1/ Thermal performance

PVC-U is a graet insulator. PVC-U is the right material to obtain good thermal results. zendow also has the added advantage of a high thermal performance and a good U-coefficient.

The U-Coefficient determines the usable thermal characteristics that correspond to the average circumstances involving changes in temperature, moisture and surface that can occur in a building.

Acoustic performance

PVC-U offers good guarantee for sound insulation, as for thermal insulation. But here, zendow also offers additional advantages in performance.

  • The 70mm concept of the profile provides the possibility to place glazing with a thickness of up to 41 mm
  • The maximum contact area on the frame of the TPE seals guarantees a good seal

Density of water and wind

The bi-functional universal sealing system has been especially developed to guarantee simultaneous sealing of the glazing and fastening of the window. This bi-functional sealing is, with its optimised geometry, adapted to the concept of the profiles. It's been developed with high-quality materials and is pre-installed during fabrication, which guarantees a consistent quality in placing.

The drainage system

Geometric study of the profile has ensured a perfect drainage system, due to a better discharge. The drainage system offers a dry zone to protect the ironwork. Your window will remain in perfect condition for longer, thanks to the improved protection against corrosion.


A barrier protects the striker plates, incorporated in the dry zone, against moisture and corrosion. This barrier also makes the striker plates less accessible by forming an extra obstacle against burglary.

The concept of the zendow profile is compatible with the whole anti-burglary system. In addition, it offers more solutions for security.

  • Better placement of hardware, tight against the steel reinforcement
  • Protected position of the striker plates behind the barrier
  • Good hold of the glazing due to the 20mm deep gutters
  • An optimised door concept

Double glazed window systems are available from PVC Windows .