UL Design Number. However, the UL Design number is
for a specific product; therefore, is indirectly
being proprietary and would require justification
for sole source.
The floor decks and roof deck designs should utilize
systems that do not require the underside of the
decking to receive spray-applied fireproofing. This
may require specifying a thicker deck or a different
system. Due to flexing of the deck, spray-applied
fireproofing will eventually become loose and be of
no value.
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Fire resistance ratings shall be in accordance with the fire rated
assemblies listed in UL Fire Resist Dir. Proposed materials not listed in
UL Fire Resist Dir shall have fire resistance ratings at least equal to the
UL Fire Resist Dir ratings as determined by an approved independent testing
laboratory, based on tests specified in UL 263 or ASTM E 119. Fireproofing
shall be applied to structural steel members, with the following hourly
fire resitance rating and in accordance with the following UL design or
approved equivalent. Use unrestrained fire resistance ratings, unless the
architect/engineer has specified that the degree of thermal restraint of
the construction meets or exceeds the degree of thermal restraint of the
tested assembly. Performance tests shall be in accordance with ASTM E 119.
Fire Rating Schedule
Hourly
UL Design
Element
Rating
Reference
Columns supporting
one floor
[_____]
[_____]
Columns supporting
more than one floor
[_____]
[_____]
Columns supporting
roof
[_____]
[_____]
Floor decks
[_____]
[_____]
Floor supports
[_____]
[_____]
Roof decks
[_____]
[_____]
Roof supports
[_____]
[_____]
1.8
EXTENT OF FIREPROOFING
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NOTE: Specify, or indicate on the drawings, each
structural member, and floor and deck underside to
be fireproofed. Indicate structural members that do
not require fireproofing, such as exterior
structural peripheral members.
The following information will be shown on the
project drawings or detailed in this section:
1.
The extent and location of sprayed fire
SECTION 07810
Page 8
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