2025 NFPA 13D Sprinkler Systems Standard

This standard provides current guidelines for the installation of sprinkler systems in single- and two-family homes. It's a must-have for installers and contractors to ensure they're up-to-date on the latest technology and construction types. With this standard, you can help reduce the risk of fire and associated hazards in residential occupancies. The standard is applicable to prefabricated homes and one- and two-family dwelling units, making it a valuable resource for those in the industry.

The 2025 edition features several significant updates including:

• Revised conversion factors in Chapter 1
• New definition for “ceiling pocket”
• Differentiation between LED-style lights and other lights as a heat source
• New guidance on installing sidewall sprinkler beneath a sloped ceiling
• Clarification on closets with no doors
• Location criteria on sprinkler installation above fuel-fire equipment
• Added pipe sizing calculation worksheet
• Updated Chapter 12 annex to identify additional tasks that should be performed during an inspection