Commercial Building Inspector B2Public Safety and Special ConstructionMedium
A tenant improvement project in an existing building involves converting a portion of a Group B office into a Group A-2 restaurant. The existing building was constructed under the 2006 IBC. When evaluating the existing means of egress for the new restaurant, which chapter of the 2021 IBC primarily governs the requirements for existing buildings?
- AChapter 1: Scope and Administration
- BChapter 5: General Building Heights and Areas
- CChapter 10: Means of Egress
- DChapter 34: Existing Buildings
Show answer & explanationAnswer & explanation
Correct answer: D. Chapter 34: Existing Buildings
Chapter 34 of the IBC (or the International Existing Building Code, IEBC, which is often adopted in lieu of or referenced by IBC Chapter 34) specifically addresses alterations, repairs, additions, and changes of occupancy in existing buildings, providing criteria for applying current code requirements.
Why the other options are wrong
- A. Chapter 1 covers administrative aspects but does not contain the technical provisions for existing building alterations.
- B. Chapter 5 deals with general building heights and areas for new construction, not the specific challenges of existing buildings.
- C. Chapter 10 outlines general means of egress requirements, but Chapter 34 (or IEBC) modifies how these apply to existing buildings.
Existing Building Code Application
IBC Chapter 34 (or the International Existing Building Code - IEBC) provides the framework for applying current code requirements to alterations, repairs, additions, and changes of occupancy in existing buildings, balancing safety with practical considerations.
- Governs modifications to buildings not originally built under the current code.
- Establishes thresholds for compliance with new code provisions.
- Aims to improve safety in existing structures without requiring full reconstruction.
Memory trick: Existing buildings, Chapter 34's wisdom, helps avoid a code collision.