Architectural · A-4FQY6

Typ - Garage Exp Joint At L1

Materials

Concrete Membrane / Roofing Stainless Steel Timber / Wood

Elements

Drainage Expansion / Control Joints Floors / Slabs Insulation Reinforcing Site / Paving Walls Waterproofing / Flashing

Connections

Expansion / Slip Connection

About this detail

A two-inch expansion joint separates the existing building slab from the new building slab, incorporating a two-inch minimum expanded polystyrene foam filler. The vertical joint interface features a blind-side applied CCW Miraply-V waterproofing membrane with a three-inch wood blocking abandoned in place and terminated using a stainless steel termination bar and sealant. The horizontal assembly receives a hot-applied rubberized asphalt membrane over a one-quarter-inch asphaltic protection board and a drainage mat, which ties into the existing Bituthane membrane. New paving is sloped at one-quarter inch per foot, addressing elevations where the existing building slab sits higher than the proposed construction per verified field dimensions.

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