2D section detail of an expansion joint for a flat roof or terrace assembly, drawn at a 1/10 scale. The construction detail illustrates a multi-layer inverted roof system including a rigid structural support slab, internal coating, and a central elastic expansion joint.
Technical layers specified in the legend include a sloped formation layer for drainage, Morter-Plas waterproofing membrane, Roofmate thermal insulation, and Terram separator fabric. The assembly is finished with a protective layer of rounded river pebbles as ballast. This CAD drawing is suitable for architectural construction sets requiring specific roofing and waterproofing interface details. Junta de dilatação.