Page 229 - ICC IEBC 2018

RESOURCE A

FIGURE 1.2.2
METAL FRAME WALLS
4″ TO LESS THAN 6″ THICK

NUMBER OF
ASSEMBLIES

10

The number in each box is
keyed to the last number in the
Item Code column in the Table.
For example:
5
W-5-Me-11

8

7 9 10 11
5 1 4 6 3 2
0
0 1 2 3 4

FIRE RESISTANCE RATING (HOURS)

TABLE 1.2.2
METAL FRAME WALLS
4″ TO LESS THAN 6″ THICK
PERFORMANC REFERENCE NUMBER
ITEM CODE THICKNESS CONSTRUCTION DETAILS E NOTES REC.
HOURS
LOAD TIME PRE-BMS-92 BMS-92 POST-BMS-92
1
3″ cavity with 16 ga. channel studs (3 / ″ o.c.)
2
1
1
of / ″ × / ″ channel and 3″ spacer; Metal lath
2
2
3
1 hr.
1
4
W-5-Me-1 5 / ″ on ribs with plaster (three coats) / ″ over face N/A 11 min. 7 1 1
2
of lath; Plaster (each side): scratch coat,
cement/lime/sand with hair; float coat, cement/
lime/sand; finish coat, neat gypsum.
1
W-4-Me-2 4″ Core: steel studs; see Note 2; Facings: both N/A 2 hrs. 1 2 /
sides 1″ thickness of neat gypsum plaster. 30 min. 2
W-4-Me-3 4″ Core: steel studs; see Note 2; Facings: both N/A 2 hrs. 1 2
1
1
sides 1″ thickness of 1: / ; 1: / gypsum plaster.
2 2
Core: steel; see Note 2; Facings: both sides 1″ 1 hr.
1
W-4-Me-4 4″ N/A 1 1 /
thickness of 1:2; 1:3 gypsum plaster. 15 min. 4
Core: lightweight steel studs 3″ in depth; Fac- See
3
4
1
W-4-Me-5 4 / ″ ings: both sides / ″ thick sanded gypsum plas- Note 45 min. 1 5 3 /
2 ter, 1:2 scratch coat, 1:3 brown coat applied on 4
4
metal lath.
(continued)
210 2018 INTERNATIONAL EXISTING BUILDING CODE ®
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