Page 238 - ICC IEBC 2018

RESOURCE A

TABLE 1.3.2—continued
WOOD FRAME WALLS
4″ TO LESS THAN 6″ THICK
PERFORMANCE REFERENCE NUMBER REC.
ITEM CODE THICKNESS CONSTRUCTION DETAILS NOTES
LOAD TIME PRE-BMS-92 BMS-92 POST-BMS-92 HOURS
3
2″ × 4″ stud wall; / ″ thick 2:1:8; 2:1:12
4
See
W-5-W-57 5″ lime and Keene's cement plaster over Note 23 45 min. 1 17, 21, 1 / 2
23
metal lath on both sides of wall.
3
2″ × 4″ stud wall; / ″ thick 2:1:8; 2:1:10
4
See
W-5-W-58 5″ lime portland cement plaster over metal Note 23 30 min. 1 17, 21, 1 / 2
23
lath on both sides of wall.
3
4
W-5-W-59 5″ 2″ × 4″ stud wall; / ″ thick 1:5; 1:7.5 lime See 30 min. 1 17, 21, 1 /
plaster on metal lath on both sides of wall. Note 23 23 2
2″ × 4″ stud wall; / ″ thick 1: / :2; 1: / :
1
1
3
4
30
30
W-5-W-60 5″ 3 portland cement, asbestos fiber plaster See 45 min. 1 17, 21, 3 /
Note 23 23 4
on metal lath on both sides of wall.
2″ × 4″ stud wall; / ″ thick 1:2; 1:3
3
4
W-5-W-61 5″ portland cement plaster on metal lath on See 30 min. 1 17, 21, 1 /
Note 23 23 2
both sides of wall.
3
4
1
W-5-W-62 5″ 2″ × 4″ stud wall; / ″ thick neat gypsum N/A 1 hr. 1 17, 22, 1 /
plaster on metal lath on both sides of wall. 30 min. 24 2
3
4
1
W-5-W-63 5″ 2″ × 4″ stud wall; / ″ thick neat gypsum See 1 hr. 1 17, 21, 1 /
plaster on metal lath on both sides of wall. Note 23 30 min. 23 2
3
2″ × 4″ stud wall; / ″ thick 1:2; 1:2 gyp-
4
1 hr.
See
1
W-5-W-64 5″ sum plaster on metal lath on both sides of Note 23 30 min. 1 17, 18, 1 / 2
21, 23
wall; insulated cavities.
W-5-W-65 5″ 2″ × 4″ stud wall; same as W-5-W-64 but See 1 hr. 1 17, 21, 1
cavities not insulated. Note 23 23
2″ × 4″ stud wall; / ″ thick 1:2; 1:3
3
4
See
1 hr.
1
W-5-W-66 5″ gypsum plaster on metal lath on both sides Note 23 15 min. 1 17, 18, 1 / 4
21, 23
of wall; insulated cavities.
Same as W-5-W-49 except cavity insula-
tion of 1.75 lbs./ft. mineral wool bats; See 1 hr. 23, 26,
2
1
1
W-5-W-67 5 / ″ 1 1 /
rating applies when either wall side Note 23 15 min. 25
16 4
exposed to fire.
2″ × 4″ stud wall, / ″ thick 1:2; 1:3
7
8
1 hr.
See
1
1
W-5-W-68 5 / ″ gypsum plaster on metal lath on both sides Note 23 30 min. 1 17, 18, 1 / 2
4
21, 23
of wall; insulated cavities.
7
2″ × 4″ stud wall; / ″ thick neat gypsum
8
1 hr.
3
1
W-5-W-69 5 / ″ plaster applied on metal lath on both sides N/A 45 min. 1 17, 22, 1 / 4
4
24
of wall.
1
2″ × 4″ stud wall; / ″ thick neat gypsum
2
See
3
1
W-5-W-70 5 / ″ plaster on / ″ plain gypsum lath on both Note 23 1 hr. 1 17, 22, 1
4
8
23
sides of wall.
1
2″ × 4″ stud wall; / ″ thick of 1:2; 1:2
2
3
gypsum plaster on / ″ thick plain gypsum See 17, 21,
8
3
3
1
W-5-W-71 5 / ″ lath with 1 / ″ × 1 / ″ metal lath pads 1 hr. 1 1
4
4
4
nailed 8″ o.c. vertically and 16″ o.c. Note 23 23
horizontally on both sides of wall.
1
2″ × 4″ stud wall; / ″ thick of 1:2; 1:2
2
3
gypsum plaster on / ″ perforated gypsum
8
See
1
3
W-5-W-72 5 / ″ lath, one / ″ diameter hole or larger per Note 23 1 hr. 1 17, 21, 1
4
4
23
16″ square of lath surface, on both sides of
wall.
(continued)
2018 INTERNATIONAL EXISTING BUILDING CODE ® 219
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