ArcelorMittal Europe – Flat Products

Online client newsletter | March 2025


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La Parisienne loves low carbon-emissions steel

The new trapezoidal roofing sheet range, “La Parisienne”, just launched by Ateliers 3S, uses exclusively ArcelorMittal’s XCarb® recycled and renewably produced steel, resulting in a 67% reduction in the carbon footprint compared to the conventional blast furnace production method.

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For their new roofing range, Ateliers 3S sought a flat steel specially designed for roofing, with a low carbon footprint, high durability, excellent aesthetics, and above-average rigidity.



Ateliers 3S has been inventing and manufacturing highly innovative and aesthetic façade systems together with architects, for more than 14 years, and is now launching its first roofing range, La Parisienne.

Ateliers 3S has been inventing and manufacturing highly innovative and aesthetic façade systems together with architects, for more than 14 years, and is now launching its first roofing range, La Parisienne.

ArcelorMittal, Ateliers 3S’ steel partner since the company was founded, suggested its Granite® Storm offering - a highly durable, attractive, anti-slip, colour-coated steel developed for roofing solutions. An additional benefit is that it is available in ArcelorMittal’s proprietary XCarb® low carbon-emissions steel together with a high yield strength. La Parisienne was born.

La Parisienne is a new steel roofing sheet designed to resemble traditional Parisian roofing with a sleek, modern look, in an impressive pre-painted steel 50μm thickness, providing a 30-year guarantee.

La Parisienne is lightweight and modular, allowing for easy installation on complex roofing. It is suitable for various types of roofing, and is self-supporting, with the steel roofing sheet providing resistance to climate conditions and bearing from one purlin to another. This feature allows for greater design flexibility.

Traditionally, steel roofing sheets have been available in basic colours. La Parisienne introduces six aesthetically pleasing colours, all part of the Esprit Zinc palette, with a unique velvety texture.

La Parisienne has been designed with high-quality finishes. The use of perforated closures allows for the creation of discreet and ventilated ridges that match the aesthetic style of La Parisienne.

Julien Faisandier, Ateliers 3S managing director

“For us as a product manufacturer, the connection between design, functionality and climate protection is fundamental.

With the XCarb® recycled and renewably produced steel, we are able to offer 'La Parisienne' as a product with a very low carbon footprint, while at the same time providing an aesthetically pleasing and competitive solution,” explains Ateliers 3S managing director Julien Faisandier.

Made with Granite® Storm by ArcelorMittal

Granite® Storm is a pre-painted steel roofing with a textured matte finish, particularly suitable for roofs where aesthetics and durability are key assets. It is an ideal alternative to traditional tiled roofs, offering the highest levels of robustness and long-lasting performance. The paint system remains robust even after forming, with non-peeling of the paint film guaranteed.

The processing tolerance of Granite® Storm has been thoroughly tested, with its highly flexible coating allowing for forming to create both new designs and traditional looks.

The product is highly resistant to UV radiation, providing colour stability over time. Its textured surface has also an extra advantage for roofs supporting photovoltaic panels, as it reduces the risk of slipping and provides better resistance to scratches. Its guarantee period is aligned with the expected lifetime of solar panels.

Patrick Le Pense, Marketing manager for construction at ArcelorMittal Europe – Flat Products

Patrick Le Pense, marketing manager for construction at ArcelorMittal Europe – Flat Products says:

“The fact that our low carbon-emissions XCarb® steel is used in an increasing number of applications in a wide range of industries is a great vote of confidence for us. The demand for more sustainable construction techniques and materials is growing rapidly, and we plan to build on our low carbon-emissions steel still further.”

Low carbon-emissions and high strength steels, a double win

XCarb® steel offers a substantial reduction in carbon footprint at manufacturing stage, being produced in an electric arc furnace (EAF) using high levels of scrap and 100-percent renewable electricity.
Additionally, the high yield strength of the steel substrate of La Parisienne offers even greater carbon footprint efficiency, as it optimises the consumption of steel.
Altogether, the combination of both features allows La Parisienne to exhibit a 67% reduction in carbon footprint, compared with the traditional blast furnace production route.



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