The plinth and perimeter area is one of the most highly stressed areas of a building. It has to contend with rainfall, splashing and high levels of mechanical stress.
The render should always be waterproofed on the plinth area, waterproofing provides additional protection for particularly vulnerable areas.
The detailed image of the base below shows the recommended build up. It is always necessary to apply a reinforcing coat.
In many cases, the substrate consists of bitumen insulation.
Insulant: Baumit PlinthTherm, high density XPS board
Reinforcement layer: Baumit StarContact White
Primer: Baumit PremiumPrimer
Render: Baumit MosaikTop, acrylic based, stone quartz effect render
Sealant: Baumit DS 26 Flex final sealing layer