Page 189 - ICC IEBC 2018

RESOURCE A

SECTION I - WALLS

FIGURE 1.1.1
MASONRY WALLS
0″ TO LESS THAN 4″ THICK
NUMBER OF The number in each box is
ASSEMBLIES
keyed to the last number in the
Item Code column in the Table.
For example:
10
W-3-M-20

20

19
5
18

14 17

13 5

12 15 4 8 22 6

11 10 9 16 3 7 1 21 2
0

0 1 2 3 4
FIRE RESISTANCE RATING (HOURS)

TABLE 1.1.1
MASONRY WALLS
0″ TO LESS THAN 4″ THICK
PERFORMANCE REFERENCE NUMBER
ITEM REC.
CODE THICKNESS CONSTRUCTION DETAILS LOAD TIME PRE- BMS-92 POST- NOTES HOURS
BMS-92 BMS-92
Solid partition; / ″ gypsum plank- 10′ ×1'6″ ; / ″ 1 hr.
3
3
1
1
W-2-M-1 2 / ″ 4 4 N/A 7 1 1 /
4 plus gypsum plaster each side. 22 min. 4
W-3-M-2 3″ Concrete block (18″ × 9″ × 3″) of fuel ash, port- N/A 2 hrs. 7 2, 3 2
land cement and plasticizer; cement/sand mortar.
W-2-M-3 2″ Solid gypsum block wall; No facings N/A 1 hr. 1 4 1
W-3-M-4 3″ Solid gypsum blocks, laid in 1:3 sanded gypsum N/A 1 hr. 1 4 1
mortar.
Magnesium oxysulfate wood fiber blocks;
W-3-M-5 3″ 2″ thick, laid in portland cement-lime mortar; N/A 1 hr. 1 4 1
1
Facings: / ″ of 1:3 sanded gypsum plaster on
2
both sides.
Magnesium oxysulfate bound wood fiber blocks;
W-3-M-6 3″ 3″ thick; laid in portland cement-lime mortar; N/A 2 hrs. 1 4 2
1
Facings: / ″ of 1:3 sanded gypsum plaster on
2
both sides.
(continued)

170 2018 INTERNATIONAL EXISTING BUILDING CODE ®
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