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• IBC 717.1

  General

  • Covers duct penetrations and air transfer openings in protected assemblies and unrated floors.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.2

  Installation

  • Dampers installed per manufacturer, listing and 717.2.1 to 717.2.4.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.3

  Damper testing, ratings and actuation

  • Per 717.3.1 to 717.3.3.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.4

  Access and identification

  • Per 717.4.1 and 717.4.2.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.5

  Where required

  • Dampers go where 717.5.1 to 717.5.7 and 717.6 require; both fire and smoke means combination dampers.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.6

  Horizontal assemblies

  • Floor duct penetrations use shafts or 717.6.1 to 717.6.3.

  Works withIBC 713

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.7

  Flexible ducts and air connectors

  • Flex ducts don't pass through rated assemblies; flex connectors don't pass through any wall, floor or ceiling.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.1.1

  Ducts and air transfer openings

  • Ducts running horizontally between shafts need no shaft if dampered at each shaft.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.1.2

  Ducts that penetrate fire-resistance-rated assemblies without dampers

  • Undampered ducts follow 714.

  Works withIBC 714

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.2.1

  Smoke control system

  • Where a damper would interfere with smoke control, use approved alternatives.

  Works withIBC 909

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.2.2

  Hazardous exhaust ducts

  • Per the IMC.

  Works withIMC

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.2.3

  Static dampers

  • Static-rated dampers only in systems that shut down in fire.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.2.4

  Mechanical, electrical and plumbing controls

  • No MEP controls in ducts except wiring tied to the air system.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.3.1

  Damper testing

  • Fire dampers UL 555, smoke UL 555S, combination both, ceiling radiation UL 555C, corridor dampers both at 150 fpm.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.3.2

  Damper rating

  • Per 717.3.2.1 to 717.3.2.4.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.3.3

  Damper actuation

  • Per 717.3.3.1 to 717.3.3.5.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.4.1

  Access

  • Dampers have access for inspection; fusible-link dampers need 12-in doors or removable sections.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.4.2

  Identification

  • Access points labeled 'FIRE DAMPER', 'SMOKE DAMPER' or 'FIRE/SMOKE DAMPER' in ½-in letters.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.5.1

  Fire walls

  • Allowed fire wall ducts get fire dampers.

  Works withIBC 706.11

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.5.2

  Fire barriers

  • Fire barrier ducts get fire dampers, except tested penetrations, smoke control ducts, and fully ducted steel HVAC through 1-hour barriers in sprinklered non-H buildings.

  Works withIBC 1023.5IBC 1024.6

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.5.3

  Shaft enclosures

  • Shaft penetrations get fire and smoke dampers, except steel subducts 22 in up with continuous exhaust, garage shafts, smoke control and kitchen/dryer exhaust.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.5.4

  Fire partitions

  • Fire partition ducts get fire dampers, except sprinklered corridor walls, mall tenant walls, small steel ducts above ceilings, and ducted steel HVAC through 1-hour partitions in sprinklered buildings.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.5.5

  Smoke barriers

  • Smoke barrier ducts get smoke dampers, except steel ducts within one compartment and certain sprinklered I-2 Condition 2.

  Works withIBC 717.3.3.2

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.5.6

  Exterior walls

  • Rated exterior walls needing protected openings get fire dampers.

  Works withIBC 705.11

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.5.7

  Smoke partitions

  • Air transfer openings in smoke partitions get smoke dampers.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.6.1

  Through penetrations

  • Ducts through a rated floor connecting two stories need a floor-line fire damper or 714.5 protection; small steel exhaust ducts through up to three floors in walls are excepted.

  Works withIBC 714.5IBC 712.1.9

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.6.2

  Membrane penetrations

  • Ducts through rated ceilings use shafts or ceiling radiation dampers, unless the tested assembly shows they're not needed.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.6.3

  Nonfire-resistance-rated floor assemblies

  • Ducts through unrated floors use shafts, connect only two stories with sealed annulus, or three stories in noncombustible floors with dampers.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.1.2.1

  Ducts that penetrate nonfire-resistance-rated assemblies

  • Per 717.6.3.

  Works withIBC 717.6.3

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.2.4.1

  Controls not permitted to be installed through dampers

  • No controls through dampers unless listed.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.3.2.1

  Fire damper ratings

  • Fire dampers 1½-hour in assemblies under 3 hours, 3-hour in 3-hour or more.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.3.2.2

  Smoke damper ratings

  • Smoke dampers Class I or II leakage, at least 250°F.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.3.2.3

  Combination fire/smoke damper ratings

  • Meet both fire and smoke damper ratings.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.3.2.4

  Corridor damper ratings

  • 1-hour with Class I or II leakage.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.3.3.1

  Fire damper actuation

  • Heat devices about 50°F above duct temperature (160°F minimum), or up to 350°F in smoke control.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.3.3.2

  Smoke damper actuation

  • Smoke dampers close on detectors within 5 ft in the duct, at door openings, at transfer openings, or by area detection.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.3.3.3

  Combination fire/smoke damper actuation

  • Per both; shaft dampers in smoke control not tripped by local detection alone.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.3.3.4

  Ceiling radiation damper actuation

  • 50°F above duct temperature, 160°F minimum.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.3.3.5

  Corridor damper actuation

  • Per 717.3.3.1 and 717.3.3.2.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.4.1.1

  Access openings

  • Access doesn't reduce the assembly rating.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.4.1.2

  Restricted access

  • Hard-to-reach dampers use remote inspection per NFPA 80 or 105.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.5.1.1

  Horizontal exits

  • Also smoke dampers at horizontal exit fire walls.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.5.2.1

  Horizontal exits

  • Also smoke dampers at horizontal exit barriers.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.5.3.1

  Continuous upward airflow

  • No dampers where closure would stop required upward airflow.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.5.4.1

  Corridors

  • Corridor dampers at rated corridor ceilings, ceiling radiation dampers at rated floor ceilings, smoke dampers where smoke doors are required.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.6.2.1

  Ceiling radiation dampers testing and installation

  • Tested per 717.3.1 and installed per listing.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.6.2.1.1

  Dynamic systems

  • Fans-on systems use dynamic-rated ceiling radiation dampers.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 717.6.2.1.2

  Static systems

  • Static dampers only with shutdown systems, duct or area detection, or occupant sensors.

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 708.9

  Ducts and air transfer openings

  • Ducts follow 717.

  Works withIBC 717

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 709.8

  Ducts and air transfer openings

  • Ducts follow 717.

  Works withIBC 717

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 705.11

  Ducts and air transfer openings

  • Ducts in rated exterior walls needing protected openings follow 717; foundation vents allowed.

  Works withIBC 717

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 706.11

  Ducts and air transfer openings

  • Ducts may not pass through fire walls, except non-lot-line walls per 717 and 706.8.

  Works withIBC 717

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 707.10

  Ducts and air transfer openings

  • Duct penetrations follow 717.

  Works withIBC 717

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 713.10

  Duct and air transfer openings

  • Ducts per 717.

  Works withIBC 717

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 712.1.6

  Ducts and air transfer openings

  • Ducts per 717; grease ducts per the IMC.

  Works withIBC 717IMC

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead the full text (opens UpCodes in a new tab)

• IBC 714.1.1

  Ducts and air transfer openings

  • Undampered ducts follow 714; dampered ducts 717.

  Works withIBC 717

  International Building Code, 2024 · Chapter 7, Fire and Smoke Protection FeaturesRead 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.