Which NFPA standard would you consult to determine the fire performance rating of wood shingles?

• A. NFPA 101
• B. NFPA 70
• C. NFPA 256
• D. NFPA 13

Answer: (C)

Understanding how wood shingles behave in a fire relies on a formal material fire test. NFPA 256 provides the standard methods for fire testing of building construction and materials, including wood products. It specifies how to expose the material to a controlled radiant heat source and measure ignition, flame spread, heat release, and smoke development. The results from this test are used to assess the material’s fire performance and help determine its suitability under code requirements. The other standards listed don’t cover testing building materials for fire performance—NFPA 101 is a life-safety code, NFPA 70 deals with electrical systems, and NFPA 13 covers sprinkler installations.