Page 290 - ICC IEBC 2018

RESOURCE A

TABLE 3.3—continued
FLOOR/CEILING ASSEMBLIES—WOOD JOIST
PERFORMANCE REFERENCE NUMBER
ITEM MEMBRANE CONSTRUCTION DETAILS NOTES REC.
CODE THICKNESS LOAD TIME PRE-BMS-92 BMS-92 POST-BMS-92 HOURS
F/C-W-20 7 / ″ As per F/C-W-19, except deck is 1″ T&G 60 psf 43 min. 7 1, 2 2 /
8 boards. 3
12′ clear span - 2″ × 9″ wood joists; 16″
o.c.; 2″ × 1 / ″ bridging at center; Deck: 1″
1
F/C-W-21 1″ 2 70 psf 29 min. 7 1, 2 1 /
T&G; Membrane: / ″ gypsum base board; 3
3
8
5
/ ″ gypsum plaster.
8
12′ clear span - 2″ × 9″ wood joists; 16″
o.c.; 2″ × 2″ wood bridging at center;
1
F/C-W-22 1 / ″ Deck: 1″ T&G; Membrane: hangers, chan- 60 psf 1 hr. 7 1, 2, 3 1
8
3
nel with / ″ gypsum baseboard affixed
8
3
under / ″ gypsum plaster.
4
Deck: 1″ nominal lumber; Joists: 2″ × 7″;
3
1
F/C-W-23 3 / ″ 15″ o.c.; Membrane: / ″ plasterboard with 60 psf 11 / min. 12 2, 6 1 / 6
8
2
8
plaster skim coat.
Deck: 1″ T&G lumber; Joists: 2″ × 9″; 16″
F/C-W-24 1 / ″ 60 psf 18 min. 12 2, 7 1 /
1
2 o.c.; Membrane: / ″ plasterboard. 4
2
Deck: 1″ T&G lumber; Joists: 2″ × 7″; 16″
F/C-W-25 1 / ″ 30 psf 8 min. 12 2, 8 2 /
1
2 o.c.; Membrane: / ″ fiber insulation board. 15
2
Deck: 1″ nominal lumber; Joists: 2″ × 7″;
1
F/C-W-26 1 / ″ 15″ o.c.; Membrane: / ″ fiber insulation 60 psf 8 min. 12 2, 9 2 / 15
2
2
board.
Deck: 1″ nominal lumber; Joists: 2″ × 7″;
5
F/C-W-27 5 / ″ 15″ o.c.; Membrane: / ″ gypsum plaster on 60 psf 17 min. 12 2, 10 1 / 4
8
8
wood lath.
Deck: 1″ T&G lumber; Joists: 2″ × 9″; 16″
1
F/C-W-28 5 / ″ o.c.; Membrane: / ″ fiber insulation board; 60 psf 20 min. 12 2, 11 1 / 3
8
2
1
/ ″ plaster.
2
No See 1, 12,
F/C-W-29 Exposed wood joists. 15 min. 1 1 /
Membrane Note 13 13, 14 4
Gypsum wallboard: / ″ or / ″ with 1 / ″
1
1
3
2
8
2
3
No. 15 gage nails with / ″ heads spaced See 1, 12,
16
F/C-W-30 3 / ″ 6″ centers with asbestos paper applied with Note 13 25 min. 1 13, 14 1 / 2
8
paperhangers' paste and finished with
casein paint.
1
3
Gypsum wallboard: / ″ with 1 / ″ No. 12 See 1, 12,
2
4
1
F/C-W-31 1 / ″ gage nails with / ″ heads, 6″ o.c., and fin- Note 13 25 min. 1 13, 14 1 / 2
2
2
ished with casein paint.
1
1
Gypsum wallboard: / ″ with 1 / ″ No. 12
2
2
1
gage nails with / ″ heads, 18″ o.c., with
2
F/C-W-32 1 / ″ asbestos paper applied with paperhangers’ See 30 min. 1 1, 12, 1 /
1
2 paste and secured with 1 / ″ No. 15 gage Note 13 13, 14 2
2
3
nails with / ″ heads and finished with
16
casein paint; combined nail spacing 6″ o.c.
3
Gypsum wallboard: two layers / ″ secured See 1, 12,
8
1
3
F/C-W-33 3 / ″ with 1 / ″ No. 15 gage nails with / ″ heads, Note 13 30 min. 1 13, 14 1 / 2
2
8
8
6″ o.c.
3
Perforated gypsum lath: / ″, plastered with See 1, 12,
8
5
1
F/C-W-34 1 / ″ 1 / ″ No. 13 gage nails with / ″ heads, 4″ Note 13 30 min. 1 13, 14 1 / 2
2
16
8
1
o.c.; / ″ sanded gypsum plaster.
2
1
8
F/C-W-35 1 / ″ Same as F/C-W-34, except with 1 / ″ No. See 45 min. 1 1, 12, 3 /
2 13 gage nails with / ″ heads, 4″ o.c. Note 13 13, 14 4
3
8
(continued)
2018 INTERNATIONAL EXISTING BUILDING CODE ® 271
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