Wall junction of an exterior walkway in historic buildings.

Structure type

Walkway or path outside the building finished with clay pavers or stone elements (porphyry, limestone, granite).

Detail

Waterproofing of the base with a natural hydraulic lime product before laying the natural hydraulic lime screed.

Application cycle

1. RALLK ElastoKalce waterproofing coat based on NHL 3.5 natural hydraulic lime, applied on the blinding concrete or the base slab of the outdoor walkway next to the wall.
2. Screed more than 4 cm thick made with RALLK Massetto Kalce, or thin RALLK Massetto Kalce BS screed where it must be thinner than 4 cm to match the finished levels. The screed under the ceramic or stone tiles must have suitable falls to drain rainwater away from the base of the wall.
3. RALLK Kerasiv Kalce adhesive for laying brick pavers or stone tiles outdoors, in small or large formats.
4. Brick pavers or stone finish covering.
5. Protective water-repellent exterior plinth plaster, at least 2 cm thick, made with RALLK Muro K Idro based on NHL 3.5 natural hydraulic lime on solid brick, mixed stone or calcarenite walls, where the plinth also needs restoring.

Additional information

1. The screed under the brick pavers or stone tiles must have suitable falls to drain rainwater away from the base of the wall.
2. If applying two coats of waterproofing, wait at least 24 hours between the first and second coat.
3. Lay the finish covering at least 24-48 hours after applying the waterproofing.
4. Make sure the waterproofing is turned up onto the plinth plaster to the height of the skirting, if there is one, or at least up to floor level. A 120-150 g/m² glass fiber reinforcing mesh, or a rubberized band or tape, can be embedded in the waterproofing at the upturn corner.
5. See the individual product data sheets for application methods and precautions.