IBC Design 721.1(3) 17-1.1
3-Hour Fire Rated Perlite concrete slab proportioned 1:6 (Portland… — Perlite gypsum plaster on metal lath wire…
IBC Table 721.1(3), Item 17-1.1: Perlite concrete slab proportioned 1:6 (Portland cement to perlite aggregate) on a 9/16"-deep steel deck supported by steel joists 4' on center. Class A or B roof covering on top.. Ceiling: Perlite gypsum plaster on metal lath wire tied to 3/4" furring channels attached with 0.065" (No. 16 B.W. gage) wire ties to lower chord of joists. Minimum slab thickness — 3-hr: 2" · 2-hr: 2". Minimum ceiling thickness — 3-hr: 7/8" · 2-hr: 3/4". Prescriptive assembly from the adopted building code — see table footnotes for conditions.
Perlite concrete slab proportioned 1:6 (Portland cement to perlite aggregate) on a 9/16"-deep steel deck supported by steel joists 4' on center. Class A or B roof covering on top.. Ceiling: Perlite gypsum plaster on metal lath wire tied to 3/4" furring channels attached with 0.065" (No. 16 B.W.…
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