A public building is being renovated, and new doors are being installed. Which of the following is a requirement for the fire-resistance rating of the doors?
- AThe doors must have a fire-resistance rating of 20 minutes.
- BThe doors must have a fire-resistance rating of 30 minutes.
- The doors must have a fire-resistance rating of 1 hour.
- DThe doors must have a fire-resistance rating of 2 hours.
Exam tip
Fire-resistance ratings for doors are specific to the type of building and its use.
Why C is correct
According to Section 703.5 of the 2021 International Building Code, the doors must have a fire-resistance rating of 1 hour for a public building. Options A, B, and D are incorrect as they do not meet the specific requirement.