heroal window systems stand out for their great flexibility and efficient fabrication. Various systems, system variants and additional components make it easy to meet individual customer needs and different technical requirements, for example on thermal insulation, accessibility and burglary resistance. A design principle across the range of systems and design depths, the utilisation of standardised parts and well-thought-out design details provide for a fast, process reliable manufacture and an extremely efficient fabrication. The material aluminium is characterised by its excellent weather resistance and material stability. It provides for a wide range of structural designs and aesthetic looks, and offers a wide variety of colours and shapes.