AK-FLEX with ZipTex

The foamed top-mounted box AK-FLEX is specially designed for new buildings or renovations together with the entire window and meets the current requirements for both thermal and sound insulation.

You can use the AK-FLEX for all wall structures and installation situations. Regardless of whether thermal insulation composite system, exterior plaster or slate facade, the AK-FLEX universal box can always be used. Its flexibility and the possibility to adapt its external dimensions to the building situation makes it particularly suitable for prefabricated houses or requirements for fixed wall thicknesses.

ALUKON ZipTex curtains are UV-resistant, water- and dirt-repellent and therefore weatherproof. They are available in different types of fabrics and a huge variety of colours.




  • system component: window and ZipTex as one unit

  • suitable for all wall structures (without clinker)

  • available with roller shutters, external venetian blinds or ZipTex curtains
  • excellent heat and sound insulation characteristics
  • wind resistance in box/window system
  • Made in Germany