Window systems

Top Glass is the right manufacturer of TRIGLASS® fibreglass profiles for window systems. Our GRP profiles are custom made to the customers own design and specifications. They  can meet specific requirements in terms of shape and chemical or physical properties.
TRIGLASS® profiles are ideal for windows because of their high level of heat insulation.  This is guaranteed by their low overall heat transfer coefficient and high dimensional stability even in the face of large temperature changes.
In addition, thanks to their superior mechanical properties and light weight the window systems made with TRIGLASS® profiles do not need any additional internal reinforcement with metal.

TRIGLASS® pultruded profiles make a fundamental contribution to energy saving: this and their sectional design flexibility make them an ideal option for windows of the future. TRIGLASS® fibreglass profiles can be suitable for: windows frames, thresholds and shutters.



Furthermore we undertake machining such as cutting, drilling, CNC and bonding according to the demands of our customers.
Top Glass can also provide a coating service for TRIGLASS® fibreglass profiles, suitable for both indoor and outdoor applications.


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What are the possibilities?

  • Window Frames
  • Thresholds
  • Shutters
  • Brise soleil

Our product advantages in this sector: Window systems

Composite materials can be worked using conventional woodworking machines that have the ability to use diamond tools and/or those specified for fibreglass. You can also perform other operations on them such as connections with bolts, screws and rivets as well as gluing and painting.

A wide choice of resins allows the design of composites with strong resistance to atmospheric agents and weathering. Rain, particulate abrasion, UV radiation and temperature boundary conditions are easily controlled by means of different formulation strategies and/or surface protection.

The amorphous structure of composites stands up very well in large temperature fluctuations without presenting significant or permanent sectional deformation. The response of the material to applied loads is practically always in terms of elasticity. It has low creep and is consequently very stable.

Predicting the durability of composite materials is a topic Top Glass has studied for a long time. Our findings suggest optimal behaviour in outside conditions and bad weather. Of course, special conditions should be assessed to select the raw materials best suited to maximizing long-term mechanical and aesthetic features.

The specific gravity of pultruded material is about 1.8 g/cm ³. It is much lighter than steel (7.85 g/cm ³) and aluminium (2.7 g/cm ³). Its high performance relative to weight allows the design of structures with low energy impact. Its lightness is also an advantage in relation to transport and logistics as well as low response to inertial forces, relevant to building structures in seismic areas.

The mechanical properties of composites are generally high and can be customized to take advantage of the anisotropy of reinforcement structure. The strongest enhancements have been in the longitudinal direction, which coincides with the direction of the pultrusion process. Resistances in that direction are now comparable to those of steel. In the case of unidirectional composites, longitudinal strength values can be triple those of steel. In contrast to traditional metal materials, pultruded profiles reflect behaviour that is elastic-brittle until breaking.

Composites have an excellent ability to withstand environmental agents and highly aggressive chemicals. A wide range of resins makes it possible to design materials adapt for contact with diverse chemicals, especially acids, alkaline substances and solvents.

Fibreglass composite materials have a very low thermal conductivity coefficient, around 0.3 W/mK. This feature offers significant advantages in situations where energy loss might have a negative impact, both economically and functionally. This is particularly the case in the fields of construction and thermal insulation.

Main products used in this sector: Window systems