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Why stainless steel is the ideal choice for roofing and cladding

Affording freedom of form and appearance, stainless steel roofing blends into all environments and is suited to all styles of architecture, both new and renovation projects. Long lasting, easy to maintain and recyclable, it is also the sustainable material of choice.

The advantages of stainless steel for roofing and cladding…

  • Lighter envelope, thanks to high mechanical properties that permit a reduction of thickness.
  • Compatible with all types of support: metal, all types of wood, etc.
  • Possible association with construction systems giving thermal properties and/or acoustics.
  • Response to national and European thermal regulatory requirements.
  • More cost-effective than traditional products and techniques.
  • All types of claddings are possible, both new and refurbished.
  • In refurbishment, the stainless steel envelope transforms and modernises the building while respecting thermal regulations and omitting thermal bridges.
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Stainless steel, a combination of performance and aesthetics for your projects

Design

Our wide range of grades and surface finishes will let you choose stainless steel that will provide your building with continuity and sustainability thanks to corrosion resistance that is adapted to any given atmospheric environment. Furthermore, our various stainless steels have excellent physical properties even at very low temperatures. On one hand, this allows you to use thinner pieces, providing for a lower weight per m2, and on the other hand, you can use very long pieces in single sections.

Our products are transformed and easily installed using traditional tools and machinery.

Economic performance

Designing and building with stainless steel contributes to an excellent overall cost, that is a positive relationship between the final cost and the lifetime of the work. This comes as a result of the exceptional durability of stainless steel buildings, and the almost non-existent, easy maintenance.

The price stability, especially with our ferritic grades, as well as the cost of transformation and installation is comparable to other traditionally used metals, giving stainless steel its competitiveness.

Aesthetics

Stainless steel offers creative freedom and architectural design which is rarely matched. Our impressive range of thicknesses and wide range of surface finishes – from the more dull to the colourful to the most brilliant.

Stainless steel allows for the creation of complex shapes and pairs well with other materials such as glass, wood, stone, etc.

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The advantages of stainless steel in Roofing

Environment and recyclability

  • Stainless steel is a « green material » par excellence and is infinitely recyclable and recycled. Within the construction sector, its actual recovery rate is close to 100%.
  • It is unchangeable and totally inert with regard to the environment : in contact with elements such as water, it does not release compounds which could modify the composition.
  • Stainless steel’s longevity fulfils the requirements of sustainable construction.

Economic performance

  • Cost levels of stainless steel transformation are comparable with other metals traditionally used.
  • The cost of stainless steel roofing enables an excellent quality versus price ratio to be achieved in construction.
  • Choosing stainless steel offers a long-term guarantee.

Durability

  • Stainless steel is corrosion resistant, thanks to its passive layer, which allows its use in various atmospheric environments, even the most severe.
  • Stainless steel has a high strength resistance and an excellent resistance to thermal shock.
  • Stainless steel is ranked A2s1d0 for fire resistance with no toxic fume emissivity.
  • No embrittlement of stainless steel in very cold weather.

Implementation

  • On site machinery used for implementation of stainless steel is the same as for other materials.
  • Stainless steel solders easily.
  • Stainless steel can be worked in winter temperatures, which allows a longer laying period.

Design

  • Stainless steel is suited to all styles of roofing (batten rolls, standing seams, self-supporting trays), both new build and renovation projects.
  • It allows architectural creation, design and the realisation of complex shapes.
  • It combines easily with other materials (glass, wood, concrete…).
  • A low thermal expansion coefficient allows the manufacture of continuous lengths of up to 20m in a single run.

 

 

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UGINOX Top Manufacturing Process

UGINOX Top is manufactured according to the typical stainless steel manufacturing process up to the rolling operation where the patterning process takes place.

  • This engraving operation is conducted with specially prepared cylinders on a matt annealed base (2D).
  • This engraving technique used enables both a uniform and reproductible finish for the different grades and dimensions.
  • This production method is certified to the standards ISO 9001 and ISO 14001.


The engraving is conducted during the rolling operation.


The pickling and annealing stage restores the ductility of the metal and optimises the matt finish.

A guide to the choice of grade relative to atmospheric exposure

The choice of stainless steel grade for a roofing application must take into account the environment in which the material will be used.

