NFPA 221-2021 PDF Download

NFPA 221-2021 standard provides comprehensive criteria for the design and construction of fire-rated walls. Its aim is to help protect lives and minimize damage by slowing down the spread of fire and reducing losses. The standard covers various aspects related to fire walls, such as fire resistance ratings, performance-based design, protection of openings and penetrations, and insulation applied to the exterior of vertical surfaces.

The 2021 edition of NFPA 221 includes significant updates to ensure the most relevant and complete provisions for fire wall assemblies. These changes incorporate new requirements for the performance-based design of walls using analytical methods to evaluate structural systems under uncontrolled fire exposure. The standard also offers expanded guidance on the application of insulation to the exterior of fire walls, as well as revised requirements for buildings in high-wind-prone regions, aligning with changes in the building code to mitigate small windborne debris damage.

By referencing NFPA 221 and following its guidelines, AHJs (Authorities Having Jurisdiction), architects, engineers, and construction professionals can make informed decisions to help safeguard people and property. Access to the current edition of NFPA 221 can be obtained by ordering a copy of the standard, which contains detailed information encompassing 36 pages.