Residential Construction Detail: Expansion Joint for Adjacent Units

Architectural detail showing the expansion joint design between two adjacent residential units. The drawing presents three views (plan, superior, and inferior) at 1:25 scale, illustrating the waterproofing and structural separation system.

Key Components:
– 6 cm polystyrene sheets for expansion joint construction with mortar finishing
– Multicapa catalytic asphalt waterproofing system that covers the entire parapet wall
– 100 mm PVC drainage pipe connected to pluvial register
– Hydrated lime-sand mortar (1:3 ratio) plaster with sponge finish
– White matte vinyl paint (Sherwin Williams) application with one sealer coat and two paint coats

The detail emphasizes water management at the critical junction between housing units with a two-way slope design in hydraulic mortar (1:4 ratio). The joint construction prevents water infiltration while allowing structural movement between adjacent buildings.