Our dimensional range


The UGINOX Top finish is available in coils, slit coils and sheets.
Their mechanical properties comply with norms EN 10088-2, EN 10088-4 and ASTM A 240.

Key strengths

  • This surface finish is characterised from its installation by a permanent and durable matt finish.
  • Good corrosion resistance.
  • It blends into all types of environment, both rural and urban, traditional or modern, and is suited toall styles of architecture.

Applications

  • Roofing: fully supported roofs, self-supporting roofs, batten roll roofs.
  • Facade: cassette, panels, shingles
  • Cladding : profiles.
  • Accessories: gutters, downpipes.

Construction products manufactured comply with the CE standard.

 

 

 

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Famous Buildings Constructed Using Stainless Steel

Stainless steel is an ideal construction material in many ways, strong and resistant to corrosion. It has been used as a building material since the 1920s, which attests to its longevity and its enduring popularity. Some of the world’s most recognisable buildings (and other landmarks such as bridges, statues and monuments) have used stainless steel in their construction.

The first stainless steel building in the world was the Chrysler Building, completed in 1930 and at that time, the tallest building in the world. It still holds the title for the world’s tallest brick building with a steel framework. It is, in fact, the stainless steel framework that forms the load-bearing parts of the Chrysler Building, not the external brickwork. The decorative external steel features are formed from an alloy called Nirosta, a version of stainless steel that has a reputation for remaining permanently shiny, and this is well-deserved, as the structure has only been industrially cleaned twice. As the use of stainless steel in skyscrapers was pioneering at the time, it was subject to tests every five years, until they were deemed unnecessary in 1960, due to lack of deterioration.


This image is licensed under the Creative Commons

A more modern skyscraper construction that incorporates stainless steel are the Petronas Twin Towers in Kuala Lumpur, Malaysia. However, in contrast to the Art Deco style of the Chrysler building, the steel here is used to form the exterior facade, rather than the load-bearing framework, which is instead made from high strength reinforced concrete. These towers have also held the title of World’s Tallest Building, from 1998 to 2004. In 1999, the world record for BASE jumping was set from the Towers by Felix Baumgartner, who would later gain recognition for his skydive “from the edge of space”.


This image is licensed under the Creative Commons

Stainless steel is not only suitable for use in skyscrapers, but also for a wide range of other construction purposes. The Walt Disney Concert Hall in Los Angeles, California, is only a fraction of the height of the previously mentioned towers, but still uses stainless steel to produce its highly recognisable sail-like exterior shape. Resistant to corrosion and other pollution damage, the stainless steel is highly suited to the busy, urban location of this building, and has the advantage of requiring little maintenance. In contrast to the shiny alloy on the Chrysler Building’s exterior, Frank Gehry’s design for the Walt Disney Concert Hall has a matte finish, although still retains its reflective quality.


This image is licensed under the Creative Commons

Drawing comparisons to the Walt Disney Hall, the unpredictable shapes of the Cleveland Clinic’s Lou Ruvo Center for Brain Health building in Las Vegas are another Frank Gehry design. Stainless steel sheets form the exterior structure again here, although this required each connection between them to be individually designed, manufactured, and tracked with barcodes to ensure the placement of each unique piece was correct. Any errors in connecting the pieces would have required the entire building to be taken down and started again.


This image is licensed under the Creative Commons

The Art Gallery of Alberta, in Canada, was originally designed in 1968, using a style known as Brutalist. However, as the collection in this public art gallery grew to contain thousands of works, a larger building was required, and it would undergo a complete redesign and rebuild in 2007. Parts of the original design were used, in combination with an unusual shape formed from both glass and stainless steel. The steel has both functional and decorative purposes.


This image is licensed under the Creative Commons

There are many different grades of stainless steel, each suitable for a variety of purposes in construction. However, one thing that they all have in common is that they are all completely recyclable, so should any stainless steel building undergo demolition and rebuilding, the steel itself is not wasted, and could even be reused on the same site.

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8 Famous Stainless Steel Monuments and Sculptures

We’ve picked 8 Famous Stainless Steel Monuments and Sculptures from around the world…

Unisphere
The Unisphere is a spherical stainless steel representation of the Earth, located in Flushing Meadows–Corona Park in the borough of Queens, New York City. The sphere, which measures 140 feet (43 m) high and 120 feet (37 m) in diameter, was commissioned as part of the 1964 New York World’s Fair. The Unisphere is one of the borough’s most iconic and enduring symbols.

