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Specialist commercial and residential glazing and re-glazing

Has any of your portfolio suffered from failed or cracked double glazed units?

Since 1989 the team at Osprey has carried out numerous re-glazing works for large commercial and specialist residential clients. Over the past 20 years, these works have mostly been undertaken as a principal contractor, procuring all of the associated trades and responsibilities to complete the project as a stand alone contract.

We work closely with many of the industry’s leading consultants and glazing manufacturers, including Pilkington’s, Saint Gobain and Guardian, who offer a vast range of solar control and security combinations. Contracts range from a few hundred m² to several thousand m², and we pride ourselves on the quality and finish maintained throughout the project.

What is Nickel Sulphide? (NiS)

Nickel Sulphide (NiS) is a contaminant that can be found in glass and can lead to spontaneous glass failure. Generally only tempered (toughened) glass will contain this as a potential risk.

A Nickel Sulphide inclusion in a glass structure can change state at an unspecified point, causing total failure of a pane. Considerations for owners and tenants of a building that may contain Nickel Sulphide:

  • Public safety
  • Workplace Health and Safety
  • Tenant issues
  • Media interest
  • Insurance and litigation
  • Building value

Protecting public safety

Alongside a contractor’s responsibility to ensure Safe Working Practices on site, building owners have a duty of care too. In this case, the building’s new owners decided the percentage of failures was unacceptably high and all of the double-glazed units and spandrel panels (approximately 2,800 units) were changed to ensure the buildings could continue as offices. Nickel Sulphide considerations for building owners and tenants include:

  • Public safety
  • Workplace Health and Safety
  • Tenant issues
  • Media interest
  • Insurance and litigation
  • Building value. 

For more information and expert advice about Glazing and Reglazing, and for any concerns about Nickel Sulphide, please get in touch.

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