Committee Reviews New Fire Separation Distance Code for Townhouse Units

The Building Code Council's recent SBCC IRC TAG meeting on July 29, 2025, spotlighted a critical update regarding fire separation distances in townhouse units. The discussion centered on the new language introduced in the 2024 code, which defines the "imaginary line" between townhouse units and its implications for fire safety.

Participants expressed concerns about the clarity of this definition, particularly in relation to Figure 2 of the significant changes report. One member pointed out that the new guidelines might contradict existing regulations, especially regarding the requirements for fire-rated walls between units. The conversation highlighted the need for a thorough understanding of how these changes affect property lines and the construction of adjoining structures.

A key point raised was the necessity of ensuring that townhouses built at right angles do not compromise safety by allowing garage doors to be positioned too closely without adequate fire protection. The council emphasized the importance of reviewing these regulations to prevent potential hazards in townhouse developments.

As the meeting concluded, members acknowledged the need for further examination of the fire separation distance guidelines to ensure they align with safety standards and do not create confusion in implementation. The council plans to revisit this topic in future discussions, aiming to clarify the regulations and enhance fire safety in residential construction.