“Queens World Fair Unisphere” by Ian Irving is licensed under CC BY 2.0

Gateway Arch
The Gateway Arch is a 630-foot (192 m) monument in St. Louis, Missouri, United States. Clad in stainless steel and built in the form of a weighted catenary arch, it is the world’s tallest arch, the tallest man-made monument in the Western Hemisphere, and Missouri’s tallest accessible building. Built as a monument to the westward expansion of the United States, and officially dedicated to “the American people,” it is the centerpiece of the Gateway Arch National Park and has become an internationally recognized symbol of St. Louis, as well as a popular tourist destination.

“Gateway Arch, St. Louis, MO” by Nicolas Henderson is licensed under CC BY 2.0

United States Air Force Memorial
Located in Arlington, VA, the United States Air Force Memorial honors the service and heritage of the men and women of the United States Air Force. The three stainless steel spires reach a height of 402 feet above sea-level. It is adjacent to the Arlington National Cemetery and overlooks the Pentagon.

“The United States Air Force (USAF) Memorial Arlington (VA) May 2015” by Ron Cogswell is licensed under CC BY 2.0

The Atomium
The Atomium is a landmark building in Brussels, originally constructed for the 1958 Brussels World’s Fair (Expo 58). It is located on the Heysel Plateau, where the exhibition took place. It is now a museum. Designed by the engineer André Waterkeyn and architects André and Jean Polak, it stands 102 m (335 ft) tall. Its nine 18 m (60 ft) diameter stainless steel clad spheres are connected, so that the whole forms the shape of a unit cell of an iron crystal magnified 165 billion times. Tubes of 3 m (10 ft) diameter connect the spheres along the 12 edges of the cube and all eight vertices to the center. They enclose stairs, escalators and a lift (in the central, vertical tube) to allow access to the five habitable spheres, which contain exhibit halls and other public spaces. The top sphere includes a restaurant which has a panoramic view of Brussels.

“The Atomium” by O Palsson is licensed under CC BY 2.0

Cloud Gate
Cloud Gate is a public sculpture by Indian-born British artist Sir Anish Kapoor, that is the centerpiece of AT&T Plaza at Millennium Park in the Loop community area of Chicago, Illinois. The sculpture and AT&T Plaza are located on top of Park Grill, between the Chase Promenade and McCormick Tribune Plaza & Ice Rink. Constructed between 2004 and 2006, the sculpture is nicknamed The Bean because of its shape. Made up of 168 stainless steel plates welded together, its highly polished exterior has no visible seams. It measures 33 by 66 by 42 feet (10 by 20 by 13 m), and weighs 110 short tons (100 t; 98 long tons).

“Cloud Gate, AT&T Plaza, Millenium Park, Chicago” by Naotake Murayama is licensed under CC BY 2.0

Sibelius Monument (Helsinki)
The Sibelius Monument (Finnish: Sibelius-monumentti; Swedish: Sibeliusmonumentet) by Eila Hiltunen is dedicated to the Finnish composer Jean Sibelius (1865–1957). The monument is located at the Sibelius Park (Finnish: Sibeliuspuisto; Swedish: Sibeliusparken) in the district of Töölö in Helsinki, the capital city of Finland.


“Sibelius Monument, Helsinki” by jelm6 is licensed under CC BY 2.0

The Kelpies
The Kelpies are 30-metre-high horse-head sculptures featuring kelpies, standing next to a new extension to the Forth and Clyde Canal, and near River Carron, in The Helix, a new parkland project built to connect 16 communities in the Falkirk Council Area, Scotland. The sculptures were designed by sculptor Andy Scott and were completed in October 2013. The sculptures form a gateway at the eastern entrance to the Forth and Clyde canal, and the new canal extension built as part of The Helix land transformation project. The Kelpies are a monument to horse powered heritage across Scotland.

