Renovation plaster, abbreviation according to DIN EN 998-1: "R". Plaster mortar with high porosity, low capillary water conductivity and high water vapor conductivity, especially for use on substrates contaminated with moisture and/or salt. In the case of higher loads, a renovation plaster system consisting of spray grout, renovation base plaster and renovation plaster is required instead of a renovation plaster. The average plaster thickness depends on the degree of salinization, but is at least 20 mm.
Renovation plasters for damp and salt-contaminated masonry can actively dehumidify the substrate and do not lose their substrate adhesion even if moisture penetrates subsequently. Renovation plasters can also be used preventively in new buildings that are at risk of moisture.
According to the manufacturer's instructions, renovation plasters can also be provided with an additional top plaster to achieve an even higher quality surface. Only vapour-permeable mineral paints may be used as paints, which do not impair the moisture exchange of the renovation plaster with the indoor air.
Source: bauwion
