On 17 February 2022, IndustrieBau will host a technical webinar, 'Industrial roofing - planning, maintenance, and legal regulations,' where ArcelorMittal Europe will present the latest innovations in steel for roofing for industrial and logistics buildings.

When? Thursday 17 February 2022 from 13.30 - 15.00 CET.

Where? At your office or home office via Zoom

Topics will include:

•    Specifications and avoidable errors in the execution and maintenance of lightweight steel industrial roofs
•    Metal roof systems with superstructures and extensions such as PV systems
•    New technologies and materials in the execution of industrial roofs in metal construction

Steel for innovative roofing solutions

ArcelorMittal's contribution will outline challenges and expectations in terms of corrosion resistance, durability, and sustainability. This will include requirements, norms, and regulations with a specific focus on fire and thermal performance as well as specific cases of renovation and solar applications.

The session will include a live Q&A.

Registration

For registered Constructalia users, participation in this IndustrieBau seminar is free of charge!

Click on the below link to register with/log in to Constructalia to access your invitation code.

With this code, you can register for the webinar as a guest on the IndustrieBau website.

Related link(s)

Webinar: Steel for innovative roofing solutions: information + registration (in German)

Webinar 17 February in German: Steel for innovative roofing solutions

The successful transformation of the steel industry includes zero-emissions steel products being accepted by the end user – and green steel certificates are an important part of this mission.

ArcelorMittal’s partners are key

From ArcelorMittal's point of view, the companies making steel products for end consumers play a central role in reaching this goal. “In the case of ArcelorMittal’s XCarb® green steel certificates, our customers who purchase the certificates can pass the CO2 savings onto their end customer, in line with the Scope 3 accounting approach,” says Jochen Grünewald, Managing Director of ArcelorMittal Commercial DACH.

Bette, a manufacturer of high-quality bathroom elements made of enamelled titanium alloy steel, and OLINT®, a producer of roofing applications under its Rufster brand, are just two of the many ArcelorMittal partners making valuable use of the XCarb® green steel certificates from ArcelorMittal Europe – Flat Products.

Bette makes first XCarb® green steel certificates purchase

The managing director of sanitary supplier Bette, Thilo C. Pahl, is on board with ArcelorMittal’s goals: “We have ordered the first 1000 tons of steel based on XCarb® green steel certificates for our products and see this as a contribution to support ArcelorMittal in the required transformation. In addition, steel produced with a lower carbon footprint fits very well into our own sustainability strategy.”

The shift towards CO2-neutral products is already evident to Bette: "We are currently noticing an increasing interest and demand for green products and our efforts and ambitions in the area of sustainable resource management,” says Thilo C. Pahl.

OLINT® inspires customers to think green with XCarb®

Producing and selling roofing tiles, guttering, and other accessories typically made from organic coated Granite® Quartz and Granite® Ultramat from ArcelorMittal under the Rufster brand, OLINT® passes on the reduction of Scope 3 emissions to their customers.

Their goal is to inspire clients to make environmentally friendly purchasing decisions when buying roofing products. “We want to actively involve customers in an effort to reduce CO2 emissions across the industry,” says Liviu Cusiac, CEO of OLINT®, who have recently purchased XCarb® green steel certificates for 195 tonnes of Granite® pre-painted steel. “Normally this amount of steel would result in just over 400 tonnes of CO2 emissions. All [customers] need to do is place an order for Rufster products made with XCarb® green steel certificates! It’s that simple,” notes Liviu Cusiac.

Text:
Constructalia
ArcelorMittal Europe Communications

Images:
ArcelorMittal
Bette
OLINT®

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Bette

OLINT®

Across Europe, standing seam roofs are a key feature in the landscape of many cities and towns. Made from flexible metals, they are an ideal solution for the odd-shaped roofs of apartment blocks and public buildings where every millimetre of space under the roof is utilised. The standing seam provides a high level of resistance to wind and excellent watertightness, making it a popular roofing solution today. Organic coated steels such as the Granite® HFX Cool range from ArcelorMittal Europe – Flat Products offer the necessary pliability, combined with a hard-wearing finish that is guaranteed for up to 20 years. Bevego, a leading provider of roofing solutions and equipment for the Swedish market, recently started utilising the latest product in the range – Granite® HFX Cool Matt.

Standing seam roofing

Traditional standing seams are formed from strips of metal which are laid vertically down the roof. The standing seam is formed by bending up the edge of a strip and folding it over, together with the edge of the neighbouring strip. The result is a double standing seam which is totally weatherproof.