“The Kelpies” by amateur photography by michel is licensed under CC BY 2.0

The Steel Man
The Steel Man will be a 32 metre high sculpture and Interpretation Hub located in Rotherham (J34,M1), forming a landmark gateway to Yorkshire and the Sheffield City Region. The project began with a simple idea to create a landmark artwork and visitor centre that would act as a beacon for the Yorkshire region and a catalyst for change: The 32 metre high stainless steel sculpture and Hub will be built in Rotherham, a town steeped in the history of steel production for generations. The Steel Man will honour the people and places that forged this heritage of Steel and it will highlight the new technologies and specialised manufacturing that is helping to generate the northern powerhouse. Schools, Universities and other educational facilities have embraced the project which will stand as a totemic symbol of British manufacturing and innovation.

“The Steel Man” by Sheffieldicon is licensed under CC BY-SA 2.0

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The Benefits of Stainless Steel in Architecture


Image Via Pixabay  – Creative Commons

Stainless steel has been used as a construction material since the 1920s, so it is certainly not a new product. In fact, its rising popularity in recent years is testament to how suitable it is for use in the building industry, with uses ranging from roofing and safety railings to architectural cladding. It has also been shown, due to its use over so many years, to have a long lifespan, which is an important consideration in construction.

There are many benefits to using stainless steel in architectural designs. Firstly, it is strong, meaning that it is ideal for use as structural support, even when placed under high tensile stress. It is, therefore, now a popular choice for bridges, particularly for the areas of the structure that will be exposed to potentially harsh weather and environmental conditions. The first stainless steel bridge that was designed for vehicle use was the Cala Galdana Bridge, on the Spanish island of Menorca. It is also a popular choice for pedestrian bridges around the world. London’s Millennium Bridge, the first new pedestrian bridge to be built over the River Thames in over 100 years, is partially constructed from stainless steel. It was also the material of choice for the renovated underpass in Sartrouville, near Paris, France, which was completed in 2011. Being underneath the railway lines, it needed to be sufficiently strong to prevent collapse under the weight of the trains. Both the cladding panels and the rectangular support beams are constructed from stainless steel.

In addition to its high strength, stainless steel is also highly resistant to corrosion. This means that the structures are low maintenance, and unlikely to be damaged by exposure to rain or salt. This is especially important in coastal regions, where iron or steel that is not stainless is prone to rusting. The use of stainless steel instead removes the need for regular painting to protect the metal. The Helix Bridge in Singapore, which would be heavily exposed to salt water from the sea, is stainless steel in order to resist corrosion. Exhaust gases can also contain corrosive chemicals, especially when they combine with water vapour in the air. This was also one of the reasons for choosing stainless steel in the Sartrouville underpass.

There are many different types of stainless steel. Adding small quantities of a metal called molybdenum increases the resistance of the steel to corrosion, particularly to chlorides (usually in the form of sodium chloride, from salt water). This is beneficial in coastal areas and in large cities. It has been used for the exterior cladding of One Canary Wharf, London, most likely due to its corrosion-resistant properties.

Another advantage of stainless steel is its versatility. It can be made into almost any shape, giving it an exceptionally wide range of uses within the building and construction industry. It is not simply restricted to structural supports or flat sheets of exterior cladding, but can be used to create more unusual shapes instead. The architect Zaha Hadid made use of this feature in numerous designs, such as the University of Oxford’s Investcorp Building, which has fluid curves that have been used to connect two existing Victorian buildings. Frank Gehry also used this to his advantage when designing the Walt Disney Concert Hall in Los Angeles. Stainless steel’s ability to resist corrosion from air pollution was also undoubtedly a consideration here.

Making use of all of these advantages possessed by stainless steel is the Thames Barrier. Spanning the 520m width of the River Thames, the ten stainless steel piers make up one of the city’s most distinctive landmarks. High strength combined with a low need for maintenance is essential here, as its purpose is to prevent flooding in the city. It is constantly exposed to both air pollution and water, yet the stainless steel making up the structure has prevented any damage from occurring.

 

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NCTS Provides Stainless Steel Roofing Courses

National Construction Training Services (NCTS) provide Stainless Steel courses that are mapped to the National Occupational Standard and the Vocation Qualification. Their objective is to support those operatives who have neither a full competency nor an official roofing qualification, providing the opportunity to become qualified and helping them to convert their green CSCS card to the Blue Skilled Worker CSCS card. Successful completion of the BCP provides the attendees with a certificate of competency in the knowledge and understanding of product systems, health, safety and welfare at a recognised level in the industry.

