Mesh-reinforced skim coat over traditional plaster on aerated concrete blocks.

Structure type

External walls or partitions in aerated concrete blocks.

Detail

Mesh-reinforced skim coat over traditional plaster.

Application cycle

1. First scratch coat to regulate water absorption.
2. Machine-applied plaster RALLK Muro K PM or another standard plaster, class CS I – CS III according to UNI EN 998-1.
3. Skim coat of RALLK K OttO with embedded 150-160 g/m² glass fiber mesh, laid from top to bottom with the vertical strips overlapping by at least 10 cm.
4. White mineral finishing layer of RALLK Rasante K, to be left exposed or painted with any kind of paint (acrylic, acrylic-siloxane, silicate, lime, etc.), indoors or outdoors.

Additional information

1. Based on current site experience, a reinforced skim coat on fully cured plaster is an effective way to prevent hairline cracks in the plaster along the block outlines or the load-bearing elements, caused in the medium and long term by minor settlement, vibrations or thermal expansion.
2. See the individual product data sheets for application methods and precautions.