Why you should choose a window profile from Fibrolux:

  • Can also be used in very cold or hot regions
    due to the similar coefficient of thermal expansion as the glass pane, the profile can be used even in countries with large temperature differences between inside and outside. The high heat resistance ensures that the material retains its shape even at high temperatures.
  • Optimal thermal properties
    the excellent thermal insulation leads to a low U-value and often even a stabilizing steel profile inside can be omitted: As a result, less heat escapes to the outside via the frame.
  • More light in the interior
    the highly rigid material enables more filigree profiles and thus larger window areas: More light in the interior.
  • Low maintenance costs
    GRP does not rot or corrode: no need for costly annual protective coating!
  • Durable investment
    Due to good UV and weather resistance, the material has a long service life.

Fibrolux window profiles are ideal for:
Architects, window manufacturers, carpenters and joiners

Here you can use fiberglass Fibrolux profiles:

Window sash, frame and mullion
Door frame
Door and sliding doors and thresholds
Door interior stiffening profiles
► Exterior parts for wooden windows
Insulating cores for metal windows and doors
Interior profiles for fire doors
Industrial door frames
Refrigerated door frames and panel caps
thermal separations
heat-insulating stiffeners for PVC profiles PVC



Thermal conductivity of different materials

A small selection of our products

GRP/wood combination


Door threshold


Window facade Kranzler Eck, Berlin