The BCP is also aimed towards individuals with higher level CSCS cards who are looking to gain experience of using other products/systems, or those wishing to up-skill from one roofing discipline to another. Endorsed by CITB, NFRC, Competent Roofer, Roofing Industry Alliance and CSCS, following successful completion of their CSCS health and safety test, certificated BCP operatives are able to apply for a 3 years Red Experienced Worker CSCS card which will put them on the path to becoming competent and qualified. 

For further information visit the National Construction Training Services website at www.ncts.org.uk 

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What is Uginox Patina K44?

UGINOX Patina K44 is a bistabilized ferritic stainless steel with an electro-tinned coating on both sides. This ferritic stainless steel is K44 and belongs to the KARA range: it contains 18% chromium and molybdenum and is stabilized with titanium and niobium.

UGINOX Patina K44 weathers over time, acquiring a matt finish through natural patination giving a traditional rustic final appearance. UGINOX Patina K44 has the benefit of a high corrosion resistance, suitable for use in aggressive atmospheres.

Think Stabilised Stainless Steel !

Chromium is a key chemical compound, which basically gives stainless steel its corrosion resistance property. Indeed a chromium oxide is created on the material surface in contact with air and water. This layer repairs itself and therefore protects the surface.

Molybdenum reinforces its corrosion resistance.

Key strengths

  • Workable at low temperatures, including in mountainous regions.
  • Ease of soldering
  • Low thermal expansion coefficient: enables the use of long sheet lengths in single sections.
  • High corrosion resistance, suitable for use in aggressive atmospheres.
  • Nickel-free grade offering price stability over time.
  • 100% recyclable.

Applications

  • Standing seam roofing.
  • Self supporting roofing.
  • Cleated seam roofing.
  • Suitable for cold
  • Cold roof or warm roofs.
  • Gutters.
  • Roofing accessories.

 

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The History Of Stainless Steel

Stainless steel can be found everywhere, from the cutlery in our kitchens to almost every sector of the manufacturing industry. In fact when you consider its myriad uses its hard to imagine life without it, so it comes as a surprise to discover that it was only invented a little over one hundred years ago.
Celebrating its centenary in 2013, the invention of true stainless steel is widely attributed to Harry Brearley of Sheffield, UK. However, there are also many rival claims from all over the world to Brearley’s title, and in the preceding years, there were many previous attempts to create stainless steel, some of which came very close indeed.As far back as 1820, scientists Stoddard and Farraday discovered iron-chromium alloys to be more resistant to damage caused by acids, and in 1872 Woods and Clarke patented an alloy which contained 30 – 35% Chromium and 2% Tungsten. Later, in 1875 French scientist Brustlein made a major breakthrough with the discovery that to successfully make stainless steel, the carbon content should be below 0.15%. Some would argue that these discoveries marked the beginning of the development of stainless steel. A process involving efforts by many scientists that would continue for twenty years until the next major breakthrough.

In 1895, Hans Goldschmidt invented an aluminothermic reduction process that allowed carbon-free chromium to be produced and opened the door for the next stage in the development of stainless steel. French scientist Leon Guillet also played a part, although possibly unknowingly as he worked on studies analysing iron, nickel and chrome alloys analysing their chemical composition but failing to note the potential for corrosion resistance. By 1909 work was going on on both sides of the channel, with Giesen in England and Portevin in France both studying what would now be regarded as 430 stainless steel.

In 1911, the final major pre Harry Brearley breakthrough was made when German scientists Monnartz and Borchers discovered that there was a connection between chromium content and corrosion resistance.

A year after this discovery, in 1912 Harry Brearley was given the task of finding an erosion resistant steel by a firearms manufacturer. During this process he experimented with different alloys, eventually discovering that some had not rusted to the extent of their counterparts. Brearly later went into business with an old school friend, Ernest Stuart who coined the name “stainless steel” after testing the material with a vinegar solution.

But what of the other contenders to the title? These include German Company the Krupp Iron Works who in 1908 produced a chrome and nickel steel hull for a yacht named The Half Moon. In the USA the title was claimed by Elwood Haynes who claimed he discovered a rustproof razor in 1911 and two scientists Becket and Dantzen who worked with ferritic stainless steels between 1911 and 1914.

Over the following 100 years, approximately 100 grades of stainless steel went on to be discovered.