2. Finish & Furniture Selection ID 234 Chapter 9

3. What is Regulated by Codes: Walls & Ceilings – Class A, B, C (flame spread/smoke) Floors – Class I & II Furnishings finishes – Check test used, but generally follow either floor or wall ratings for that space

4. How to Select Materials Floor & Ceiling Class A: Flame spread 0-25, Smoke development 0-450 Class B: Flame spread 26-75, Smoke development 0-450 Class C: Flame spread 76-200, Smoke development 0-450 Achieved using the Steiner Tunnel Tests Note: Flame spread index (FSI) indicates speed at which a fire may spread across the surface of a material. The lower the number, the slower the fire will spread. FSI is determined test results.

5. Remember: Class A,B,C refer to wall & ceiling treatments

6. How to Select Materials Walls Class I: CRF: minimum of 0.45 watts per square centimeter Class I: CRF: minimum of 0.22 watts per square centimeter Achieved using the Radiant Panel Tests CRF: critical radiant flux – Measured in watts per square centimeter – Higher value = more heat energy it takes to ignite the finish (more resistant to flame spread)

7. How to Select Materials Furniture & Finishes Types of tests:

8. How to Select Materials Furniture & Finishes What the tests mean: Finishes can receive either a pass/fail or class rating, depending on the test

10. Project – Specific Concerns

11. Example: Restaurant waiting area upholstery

12. Testing: Wyzenbeek Published : 95,000+ Tensile Strength Weft : 351 Tensile Strength Warp : 330 Seam Slippage Weft : 94.8 Seam Slippage Warp : 84.8 NFPA 260 (UFAC) : Class I Mace Snag : L-4.5 W-3.5 Lightfastness 40 hrs : 5 CAL 117 : Pass Colorfastness Wet : 4 Colorfastness Dry : 4.5 Brush Pill : 3

13. Other Restrictions: 10% Rule: decorative material & trim kept to a maximum of 10% of wall & ceiling area can have a lower rating Thickness Rule: wallcovering more than.036” thick is to be treated as interior finish Furring Strips: cannot exceed a thickness of 1.75” when finishes are applied directly to them, and space in between must be filled with fire-rated material Sprinkler Rule: automatic sprinkler system = lower finish class ratings are sometimes allowed, or finishes with not rating at all Means of Egress: all exits & path of travel to and from exits must be clear of furnishings, decorations, or other objects Structural Building Elements: certain exposed building structural members are required to be enclosed, depending on their material and spacing (refer to ‘structural’ section of the codes) Foam Plastics: if used as wall or ceiling finishes, they must: follow 10% rule, pass multiple tests (Steiner Tunnel Test & Room Corner Test), and be of a certain thickness & density Light-Transmitting Plastics: must comply with a separate ‘plastics’ section of the codes Insulation: when used within a rated assembly, must also be rated – when used on a surface (acoustical) must meet minimum flame spread & smoke density ratings Safety Glass: refer to ‘glass and glazing’ section of the codes

14. Accessibility of Materials

15. Exercise 6 Identify the following: (see handout) Occupancy Classification for the building Exit: Material Classification Example Floor Covering that meets testing requirements Exit Access Material Classification Example Upholstery that meets testing requirements Other Area (Bathroom): Material Classification Example Wall Covering that meets testing requirements

16. ClassificationMaterial to Specify Required TestsExample Material Specs (attach images on a separate sheet) Tests PerformedResults ExitFloor Covering Exit Access Upholstery Other Area Wall Covering Occupancy Classification Exit * Exit Access * Other Area * Exercise 6 ID 234 Name: * Identify with color or another key the location of this area on the floor plan