Thin-coat render are the final layer of the external façade. They fulfill a protective function, providing defence against all atmospheric conditions outside the building as well as a decorative function, giving the façade desirable appearance, structure and colour.

Renders are available as ready-to-use mixes or as products requiring earlier preparation. They can be used on even concrete substrates, on cement-lime render or on thermal insulation. They are available in a wide range of colours and textures. Depending on the type of binder, there are mineral binders, which include mineral and silicate renders, and organic binders, which encompass acrylic and silicone renders. Plasters differ from each other in terms of physical and chemical characteristics.