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Double Glazing

The double glazing industry is facing changes with revised legislation on energy efficiency due in 2010 to meet the UK government policy on reducing carbon emissions. 

  • From 1st October 2010, revised minimum energy efficiency targets will apply to new and replacement windows in England, Wales and Scotland. In Northern Ireland a consultation programme is expected to begin shortly.
  • Replacement windows in England & Wales will have to meet a centrepane "U" value of 1.6W/m2K equivalent to WER band C from 2010, where existing 2006 standards specify a minimum WER band E or centrepane U value of 1.2 W/m2K

There are five key factors involved in making energy efficient windows:

  • glass type
  • cavity filling gas
  • cavity size
  • frame design and material
  • triple or double glazing

The thermal conductivities of argon and krypton are much lower than air, meaning they are much more efficient insulators and thus they are both ideal for keeping U-values low in sealed double glazed units, either in combination with each other or with air.

BOC can provide argon, krypton and xenon gases for sealed unit manufacture in a range of cylinder sizes to suit customer preference - and as liquid for larger customers where required. As these are inert gases with low conductivity, they can be used to uprate the thermal performance of sealed units without adversely reacting with the high tech desiccants and sealants used in today's state-of-the-art glazing units.

For enquiries regarding argon supply, gas or liquid call 0800 111 333 for further information.

Bespoke window applications requiring a higher WER rating may need to use krypton or xenon gases, these can be sourced in cylinders either as pure gases or as gas mixtures.

Our specialists are available to discuss your requirements on 0800 02 0800.

For more information about double glazing email usFor more information about double glazing email us


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