- 1205.1General
- 1205.2Yards
- 1205.3Courts
- 1206.1Scope
- 1206.2Airborne sound
- 1206.3Structure-borne sound
- 1207.1General
- 1207.2Where required
- 1208.1Minimum room widths
- 1208.2Minimum ceiling heights
- 1208.3Room area
- 1208.4Efficiency dwelling units
- 1210.1Required fixtures
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