The Saimex Srl company specializes in the production and sale of structural profiles in composite material – Wood Fiber and Glass Fiber – and in particular in the production of THRESHOLDS and parts of windows in FIBERGLASS, exploiting the properties of the material of thermal insulation (lambda value (λ) = 0.25) and resistance to loads up to 1000 kg.

Saimex profiles, thanks to their insulating structure due to the composite material they are made of and the thermal break, are used as thresholds for tile-and-slide systems and as structural parts of windows and doors.

We are one of the leading manufacturer companies of GLASS FIBRE THRESHOLDS for WINDOWS for the most important European brands.


Among the main features of Saimex fiberglass THRESHOLDS:

• Thermal insulation

• Mechanical properties comparable to steel

• 100% waterproof

• Total absence of maintenance; since Saimex thermal break windows and doors are resistant to the outside, it guarantees less maintenance costs on the final product.

• High resistance to corrosion and sea water

• Resistance to salt mists

• Anti-condensation

With Saimex fiberglass profiles it is also possible to prevent or eliminate thermal bridges.


The company Saimex srl is also highly specialized in the realization of COMPLEX SECTIONS AND CUSTOM PROFILES, and we will be happy to give you support with your projects.

Saimex s.r.l. has in fact a technical office always available to listen and meet your needs. Our team of engineers has a long experience in the design and structural calculation of fiberglass profiles for windows and thresholds for sliding windows.

We have also developed a type of smooth surface finish that does not require further coating, or the application of a protective film and we offer the possibility to choose from a wide range of RAL colors and metallic colors.


Thanks to the thermal properties of composite materials, the doors, windows and thresholds for tile-and-slide systems in fiberglass are important for the energy insulation of homes and buildings and for the Casaklima project which allows buildings to save energy (by reducing consumption) and economical to sustain themselves.

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When designing windows and doors it is necessary to take into account various details. Among them, fire resistance is included. Safety is no longer considered as a less important aspect when designing the details of the dwelling, The only reason why it is becoming widespread the choice of fiberglass standard profiles, a solution that ensures a good result compared to that of steel.

This applies to many cases. Fiberglass standard profiles are a very valid option, as far as aesthetics and thermal insulation– is essential to obtain CasaClima certifications– as well as fire resistance are concerned.

This aspect is essential when it comes to construction quality, the reason why it is so important to inquire about precise technical data concerning fiberglass standard profiles and fire resistance.

In this regard it is worth remembering that fiberglass pultruded standard profiles are considered to be ASTM 84 UL<25fireproof products. This technical data helps us to get a complete picture on pultruded and fiberglass standard profiles as a choice allowing to make a qualitative leap compared to steel solutions that still dominate many alternatives for designers.

However, it is important to take a first step and change things, remembering that fiberglass pultruded profiles can be both standard and personalized ones with non-slip finish, which does not change their fire resistance in any way.

Besides lightness and the fact that, unlike steel, the installation of fiberglass standard profiles do not need a double and triple chamber, the aspect of aesthetic customization is very interesting, as well.

Fire-resistant fiberglass standard profiles – however, very important  – is, therefore, only one of many benefits given by the use of a sustainable and efficient solution which is perfect for windows and doors intended to last a long time and able to ensure maximum comfort.

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