Weathering Steel Requires An Alternating Cycle Of Wet

Weathering Steel Requires An Alternating Cycle Of Wet

Weathering steel requires an alternating cycle of wet Cor-Ten steel is versatile and can be adapted to any building type and geometry. It can be utilised as an element in an exterior rain screen facade, within an interior panel system with a high performance clear top coat (or raw), as signage,...
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Weathering steel requires an alternating cycle of wet

Cor-Ten steel is versatile and can be adapted to any building type and geometry. It can be utilised as an element in an exterior rain screen facade, within an interior panel system with a high performance clear top coat (or raw), as signage, or in artistic pieces. Weathering steel should not be used in:

• Sheltered locations with damp conditions, constant humidity or persistent fog.

• Permanent contact with water.

• Cor-Ten steel should not be used within 2 (two) kilometres of coastal waters unless airborne chloride levels do not exceed the S2 salinity classification that is Cl 200 mg/m2/day which represents an aggressive atmosphere with high levels of atmospheric corrosion, in accordance with EN ISO9223 – Corrosion of Metals and Alloys.

Natural protection against corrosion.

• Aged weathering steel brings multi-dimensional aspect to facades. The attractive natural appearance is able to fit within urban and natural environments with a patina that evolves over time. The patina can transform multiple times on a daily basis from a state of dry to wet (and back again) and with it brings a sense of depth and wonder. The weathered steel becomes something more than was originally perceived. • Economic advantages: no maintenance cost, no need to re-coat, no coating costs.

• Easily formable and processed allowing to be used for architectural elements of all shapes with minimal constraints.

• Material is 100% recyclable.

• Reduced environmental impacts associated with Volatile Organic Compounds (VOC) emissions from paint coatings and cleaning functions required with painting.

Coloration is hardly guaranteed to be consistent.

• Over the time, the replacement of a façade panel becomes challenging since it is hardly impossible to match the colour of Cor-Ten.

• Thickness of panels necessary depends on the required durability. Cladding panels may be required to account for the expected loss of thickness due to corrosion, and compensate for it by increasing the thickness of the material.

• Surface weathering of bare Cor-Ten steel typically leads to heavy rust staining on nearby surfaces like concrete, white walls, fabrics, etc.

• To maintain the material´s excellent aesthetics, proper design and management of run-off water is required to avoid staining (i.e. using gutters, drainpipes, etc.)

• All joints and profiles must be designed so that rainwater can run off – there must be no retention of water. And all contact with other materials (fixings, electrical conduits, lightings, etc.) must be avoided.

• There are not warranties for weathering steel surfaces. Storage in transit, at yards, or onsite should be minimised. When storage is unavoidable, weathering can be minimised by positioning the material in an exposed area with good drainage.

• In industrial and marine environments the patina does not adhere as well to the steel substrate and may not protect the steel from corrosion.

Weathering steel requires an alternating cycle of wet



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