Quantcast Interior Finishing Materials and Insulation

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VIII
SPECIFICATION
GUIDELINE DATA
INTERIOR FINISHING MATERIALS AND INSULATION
FOR
NEW CONSTRUCTION REHABILITATION
AND/OR ALTERATION OF-EXISTING FACILITIES
GENERAL INFORMATION:  Interior finish is defined as the material of
walls, ceilings, wainscotting and other interior surfaces of a building
and surfacing materials applied to the walls and ceilings.  (More
specifically defined as the non-structural components of
construction.) Exposed insulation and acoustical materials are
considered in the category of interior finish. Interior finish is
related to life safety la that the materials could be the source of
excessive generation of toxic gaseous products.  There are three major
aspects of the hazards of combustible interior finishes:  (1)
susceptibility to ignition; (2) spread of fire and smoke; (3)
vulnerability of combustible concealed spaces behind finish material.
REQUIREMENTS:
1.  INTERIOR FINISH:  Shall conform to requirements of NFPA Standard
No. 101 except as follows:
(a) Interior finish for "Exits" shall he Class A only.
(b) Interior finish materials for other than "Exits' shall be Class
A or Class B only, except that in hospitals, individual rooms with a
capacity for 5 or more persons shall have Class A only.
(c) "Smoke Developed" Classification by ASTM E-84 Test shall be:
(I) Not higher than 50 for Class A interior finish materials.
(2) Not higher than 100 for Class B interior finish materials.
(d) Cellular plastics shall not be used as interior finish
materials.
2.  INSULATION:  Thermal and acoustical insulation shall have flame
spread rating not higher than 75, and smoke developed rating not higher
than 150 by ASTM E-84 Test.  Cellular plastic insulation shall be
tested in the same densities and thicknesses as the material will be
used in actual construction applications.
(a) Compliance with the smoke developed limitation is not required
and a greater flame spread rating of 100 is permitted for
VIII-1





 


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