Roofing complexity demands ductility

“To achieve the double standing seam, roofers need flexible materials,” says Johan Cronhamn, business area manager for Bevego. “For complicated roofs with lots of dormer windows and chimneys, the work has to be done on site and at height. Granite® HFX Cool Matt handles well and can be formed at temperatures down to -10°C – a key consideration when it comes to the Swedish climate!”

Traditionally, standing seam roofs were made with copper and zinc – metals which are initially bright but become duller over time. In the early 2000s, materials with a gloss finish became more popular. Over the last few years, the market has switched back, explains Johan Cronhamn: “There is a strong preference now for low-gloss roofing. The steel is bent and pressed into shape on the roof and the matt colour disguises any minor marks. That is another reason for the growing popularity of Granite® HFX Cool Matt.”

Magnelis® – the new material for standing seams

Bevego has also been working with a sister company to develop roadside safety equipment out of Magnelis® coated steels from ArcelorMittal. From autumn 2021 they will start to use Magnelis® for standing seam roofs. “Architects like the patina that darkens over time, and Magnelis® has minimal reflectivity, making it suitable for low buildings,” says Johan Cronhamn.

“The Magnelis® we use in roadside applications has a thickness of around 3.0 mm, and it is able to withstand the very corrosive effects of road salts,” notes Johan Cronhamn. “In roofing applications, we will use it in a thickness of 0.6 mm. That will provide the material flexibility roofers need, and long-term protection against corrosion.”

About Bevego

Bevego is a leading provider of sheet metal, ventilation systems, and equipment for roofing and industry applications. Based in Sweden, the company operates more than 30 retail outlets, a steel service centre, and four plants which produce ventilation systems.

Text:
ArcelorMittal Europe Communications
Constructalia

Images:
brizmaker / Adobe Stock by courtesy of Bevego
Palatinate Stock / Shutterstock.com

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ArcelorMittal Europe – Flat Products has created a new product designed for use in extreme climates. Granite® HDXtreme is the latest prepainted steel in ArcelorMittal’s organic coated Granite® range. Granite® HDXtreme is uniquely beautiful, resilient against corrosion, sustainable, and can be used in both indoor and outdoor applications. A three-layer coating system provides high levels of protection against UV and corrosion. This enables ArcelorMittal to guarantee the steel’s performance. Granite® HDXtreme comes in a vast palette of colours and three different finishes to make any project unique.

Three-layer coating system

The strength of Granite® HDXtreme comes from its three-layer coating system which ranges from 70 to 75 microns (µm) depending on the finish. Each layer performs a different but integral function.

The primer layer plays a key role in corrosion protection by ensuring the top coat adheres tightly to the underlying steel. On top of that is a polyurethane basecoat which ensures the steel’s durability and provides the final colour. The coating is finished with a layer of varnish which adds texture to the coating, increases durability and surface robustness, and enhances the UV weathering potential of Granite® HDXtreme.

Weathering resistance

Granite® HDXtreme already meets the requirements of the updated EN 10169 standard for continuously organic coated flat steels. Its exceptional UV resistance offers colour stability for many years. Granite® HDXtreme is also ready to pass the upcoming new RUV5 UV resistance standard when it is published later in 2021.

The coating has also been evaluated by exposing prepainted samples of Granite® HDXtreme to accelerated UV, humidity, and temperature variations for up to 4000 hours. Natural outdoor exposure tests have also been carried out at locations around the world.

Automatic guarantees

ArcelorMittal’s extensive experience and testing, including in highly corrosive seafront locations, translates into a long-term guarantee of up to 40 years for Granite® HDXtreme. The guarantee is applicable to roofs and facades as well as the installation of rooftop photovoltaic modules.

Samples

Samples of Granite® HDXtreme are available through our online sample shop.

Three finishes, almost 50 colours

Created in consultation with architects and designers, Granite® HDXtreme is available in a huge palette of colours and three different finishes: satin, matt, and sparkling.

The satin finish is available in either 15 or 30 gloss units (GU) and has a grained texture. The matt (<10GU) finely wrinkled finish is available in four colours, and a sparkling, grained 30 GU finish is available in five colours. The latter are amongst the most attractive and sparkly steel finishes available on the market. More colours may be added depending on demand. The low gloss, matt finish is ideal for large flat panels and cassettes, while the standard and sparkling finishes are more suited to small panels.

9 solano colours have been added to the colour palette. Click on the image below to view.

Highly sustainable

The steel is designed for roofs and facades on buildings near the sea, and its performance is guaranteed for up to 40 years. Free of hexavalent chromium and heavy metals plus 100% recyclable, Granite® HDXtreme is highly sustainable: it has a lower CO2 footprint compared with alternative solutions such as aluminium.

