Sprinkler Pipe Installation for APA Performance Rated I-Joists

Installing sprinkler systems in buildings with engineered wood I-joists requires careful attention to proper attachment methods, load calculations, and compliance with NFPA standards. This technical note addresses the critical intersection of fire protection systems and modern engineered wood construction, providing detailed specifications to ensure both structural integrity and fire safety requirements are met.

This publication is designed for: engineers, architects, builders, designers

This document provides design guidance including load assumptions based on NFPA 13 standards, fastener capacity tables, minimum edge distance requirements, and detailed installation drawings. It covers both steel Schedule 40 and CPVC Schedule 80 piping systems, with specific attention to hanger spacing, weight calculations, and seismic bracing requirements for various pipe diameters.

Key sections include:

• Permitted fasteners and NFPA code requirements

• Design load assumptions and capacity calculations

• Hanger configurations with detailed illustrations

• Seismic sway brace blocking details

• Fastener capacity tables for various materials

• Edge distance and penetration requirements

Published by APA — The Engineered Wood Association.