The GP450 system belongs to the thermal insulation systems generation and has been designed with attention to detail in order to meet contemporary architectural needs for energy efficiency and safety. This line’s wide range of profiles offer numerous innovative solutions, from flat to curved sections, as well as the ability to apply complex typologies such as “aller-retour” doors, rotating windows and opening frames with hidden sash in order to achieve a highlevel aesthetics.
The available profiles collaborate perfectly with high-quality components and mechanisms which underline the system’s multifaceted and ergonomic nature. The system’s non-negotiable priority for maximum energy savings and high safety is ensured due to the possibility of perimeter locking and the use of 24 mm reinforced polyamides (PA66 GF25) offering a Thermal insulation Index Uf=2.2-2.6 W/m2K and a Sound Reduction Index Rw of 43 dB.

Features & Benefits:

  • Τhe maximum security provided by the use of multiple locking combined with the high performance of thermal and sound insulation guarantee excellent quality, functionality and significant energy saving.
  • Use of glass reinforced polyamides (PA66 GF25) 24 mm.
  • Μulti-chamber central gasket that secures optimum impermeability preventing energy loss.
  • Manufacturing capabilities with bead cutting of 45° degrees and snap-joined bead for excellent aesthetic result to the inside.



The energy (thermally-cut) frames stand out from the conventional ones, thanks to the use of a special insulating material (polyamide) which is a bad heat conductor) that distinguishes the window profiles in two parts, both exterior and interior. In this way, high thermal insulation is achieved, with considerable benefits also for soundproofing.

Thermal insulation of the windows (coefficient of thermal conductivity) is measured in W / m2k. This factor defines the amount of heat in Watt per unit of time that a 1m2 frame can penetrate when the temperature difference between its two surfaces (in-out) is 1 degree (1 ° C).

An energy aluminium frame also requires the corresponding glass (glass pane). A glass pane and aluminum profiles have different coefficients. The coefficient of thermal permeability of the aluminum profile is called Uf (U Frame – frame) and the coefficient of the glass is called Ug (U Glass – glass). Combined, they give the Uw coefficient (Window U – window), which refers to the frame as a whole, precisely because the glass and the window profile occupy a different surface each time depending on the dimension of the window frame (bathroom window, balcony door, etc.).

In summary, the benefits of heat-shrinking frames are the following:

  • Energy saving
  • Reduction of cooling / heating costs
  • Resistant to extreme weather conditions
  • Minimizing of water vapour penetration on the inner surface of the profiles
  • Low air permeability
  • Soundproofing
  • Delivers transvalue on the property (rental / sale)