The inner and outer facing widths for all mullion and transom profiles is 50 mm. The depth of the mullions can be selected according to static requirements up to 195 cm. The variety of covering shells can give the profiles differing looks. This takes into account the most diverse design options. The H-PVC insulating bridge ensures a solid connection of the profile and provides the necessary insulation. The AT 500 F is classed in the frame materials group 1 as per DIN 4108, Part 4.