Single-family + two-family sprinkler requirement is determined locality-by-locality

Description

Notwithstanding the IRC's blanket sprinkler requirement, Virginia's amendment defers the sprinkler requirement for one- and two-family dwellings to a Section 103.3 locality determination. Where required, the system shall be designed per Section P2904, NFPA 13, NFPA 13R, or NFPA 13D.

Why this exists

Major Virginia deviation from the base IRC, which requires sprinklers for all new one- and two-family dwellings. Cost-impact deferred to local jurisdiction.

Categories

Applies to

• Jurisdiction: Virginia

Source

Solver enforcement

Browsable only — the solver does not currently enforce this directive (no spec-level data to check against). This entry exists so the architect personas can cite it in conversation and the user can read what the rule says.

Related directives

• Garage / dwelling fire separation · IRC R302.6
• Habitable space minimum ceiling height · IRC R305.1
• Egress window net opening dimensions · IRC R310.2
• Stair riser, tread, and headroom · IRC R311.7
• Smoke alarms required throughout dwelling · IRC R314