Architectural · A-R6KYV

Step-Down Foundation and Wall Transition at Waste Room

Materials

Concrete Timber / Wood Metal (misc.)Gypsum / Drywall

Elements

Beams Walls Stairs Ceilings Floors / Slabs Decks Foundations / Footings Waterproofing / Flashing Insulation

Connections

Shear Stud / Composite

About this detail

A step-down concrete foundation wall pairs with heavy-duty bentonite composite sheet waterproofing membrane, a drainage mat, and a sub-grade vapor retarder per geotechnical recommendations. The assembly transitions to a concrete slab and a structural steel beam supporting rated floor assemblies, utilizing mineral wool cut to the fluted floor deck and UL-listed fire stop sealant at the deflection track. A one-hour rated stair wall frames against the structure with metal stud joists, acoustic insulation, and five-eighths inch gypsum wall board fastened with four number ten sheet metal screws. System number HW-D-0652 applies at the rated horizontal assembly per the referenced sheet.

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