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<br />26
<br />
<br />refer
<br />31
<br />
<br />.e,
<br />
<br />'"
<br />
<br />.
<br />
<br />* Nonbearing.
<br />
<br />Letter superscripts
<br />
<br />in. hollow tile of medium burned clay, not less than
<br />60% solid, two cells in thickness; both sides plastered
<br />....:..1... cL:_ 1.'2 _.~,........ "...11 ......,11 ....1....+... (0 cn'
<br />"" ......... 70 "'.I. .a..v 6J pol""...... .............. "'......"" jI.....oI........ \.... aI... J .........__.
<br />
<br />to notes,
<br />
<br />page 47.
<br />
<br />2 h:-s.*
<br />
<br />Heavy
<br />Timber
<br />
<br />Letter superscripts refer
<br />
<br />in. laminated plank floor
<br />top, (31)
<br />
<br />to notes,
<br />
<br />page 47.
<br />
<br />hr.
<br />
<br />4
<br />
<br />4 in. facing tile cored not
<br />back side with ~ in.
<br />composed of 3~ cu. ft.
<br />sum. (16)
<br />
<br />to exceed 30%, plastered on
<br />gypsum-vermiculite plaster
<br />vermiculite to 100 Ibs. gyp-
<br />
<br />2 hrs. *
<br />
<br />2 in. (minimum thickness) concrete on top of U.L.
<br />listed ribbed steel floor units. Ceiling of 15/16 in.
<br />(measured from face of lath) U.L. listed cementitious
<br />mixture on metal lath suspended not less than 15~ in.
<br />from ribs of floor wlits, and spaced at least 3~ in.
<br />below steel beams. Lath attached to ~ in. furring
<br />channels supported by 1~ in. runner channels. Furring
<br />channels spaced not more than 13~ in. on centers.
<br />Duct opening in ceiling not larger than 113 sq. in. in
<br />each 100 sq. ft. ceiling area, protected by fire damper
<br />of No. 14 USS gauge steel. Other details as specified
<br />in U.L. Iistingc, under Floor or Roof, and Ceiling
<br />Constructions-Design No. 12-4 HR. ..........,...............
<br />
<br />6
<br />
<br />with
<br />
<br />1
<br />
<br />in. finish flooring on
<br />
<br />4 hrs.
<br />
<br />,
<br />J
<br />i
<br />
<br />4 in. facing tile cored not to exceed 25%, plastered on
<br />back side with ~ in. 1:3 gypsum and sand plaster.
<br />(14)
<br />
<br />6 in. partition consisting of 4 in. tile cored not to ex-
<br />ceed 41%, faced on fire exposed side with 1~ in. tile
<br />cored not to exceed 15% with ~ in. mortar filled
<br />~oint between, and plastered on opposite side with ~
<br />m. 1:3 gypsum and sand plaster. (12)
<br />
<br />2 hrs. *
<br />
<br />3 hrs.*
<br />
<br />Steel
<br />Unitsu,
<br />Ribbed
<br />
<br />6~ in. partition with two units in wall thickness, one
<br />unit 3~ in., other 1~ in. thick, with ~ in. joint be-
<br />tween filled with mortar. Position of units reversed
<br />on alternating courses. Tile cored not to exceed 25%
<br />in 4 in. unit, and not to exceed 15% in 1~ in. unit.
<br />(13)
<br />
<br />3 hrs.*
<br />
<br />Steel
<br />Unitsu,
<br />Corrugated
<br />
<br />4~ in. (measured from bottom of corrugations) ex-
<br />panded slag concrete on top of U.L. listed corrugated
<br />steel floor units. Ceiling of ~ in. gypsum-perlite
<br />plaster (measured from face of lath attached directly
<br />to steel floor units) on metal lath, and sufficient plaster
<br />pushed through the lath to fill the corrugations of the
<br />steel floor units; 1 in. plaster thickness to the face of
<br />the lath in an area 3 ft. square centered below electrical
<br />raceway junction box; not more than one junction box
<br />in each 90 sq. ft. floor area. Plaster mix: scratch and
<br />brown coat 2 cu. ft. U.L. listed perlite to 100 Ibs.
<br />gypsum. Other details as specified in U.L. Iistingc,
<br />under Floor or Roof, and Ceiling Constructions-
<br />Design No. 5-3 HR. ......,."...,.........."......................,.....,...
