Customised façade design
The low thermal conductivity improves thermal separation and helps to achieve low U-values. In many cases, additional steel reinforcement is not required.
GRP for window and door profiles
Pultruded window profiles for optimum thermal performance Sturdy, weather-resistant window and door profiles with the lowest possible U-values, made from maintenance-free GRP (glass-fibre-reinforced plastic) and custom-manufactured for you using the pultrusion process in accordance with your specifications.
Advantages of GRP for architectural projects
Pultruded GRP profiles combine excellent thermal properties with high stability and long-lasting performance – for modern window and door systems.
Permanent outdoor applications
Its coefficient of thermal expansion, which is similar to that of glass, ensures that structures remain reliable and dimensionally stable even when subjected to large temperature differences.
Design with light
The high rigidity allows for slender frame designs and larger glass areas, letting more daylight into the interior.
Delicate structures
GRP does not corrode or rot. Its resistance to UV light and the elements reduces the need for maintenance and helps to ensure a long service life.
Window profile
Paintwork
We offer a paint finish for our GRP door sills. Please feel free to ask us for advice.
Patio doors
GRP window profiles are particularly suitable for large patio doors and windows. We regard the manufacture of profiles to customer specifications as a particular challenge.
The window profile
Excellent thermal insulation results in a low U-value, and in many cases it is even possible to dispense with an internal steel profile: this means less heat escapes through the frame.
Frequently asked questions
Explained briefly. Answered straight away.
Answers regarding areas of application, bespoke manufacturing and supplementary services relating to GRP window and door profiles.
What are the advantages of GRP profiles over steel or aluminium?
Typical applications include window sashes, frames and mullions, skylights, door frames, sliding doors and patio doors, door thresholds, insulating cores, thermal breaks and stiffening profiles.
Does Fibrolux also manufacture bespoke profiles?
Yes. Fibrolux manufactures pultruded profiles to your exact specifications and assists with the development of a design suitable for production.
Can profiles be supplied fully machined?
These profiles are particularly suitable for architects, window manufacturers, joiners and carpenters who require durable and thermally optimised solutions.
Which sectors are GRP solutions suitable for?
Yes. For GRP door sills, Fibrolux offers a matching paint finish on request and can advise you on the most suitable option.
Does Fibrolux provide support with design and material selection?
Yes. You can download the brochure containing further information and examples of use as a PDF here.
Your project
Let’s talk about your application.
Whether it’s window frames, door thresholds or bespoke designs – we’ll support you every step of the way, from the development stage right through to the production of pultruded GRP profiles tailored to your specifications.
Discuss the project