For a long time, render was considered old-fashioned and was often seen only as an alternative design material. Why? Probably because plastered house facades are generally perceived as something traditional and solid and do not necessarily stand for innovation. The tendencies and phenomena in current architectural design such as perforation, transparency, virtual or parametric aesthetics can often be better implemented with other materials. In addition, there is the prejudice that the material plaster lacks technical and design development.
In the meantime, render is experiencing a renaissance, which is certainly also due to thermal insulation composite systems. Particularly in residential construction, large-scale applications of plastered surfaces can be found in standard procedures in the course of energetic upgrading.
However, the material and aesthetic value of plaster goes far beyond this common application practice. Planners and craftsmen are increasingly studying traditional techniques in order to respond to the threatening monotony of smooth render on facades with creativity and design impulses.
For render, especially when applied as a thick-layer system, opens up enormous design possibilities and great sensual qualities. Naturalness and familiarity, but also the desire for local materials and traditions, for subtle structures instead of smooth surfaces becoming more important.
Further benefits are the economical price-performance ratio, simple processing, possible applications on historical as well as listed buildings, wide-ranging colour design and abundant, natural raw materials.
Historical techniques with render
In the field of construction, render always has had a long tradition from antiquity through baroque, historicism and the Wilhelminian period and the classic "White Modernism" of the 1920s - whose white cubes are inconceivable without render - to the present day. At all times, the historical techniques were adopted, varied and supplemented. Technically, the materials developed from loam to gypsum and lime render to lime-cement and cement renders. For many years now also with coatings based on synthetic materials.
Above all it is the design possibilities inherent in the render material that have always stimulated and challenged the imagination of master builders, architects and craftsmen: Broom finish render, comb finish render, trowel finish render, sgraffito or scratch render, nail board render, rake finish render, rough render or spray render, to name but a few. What these techniques have in common is that the render is treated in a variety of ways during and after application.
Modern techniques with render
Whether smoothed, textured, whitewashed, felted, worked with roller and stencil or washed with a brush. Coloured with pigments or various grain shapes. When it comes to renders, there are hardly any limits to creativity and design possibilities.
After years of smooth renders being the first choice for builders and architects, coarsely structured render surfaces finished with a trowel, roller, spatula, brush or broom are currently experiencing a renaissance.
For the result to be right, these creative processing techniques require sound specialist knowledge and the necessary craftsmanship.