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  • Granite®

Your guarantee of a long-lasting and sustainable prepainted steel

Prepainted steel has been used for more than 50 years in Europe so ArcelorMittal has had the opportunity to analyse in depth how its products actually behave in situ in different areas. Today we are in a perfect position to assess the effects of time on our prepainted steel. Our integrated production process (from hot strip mill through to coil coating) ensures full traceability and a high level of quality.

The latest innovation in coating systems not only increases the lifetime of construction products, but also reduces their environmental impact. Granite® has become a guarantee of quality, durability and sustainability. Architects, insurance companies, contractors and facade and roofing professionals can be sure of specifying the right product for their projects, with a full guarantee.

The guarantee is automatic: as soon as you buy Granite® you will automatically be covered!

Non-perforation and paint adhesion are the main features to be guaranteed. But for many projects, stability of colour over time is essential to ensure that architectural buildings continue to look attractive and commercial buildings maintain their brand image. This is why ArcelorMittal includes all of these aspects in its guarantee.

The following provides you with the basic details of our automatic guarantee. The full document is available on request.

Duration of the guarantee

The choice of coating for roofs and claddings depends on the external environment and the life expectancy.

For industrial or logistical buildings, a 10-20 year guarantee is often enough, but much more is expected for public and residential buildings. To meet these expectations, ArcelorMittal has developed some high-end products guaranteed for up to 35 years, such as Granite® HDX and Granite® Storm.

Construction products - guarantee against non-perforation and non-delamination for conventional roofing and cladding


Granite® HDX and Granite® Storm are guaranteed for up to 15 years in a marine environment > 300 m!

E: guarantee provided after receipt of the environmental questionnaire

For further information, please refer to our guarantee text, available on request or in SteelUser.

For other or specific environments, we will be more than happy to consider your request.

If you are in any doubt about which product to use for a particular application, we recommend that you take a look at Steel Advisor.


Some applications requiring a high degree of flexibility or associated with specific corrosive environments require dedicated coating systems.

A selection by application of specific or corrosive environments: guarantee against non-perforation and non-delamination for conventional roofing and cladding 



Copyright coil pictures: Jeroen Op de Beeck

Geographical scope of the guarantee

Our automatic guarantees are offered in many countries in Western and Eastern Europe, as shown below. Guarantees may also be granted for other geographical zones – do not hesitate to contact ArcelorMittal.


How does the guarantee work? FAQ

  • Do I need to ask for the guarantee?

If you buy a Granite® product, a guarantee is automatically granted and does not require any registration. This gives the assurance that your projects and your customers’ projects are systematically protected. Nevertheless, for some applications, locations or environments outside the general guarantee scope, an environmental questionnaire must be completed.

  • How do I obtain the full guarantee text?

When you buy a Granite® product, you will have access to the detailed guarantee text, which will provide you with all the information you need.

  • Is the guarantee period the same as the life expectancy?

The life expectancy of a building system is much longer than the guarantee period, and can vary depending on many different factors. At the end of the guarantee period, the owner should consider overpainting the roof or cladding to extend its lifetime.

  • Does the Granite® guarantee vary depending on the application?

The duration of the guarantee is the same for both roofing and cladding applications.

  • Does the Granite® guarantee vary depending on the colour?

Some suppliers may make distinctions for non-perforation and non-delamination guarantees according to the colour category. The Granite® automatic guarantee for non-perforation or non-delamination of the paint film is the same whatever the colour.

  • Is the guarantee transferable?

Yes, the guarantee may be transferred in the event of a change of control of the Beneficiary’s company.

  • Is it possible to have an automatic guarantee for Granite® products outside Europe?

Yes, specific guarantees can be granted for locations outside Europe. Please contact your commercial support team.

  • My project does not come under the scope of the guarantee. How should I go about requesting a guarantee?

Some specific guarantees can be granted. Ask your guarantee contact for the environmental questionnaire.

  • I see building systems made of Granite® offered with a longer guarantee period than that granted by ArcelorMittal. What is the reason for this?

ArcelorMittal grants a guarantee to its own customers, but leaves it to the discretion of its customers to give the end user a few years’ additional guarantee, depending on the prevailing conditions where the products are to be used.

  • How can I be sure that the steel used for the roofing tile profile that I buy is covered by the Granite® automatic guarantee?

ArcelorMittal delivers prepainted steel for roofing profiles with “Granite®” marked on the backing coat. So you can be sure that the prepainted steel used is covered by our automatic guarantee. Always check that the roofing tile profile is made of Granite® before buying it.

Need to contact someone?

Do not hesitate to get in touch with one of our local agencies.