<br />
<br />4~ in. (measured from bottom of corrugations) rein-
<br />forced expanded shale concrete on top of U.L. listed
<br />corrugated steel floor units. Other details as specified
<br />in U.L. listingc, under Floor or Roof and Ceiling
<br />Constructions-Design No. 7-3 HR. "",......",..............,.
<br />
<br />5~ in. (measured from bottom of corrugations) rein-
<br />forced limestone concrete on top of U.L. listed cor-
<br />rugated steel floor units. Other details as specified
<br />in U.L. listingc, under Floor or Roof, and Ceiling
<br />Constructions-Design No. 3-2 HR. ................"......,.....
<br />
<br />4~ in. (measured from bottom of corrugations) crushed
<br />limestone concrete on top of U.L. listed corrugated
<br />steel floor units. Other details as specified in U.L.
<br />Iistingc, under Floor or Roof, and Ceiling Construc-
<br />tions-Design No. 3-1 HR, or No. 4-1 HR. ",...".,....
<br />
<br />hr.
<br />
<br />.
<br />
<br />.
<br />
<br />8-in. wall constructed of U.L. listed clay tile. Regular
<br />courses made with 3~ in. thick units; bonding course
<br />made with 1~ and 5~ in. thick units located every
<br />fourth course, with wide and narrow tile alternated on
<br />opposite faces. Other details as specified in U.L.
<br />listingc under Walls and Partitions-Design No.
<br />3-3 HR
<br />
<br />3 hrs.*
<br />
<br />2 hrs.
<br />
<br />3 hrs.
<br />
<br />Clay Tile
<br />
<br />in. units
<br />With noncombustible
<br />
<br />wall. ,........,...,................'"
<br />
<br />With combustible frameda
<br />bedded in mortar. "......,...........
<br />With unembedded combustible
<br />wall.
<br />
<br />members frameda into
<br />
<br />in
<br />
<br />members
<br />
<br />fully em-
<br />
<br />1~ hrs,
<br />
<br />2 hrs.
<br />
<br />3 hrs.
<br />
<br />or
<br />
<br />no
<br />
<br />(64)
<br />members framed into
<br />
<br />8
<br />
<br />42%
<br />
<br />solid,
<br />
<br />unplastered
<br />
<br />3 hrs.
<br />
<br />With unembedded combustible
<br />wall
<br />
<br />With combustible
<br />bedded in mortar
<br />
<br />members frameda into
<br />
<br />2 hrs.
<br />
<br />3 hrs.
<br />
<br />Brick
<br />(Hollow)
<br />
<br />frameda in
<br />
<br />8 in. units 42% solid, plaster on both sides
<br />1:3 gypsum and sand plaster: (64)
<br />
<br />With noncombustible or no members
<br />wall
<br />
<br />members
<br />
<br />framed
<br />
<br />fully
<br />
<br />em-
<br />
<br />into
<br />
<br />4 hrs.
<br />
<br />Brick
<br />(Cored)
<br />
<br />with %
<br />
<br />6 in. units 760/'0 solid, unplastered; with noncombustible
<br />or no members framed into the wall. (91)
<br />
<br />in.
<br />
<br />2~ hrs.
<br />
<br />\
<br />'...
<br />r.
<br />
<br />,.
<br />t
<br />
<br />,~
<br />
<br />T7Jle
<br />
<br />Details of
<br />
<br />FLOOR AND CEILING CONSTRUCTIONS-Continued
<br />Fire Resistance
<br />
<br />Construction
<br />
<br />Ratings Based on Standard Fire
<br />
<br />Tests
<br />
<br />Ratina
<br />
<br />.
<br />
<br />.
<br />
<br />Type
<br />
<br />Fire
<br />
<br />Details
<br />
<br />WALLS AND PARTITIONS-Continued
<br />Resistance Standard Fire
<br />
<br />Ratings
<br />
<br />of
<br />
<br />Based on
<br />
<br />Construction
<br />
<br />Tests
<br />
<br />Rating
<br />
<br />-
<br />FIRE RESISTANCE
<br />
<br />RATINGS
<br />
<br />e
<br />
<br />e
<br />
<br />FIRE RESISTANCE tTINGS
<br />
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