The latest technical guidelines of the Gütegemeinschaft Kunststoff-Fensterprofilsysteme, consumer magazines relating to PVC windows and many other publications can be found here in the Downloads area. The RAL Quality and Test Requirements (RAL-GZ 716) and the Technical Appendix are available as brochures with costs.
> Brochures to order (RAL-GZ 716 and Technical Appendix)
> Issues relating to PVC windows
> Technical guidelines and information sheets
> Image brochure and annual reports
> Environmental Product Declaration (EPD)