IBC Design 721.1(2) 3-1.1

4-Hour Fire Rated Concrete masonry units — Expanded slag or pumice.

IBC Table 721.1(2), Item 3-1.1 (f, g) (Concrete masonry units): Expanded slag or pumice. Minimum finished thickness (face-to-face) — 4-hr: 4.7" · 3-hr: 4.0" · 2-hr: 3.2" · 1-hr: 2.1". Prescriptive assembly from the adopted building code — thicknesses are code minimums, see table footnotes for conditions.

Expanded slag or pumice.

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  • Layer-by-layer components with thicknesses
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  • Applicable code sections and test standard
  • 6 related assemblies
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