The first building with Granite® HDXtreme

ArcelorMittal Ghent’s Indi building in Belgium is the first building to be clad with Granite® HDXtreme. Located close to the industrial environment of the mill and the sea, Granite® HDXtreme was the ideal choice.

Text:
ArcelorMittal Europe Communications
Constructalia

Images:
Jeroen Op de Beeck and Philippe Vandenameele
ArcelorMittal

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ArcelorMittal Construction Sweden has completed its deal with Llentab, a manufacturer and contractor for steel buildings, to acquire its Kungshamn panel production line in Sweden.

Successful teamwork

News of the deal was first announced in December 2020 and since then, intensive work has been underway to prepare for the takeover on 1 April 2021. On this day, the takeover was celebrated with a ceremony in the production premises in Kungshamn.

Speaking on-site, ArcelorMittal Construction Scandinavia CEO Van Hoa Nguyen said: "We are very happy to be celebrating the completion of the deal today and the start of ArcelorMittal operating here in Kungshamn. There is a lot involved in a successful takeover of an industrial asset such as this panel production line in terms of both people and technology. I am extremely proud of everyone in the team who has put their soul into getting everything in place."

Developing and expanding production

The line, which produces mineral wool (MiWo) panels for steel buildings, adds to the existing profile production lines in ArcelorMittal Construction’s Swedish business and will boost the company’s competitiveness in the Scandinavian market by giving it its first panel production manufacturing capability in the region.

“This acquisition will allow us to further develop ArcelorMittal Construction’s business in a very dynamic market by developing and expanding production of MiWo panels in Kungshamn to its full potential and becoming the first-choice supplier of panels in Scandinavia. We will continue to invest in the business here in Kungshamn and hope to create more job opportunities in the area" Van Hoa Nguyen continued.

Production in Kungshamn will be run in close cooperation with Llentab. "We welcome ArcelorMittal as a ‘neighbour’ here in Kungshamn and look forward to continued cooperation with them," said Stefan Eklund, CEO of Llentab Group.

ArcelorMittal Construction

ArcelorMittal Construction creates innovative building systems for a broad range of buildings and has a presence in 15 countries with around 2000 employees.

Text:
ArcelorMittal Europe Communications
Constructalia

Images:
ArcelorMittal

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Steel roofing is a popular choice in the construction and renovation market. The numerous advantages of steel roofing are what make it so convincing.

The advantages of steel roofing

The roof is one of the most visible, eye-catching elements of a house. If you are looking for an aesthetic, light, and easy-to-install roof with convenient options, all at an affordable price, then you should definitely consider steel roof tiles. It is a solution that has been successfully used for years for roofing in millions of homes and other types of buildings.

A wide range of organic coated steels for roofing applications

ArcelorMittal's range of organic coated Granite® steel for roofing offers a combination of a variety of textures and rich colours. For example: Granite® Storm works impeccably in demanding conditions, Granite® Ultramat offers a distinctive texture and matt finish, and Granite® Impression Cloudy is a steel with unique aesthetics including an appearance resembling natural materials such as clay or terracotta. These coatings are extremely durable and are corrosion and UV resistant.

Challenges in the creation of steel roof tiles

It would seem that there is nothing more pleasant when creating a steel roof tile than inventing its shape - a bend that will enhance the colour or reflect light in a unique way. However, not everyone is aware of the technical and material requirements that should or have to be met. Forming complex shapes on curved, convex, and concave surfaces in addition to the required flexibility of the varnish coat are challenging factors in the creation of steel roof tiles.

A partner in testing ArcelorMittal coatings

To ensure even longer use and greater durability of ArcelorMittal steel roofing, we began working with DACHPOLL to test Granite® Ultramat. Additionally, different tile shapes were tested by analysing bend radii. Thanks to our partner, the shape of the steel roof tiles have been adjusted in such a way so as not to exceed the required parameters for the varnish coat and to offer patterns of roof tiles that meet customers’ expectations.

About DACHPOLL

DACHPOLL have 40 years of experience in profiling roofing sheets and is a manufacturer of sheet metal profiling machines. DACHPOLL have also been conducting research in the field of profiling and sheet metal pressing for many years. A qualified team of engineers and specialists are constantly working to develop even better technological solutions in order to improve the quality of devices and products. As a result, their profiling machines are used by leaders in the roofing industry in Poland and abroad. The dynamic development of the company is also evident via the registration of several hundred industrial designs in patent offices in Poland, the European Union, Russia, and Ukraine. The patented industrial designs of DACHPOLL roofing sheets are currently setting trends in the roofing industry, and ArcelorMittal ensures that our Granite® Ultramat coating is being used at its best.

Text: Constructalia
Images: DACHPOLL

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