§ 503.7.6 — § 503.7.6

This section outlines the installation requirements for single-wall metal pipes, prohibiting their origin in unoccupied attics or concealed spaces and their passage through attics, inside walls, concealed spaces, or floors. Compliance with Section 503.7.7 is required for installations through exterior combustible walls. Applies to building owners involved in plumbing and heating installations.