Chapter 8 Interior Finishes Flashcards
Interior walls and Ceiling finishes tested with
ASTM E84 or UL 723
Interior finish materials; Class A
Flame Spread index 0-25
Smoke-developed index 0-450
Interior finish materials; Class B
Flame Spread index 26-75
Smoke-developed index 0-450
Interior finish materials; Class C
Flame Spread index 76-200
Smoke-developed index 0-450
Materials having a thickness less than..
.036 inch can be applied directly to wall or ceiling without test
Foam plastics shall ..
not be used for interior finish
Textile wall coverings shall be tested by
1.NFPA 265
2. ASTM E84 or UL 723
Expanded Vinyl Ceiling Coverings test with
- NFPA 286
2.ASTM E84 or UL 723
(HDPE)
High Density Polyethylene
(PP)
Polypropylene
interior wall or ceiling finish material that is…
1/4 inch this shall be applied directly onto wall, ceiling, or structural element;
No furring strips needed
Shall not suspend away
interior floor finish tested with…
ASTEM E648 or NFPA 253
Minimum Critical Radiant Flux
No less than Class I in Groups I-2 & I-3 (no restraints R-2.1)
No less than Class II in Groups A,B,E,H,I-2.1, M, R-1,
R-2,R-2.2, and S
Combustible insulating boards no more than
1/2 inch thick for finish flooring
Combustible materials in Group A,B,E,I,M,&R1/2
shall not exceed 10% of wall or ceiling its attached too