Thank you for signing up for alerts.
1.1* Scope. This standard provides criteria for defining and identifying fire retardant–treated wood and fire retardant– coated building materials. A.1.1 Fire resistance ratings measured on an hourly basis are not covered in this standard. To establish such ratings, tests should be made in accordance with NFPA 251.
This standard provides criteria for defining and identifying fire retardant–treated wood and fire retardant–coated building materials.
Requirements cover interior applications, exposure to weather or damp or wet locations, moisture content, labeling, tests, and maintenance of protection.
Find a code or standard
© National Fire Protection Association (NFPA) 2016