What is a coastal environment? The Metal Cladding and Roofing Manufacturers Association (MCRMA) define a “coastal environment” as the area extending to a minimum of 1km from the shore or edge of tidal water. This may extend significantly further (up to 5km) depending on the topography and prevailing wind. What does that mean for my… more
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Metal roofing and cladding sheets can be protected indefinitely if correctly maintained, but advanced coating failure often spells expensive replacement of roof sheets. This article is intended to help you determine whether a roof or wall sheet is suitable for application of a refurbishment coating to lengthen the life of the structure, rather than full… more
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What is a Rust Inhibiting primer and how does it work? Rust inhibiting primers help to slow the future formation of rust if a corrosion resistant coating system is damaged. The term ‘rust inhibiting’ is normally used to describe primers that contain Zinc or Zinc Phosphate. A Zinc Rich primer forms a sacrificial layer on… more
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Concrete carbonation causes embedded steel reinforcements to corrode, with the resulting expansion cracking and weakening the concrete. It commences as soon as concrete is exposed to the atmosphere, and can advance at a rate of 1mm to 5mm per year, dependent on the concrete’s porosity and permeability. Carbonation is the most common cause of reinforcement… more
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