Architectural · A-JECY3

Cement Plaster Wall Horizontal Expansion Joint and Foundation Detail

Materials

Concrete Steel Timber / Wood Metal (misc.)Gypsum / Drywall EIFS / Plaster / Stucco

Elements

Columns Walls Facades / Cladding Foundations / Footings Waterproofing / Flashing Drainage Site / Paving

Connections

HSS Connection

About this detail

A cement plaster exterior wall assembly intersects with a concrete mat foundation and a planter at a horizontal expansion joint. The foundation features a damp-proofing and protection layer extending four inches above and below the cold joint, paired with a self-adhered membrane and UV sheet metal flashing. The wall construction incorporates a two-hour rated steel tube column wrapped in three layers of type X gypsum sheathing per UL X52, exterior gypsum sheathing, weather barrier, and a three-coat cement plaster system over paper-backed metal lath. Wood cladding with tongue-and-groove boards over plywood occurs adjacent to the planter area as indicated on plans. Sealants with backer rods are provided at joints per manufacturer specifications, alongside a plaster weep screed and a continuous termination bar above the sloping concrete sidewalk.

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