2025 NFPA 13R Standard for the Installation of Sprinkler Systems in Low-Rise Residential Occupancies

Here's the rewritten copy:

2025 Edition

NFPA 13R Standard for the Installation of Sprinkler Systems in Low-Rise Residential Occupancies 2025 — Softcover

NFPA 13R, Standard for the Installation of Sprinkler Systems in Low-Rise Residential Occupancies 2025 edition establishes mandatory requirements for the design, installation, and acceptance testing of sprinkler systems in low-rise residential occupancies up to and including four stories in height. Coverage addresses water supply requirements, system components, pipe sizing, sprinkler placement, freeze protection, obstruction criteria, and system acceptance testing — with provisions designed to support cost-effective sprinkler installation in apartments, condominiums, townhouses, lodging and rooming houses, and similar residential occupancy types.

Who Uses NFPA 13R

Required by fire protection engineers, residential sprinkler system installers and contractors, building inspectors, and AHJ officials responsible for the design, installation, and acceptance of sprinkler systems in low-rise residential occupancies. Always verify which edition is adopted in your jurisdiction before purchasing.

What's New in the 2025 Edition

The 2025 edition delivers targeted updates across system design, sprinkler placement, and occupancy classification, including:

• Revised conversion factors in Chapter 1.
• New definition for "ceiling pocket."
• Revised clarification that common spaces such as lounges, group cooking facilities, and group bathrooms are to be considered part of a dwelling unit.
• New differentiation between LED-style lights and other light types as heat sources for sprinkler placement purposes.
• New guidance on installing sidewall sprinklers beneath sloped ceilings.
• Clarification in Chapter 8 that an inside hose demand is not required for NFPA 13R systems.

Stay compliant with the low-rise residential sprinkler system installation requirements in effect for your jurisdiction.

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