Chapter 08
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Transcript of Chapter 08
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Chapter Eight
Interior Finish Requirements
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Learning Objectives
• Describe– Building elements regulated for interior finish– Test method to classify interior finish elements
• Discuss need to regulate interior finish based on our national fire experience
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Fires with Interior Finish Role
Coconut Grove 1942 (492)
La Salle Hotel 1946 (61)
Our Lady of Angels 1958 (95)
Beverly Hills 1977 (164)
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Fires with Interior Finish Role
MGM Grand 1980 (85)
Las Vegas Hilton 1980 (8)
Station Nightclub2003 (100)
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Interior Finish
• Exposed interior surface of the building– Insulation, fire resistance, acoustical or
decorative purposes • Ceiling, walls, partitions, and columns• Floor finishes• Wainscoting• Paneling or any other finish applied structurally
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Interior Finish and Safety
1. Affects the rate at which flashover occurs
2. Contributes to fire extension
3. Intensifies fire by contributing fuel
4. Produces smoke and toxic gases
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Interior Finish
• Tested per ASTM E-84
• Steiner Tunnel Test
• A.J. Steiner, U.L. Engineer
• Class A or Class 1 --- 0-25
• Class B or Class 2 --- 26-75
• Class C or Class 3 --- 76-200
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Steiner Tunnel Test
• 25’ horizontal furnace
• Asbestos cement board = 0
• Red oak = 100
• Materials are tested
• Classed A, B, C or Class I, II, or III
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Steiner Tunnel Test
• Flame spread
• Smoke development (or density)
• Fuel contributed
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Carpet-Like Wall Coverings
• Class A or 1 in sprinklered buildings
• Tested in accordance with NFPA 265
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Summary• Interior finish, trim, and decorative
materials – Can increase fire spread and flashover
• Combined with means of egress deficiencies
– Occupants face an increased risk of death or injury