Architectural · A-4YRBV

Elevator Pit Waterproofing at Base of Wall

Materials

Elements

Walls Stem Walls Waterproofing / Flashing Drainage Reinforcing

About this detail

A twelve-inch concrete wall connects to the pit slab with a typical waterstop embedded in the construction joint. The exterior face receives a self-adhered waterproofing membrane tied to the air and water barrier above, protected by drainage board layers. At the transition to the cavity wall, a metal flashing sits over solid grouted masonry with a mortar net, weep vent, felt spacer, backer rod, and sealant at the open head joint. An interior self-adhered membrane ties the air barrier and waterproofing at the stem wall.

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