Reliable centre seal system
With a depth of 82.5 mm, the S9000 system will satisfy the highest expectations! It is a system that combines the advantages and features of both centre and stop seals. Excellent thermal protection is provided by the width of the system, six chambers in the frame and sash, and a consistent system of gaskets arranged in three planes.
Increased thermal insulation of the PVC S9000 window is possible thanks to the flexible centre seal. It also serves to protect the hardware components against moisture, and thus also ensures that they work more efficiently when opening the window, especially at low temperatures outside.