UFC 3-600-01
17 April 2003
with change 16 January 2004
accordance with ASTM E119, Standard Test Methods for Fire Tests of Building
Construction and Materials.
2-7.2.2
No Flame Spread or Smoke Limitation. Compliance with FS and
SD limitations are not required for the following applications:
Insulation installed above poured concrete or poured gypsum roof
decks, nominal 50.8 mm (2-inch) thick tongue-and-groove wood
plank roof decks, or precast roof deck panels or planks that are
approved by a NRTL, as noncombustible roof deck construction.
Insulation installed above roof decks where the entire roof
construction assembly, including the insulation, is UL listed as Fire
Classified, or FM approved for Class I roof deck construction or
equal listing or classification by a NRTL.
Insulation contained entirely within panels where the entire panel
assembly used in the construction application meets the cited FS
and SD limitations.
Insulation isolated from the interior of the building by masonry
walls, masonry cavity walls, insulation encased in masonry cores,
or concrete floors.
Insulation installed over concrete floor slabs and completely
covered by wood tongue-and-groove flooring without creating air
spaces within the flooring system.
Insulation completely enclosed in hollow metal doors.
Insulation installed between new exterior siding materials and
existing exterior siding or wood board, plywood, fiberboard, or
gypsum exterior wall sheathing.
Note: The exception to SD limitations described in this paragraph is
not applicable to hospitals and correctional facilities.
2-8
ROOF COVERINGS AND ROOF DECK ASSEMBLIES.
2-8.1
Roof Coverings. Use roof coverings approved and listed by a
NRTL. The UL Roofing Materials and Systems Directory lists three Classes (A,
B, and C) of acceptable roof coverings based on compliance with UL 790, Safety
of Roof Coverings. Restrict Class C roof coverings to housing and buildings
under 744 m2 (8,000 ft2) and that are not mission essential.
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