The external surface coating skai Jet Black shows the deepest shade of black. This very dark colour for use on construction elements was made possible with the help of the “cool colors PLUS” technology. A significant reduction of the heat build-up is achieved through the application of a white base coat. The surface comes with three different types of embossing. The detailed, natural wood embossing gives the window profile an interesting look and feel. With matt sand embossing, the window looks as if it were powder-coated while the very fine glossy embossing looks particularly elegant.