An interior room uses artificial lighting, including T8 luminaires. Under the general room-lighting requirement of 2021 IBC 1204.3, what average illumination must be provided over the room area at 30 inches above the floor?

ICC B2 exam practice question · Building Planning

An interior room uses artificial lighting, including T8 luminaires. Under the general room-lighting requirement of 2021 IBC 1204.3, what average illumination must be provided over the room area at 30 inches above the floor?

A1 footcandle
10 footcandles
C5 footcandles
D100 footcandles

Where to look it up

https://core-docs.s3.amazonaws.com/documents/asset/uploaded_file/3836/Lennox/3042180/2021_International_Building_Code.pdf

Why B is correct

The general artificial-light provision requires an average of 10 footcandles (107 lux) at the stated height. It specifies illumination performance rather than a universal five-foot center spacing for T8 lamps. Separate requirements may apply to special spaces and egress lighting. Source: 2021 IBC 1204.3; https://core-docs.s3.amazonaws.com/documents/asset/uploaded_file/3836/Lennox/3042180/2021_International_Building_Code.pdf

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An interior room uses artificial lighting, including T8 luminaires. Under the general room-lighting requirement of 2021 IBC 1204.3, what average illumination must be provided over the room area at 30 inches above the floor?

An interior room uses artificial lighting, including T8 luminaires. Under the general room-lighting requirement of 2021 IBC 1204.3, what average illumination must be provided over the room area at 30 inches above the floor?

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