Wall junction of a balcony or terrace.

Structure type

Terrace or balcony finished with tiles or stone elements (porphyry, limestone, granite).

Detail

Wall junction: laying of the finishing elements after waterproofing the existing screed.

Application cycle

1. Existing screed of sand and cement or another hydraulic binder on the concrete slab of the balcony or terrace floor, or on another structural element.
2. RALLK ElastoKappa waterproofing coat, applied on the existing screed and turned up vertically onto the plinth plaster.
3. RALLK Kerasiv K Flex adhesive for laying ceramic or stone tiles outdoors, in small or large formats.
4. Ceramic or stone finish covering.
5. Protective water-repellent exterior plinth plaster, at least 2 cm thick, made with RALLK Muro K Idro on brick, solid brick, concrete, sand-cement block or mixed stone walls, where the plinth also needs restoring.

Additional information

1. The screed under the tiles or stone covering must have suitable falls to drain rainwater away from the base of the wall. If it does not, the falls can be properly restored after the waterproofing, while laying the finish, or before the waterproofing with a thin (10 – 40 mm) RALLK Massetto K BS sloped screed, depending on the levels to be restored.
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.