Hot and cold water at every plumbing fixture

Description

All plumbing fixtures must have both hot and cold water supplies (toilets and outdoor hose bibs are exempt from the hot requirement).

Why this exists

Sanitation depends on hot water for handwashing, dishwashing, and bathing.

Categories

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

• Required dwelling-unit fixtures · IRC R306.1
• Shower compartment floor · IRC R307.2
• Stud notch ≤ 25% (bearing) / 40% (non-bearing); hole ≤ 40% (bearing, single) / 60% (double or non-bearing); ⅝ in min edge · 2025 RCNYS §R602.6 Drilling and notching of studs
• Dryer exhaust duct: max 35 ft straight (subtract 5 ft per 4-in 90° mitered elbow); 4-in metal smooth-wall duct · 2025 RCNYS §M1502.4.6 Dryer exhaust duct max length (35 ft)
• Dwelling fire sprinklers: designed and installed per NFPA 13D or P2904 (residential sprinklers, listed) · 2025 RCNYS §P2904 Dwelling unit automatic sprinkler systems (general)