Stone or ceramic cladding on EPS exterior insulation.

Structure type

External wall with EPS board thermal insulation.

Detail

Installation of ceramic or stone tiles on EPS insulation boards.

Application cycle

1. Standard interior plaster.
2. Brick wall (or concrete, solid brick, concrete blocks, aerated concrete blocks or wood-cement permanent formwork).
3. RALLK K OttO adhesive applied around the edges of the boards and in dabs in the middle (see cycle sheet 13 – Exterior insulation with EPS boards).
4. EPS insulation boards.
5. Skim coat on the insulation boards with RALLK K OttO and embedded 150 g/m² glass fiber mesh, laid from top to bottom using suitable corner profiles, with the vertical strips overlapping by at least 10 cm.
6. 7 – 10 mm stiffening reinforced layer of RALLK Muro K SRG mortar with embedded wide-mesh glass fiber mesh of about 300 g/m², followed by anchors at 5-6/m², of suitable length and type to anchor securely into the wall.
7. Laying of ceramic or stone tiles with RALLK Kerasiv K Flex or RALLK Kerasiv K Fast adhesive, or another C2TE S1 or S2 class adhesive.

Additional information

1. The proposed system can also be used for other insulation boards, after assessing the type and characteristics of the anchoring systems.
2. Based on current site experience, the reinforced stiffening layer and its anchoring to the wall provide the ideal base for bonding stone or ceramic tiles.
3. High-performance, highly elastic adhesives (class C2TE S1 or S2) are recommended to best withstand the shear stresses between the covering and the substrate.
4. See the individual product data sheets for application methods and precautions.