The new hybrid sesign window system from Schüco is a unique choice for your building. It has an exterior surface of high-quality, puristic aluminium, while the interior is made from PVC-U to offer maximum thermal insulation. This perfect combination of two long-lasting materials can also be tailored to fulfil ambitious design and colour requirements. The flush-fitted aesthetic of the Schüco Symbiotic series of windows and window doors is particularly well-suited to modern architectural concepts.