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Supporting CE-Marking Obligations of Our Customers: The Role of the Galvanizer

 

CE marking simply demonstrates compliance with the appropriate manufacturing standard for a product. The harmonised standard covering fabricated structural steelwork in EN 1090-1 ’Execution of Steel Structures and Aluminium Structures’.

 

Hot Dip Galvanizing and EN 1090

EN 1090-1 and EN 1090-2 include specific requirements, related to surface treatment and durability that have consequences for the specification and use of hot dip galvanizing as a sub-contract activity.

 

However, a sub-contractor, without self providing products on the market under his name or trademark, can not be certified to EN 1090-1 by a notified body. (Ref. Boverket, Sweden). EGGA, European General Galvanizers Association, has published the guidance document “Hot dip galvanizing to EN ISO 1461 and CE marking of structural steelwork to EN 1090", which can be ordered from Nordic Galvanizers by mail: info@nordicgalvanizers.com

 

Link to information about CE-marking from Boverket:: CE-märkning av bygpprodukter

 

Norway's most environmentally friendly building?

 

Troll in Stavanger is the first building in what will be the new «Energy Quarter» at Hinna Park and is due for completion in October 2013. The building consists of two towers, one which stands five floors high and the other at eight floors. Both sections are connected by a middle section which extends over the lower three floors. Parking, bicycle neighboring building.

Troll-building will be one of the first office buildings in Norway that is built as both passive and Energy Class A. To qualify as passive requires support from government. Hinna Park wants to build passive approaching a zero energy building.

A coduktermpact building structure, excellent U-values, low infiltration facades, balanced ventilation with rotary heat exchanger, heat pumps based on carbon combined with energy buffer in the parking garage, and a solar collector on the roof, leading to an estimated total delivered energy of 59.8 kW / m². This corresponds to annual CO ² emissions of 22.5 kg / m².
The façade of the building consists of galvanized plates with length 4 500 mm and width around 300-400 mm. The thickness of the steel plate is 1,6 mm and the total volume of the façade is 3 300 m². Galvanized steel was chosen since it was most environmental friendly from a life cycle perspective in comparison to alternative materials.

 

Zinc is highlighted as sustainable by architecture students in collaboration with Stockholm City

 

“Into the loop - exploring the lifecycle of materials” is an exhibition made by students from Sustainable Studio at KTH School of Architecture. The exhibition is performed in a creative collaboration with Stockholm City and other stakeholders involved in the development of The Royal Seaport.

 

When finished, Stockholm Royal Seaport plans to hold 10.000 new apartments and 30.000 new work places. In addition to housing and offices, the area will also include urban parks, an art gallery and a harbor for cruise ships. As the City of Stockholm is the owner of the land, high demands are being put on the project to be on the front lines of sustainability. The project is part of Stockholm´s plans to densify the city as well as branding Stockholm as a leading city in green urban planning.

 

As for many other materials, the environmental properties of zinc sometimes is questioned, which the students were aware of.  Thus, after some research and contact with researchers at KTH and other professionals with knowledge about the material, the students found out that zinc actually is a very appropriate material in terms of sustainability, when designed according to a cradle to cradle principle:

  • Zinc is a natural product with a long life that after its use can be recycled to 100 % without no quality loss.
  • Recycling of zinc requires only 5% of the energy consumed during the original manufacture of the material.
  • Zinc has self-healing properties and is used to protect other material from corrosion.
  • When designed, produced and assembled according to cradle to cradle lifecycle strategies, it can help humans live in tune with nature. Zink can perform as a “cradle to cradle” material that has a lifespan of 100-200 years, even longer”