For certain building applications textile industry offers many high-performance products which can outclass conventional systems. Examples are well known outdoor products which combine rain protection/water-repellence with high water vapour permeability by use of membranes or special fabric finishings. Innovative and adaptable textiles and functional membranes from the textile area are introduced and transformed to the building sector. New façade elements with functional multi layers and optical flexible textile outer skin are developed. This system may replace traditional plaster walls by a lightweight solution employing minimum materials, production steps and effort while providing superior performance, innovative and adaptable shaping and aesthetic potential in building design. Experiments and determinations of characteristic parameters are performed in the lab. Investigations on functionality and outdoor suitability are carried out in open field tests under real climatic conditions.