Round window is a fastidious (demanding) design solution. For some people they are associated with portholes, for others – with flying in a plane or travelling on a cruise ship. In any case, the round window immediately attracts attention and adds originality to the design. This shape can be combined with any style, and thanks to smooth lines complement both restrained and fantasy facades. Viknar’off round windows are just as good as standard windows in terms of strength, heat retention and sound insulation.