Skim coat over traditional plaster with radiant wall or ceiling heating.

Structure type

External walls, partitions or floor slabs in clay brick with radiant heating.

Detail

Skim coat over traditional plaster with radiant heating.

Application cycle

1. Standard plaster, class CS I – CS III according to UNI EN 998-1, with an embedded radiant heating system.
2. Skim coat over the whole surface of the plaster containing the radiant heating system, or extending at least 50 cm beyond the heated area, with RALLK K OttO, RALLK Rasante K or RALLK Raso K and embedded 150 g/m² glass fiber mesh, laid from top to bottom with the vertical strips overlapping by at least 10 cm.
3. Finish with a finishing coat, RALLK Marmo K powder mineral finish or another finish, acrylic, siloxane, lime or silicate paste finish, or lime, siloxane, acrylic or silicate paint, as set out in the specifications.

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 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.