• +44 125 3858 333
  • sales@n-e-g.co.uk

    Northern Express Glass Ltd

    Toughened Glass & Sealed Unit Manufacturer


    As an IGU is sealed, the space between the glass is filled with dehydrated air in order to improve the insulation properties of the unit. Whilst air is considered a good insulator there are superior options available.

    For optimum thermal insulation, Northern Express Glass Ltd use argon gas to fill the cavity of their insulated glass units. Argon gas is a colourless, odourless and tasteless gas that provides optimum thermal insulation whilst being both non toxic and inert. The use of argon gas in the units allows them to achieve a higher energy rating compared to units using dehydrated air.

    All IGU’s manufactured by Northern Express Glass Ltd hold EN1279 Part 3 Pass Certificates, which means that they comply with the legal requirements for the testing of rates at which gas leaks from a unit.

    Over time the concentration of gas present within an IGU decreases as it escapes, once the concentration falls below 80% the insulation properties are lost. Even after 20 years, a unit manufactured by Northern Express Glass Ltd will still retain 80% of the argon gas it was filled with.

    Contact Us

    Northern Express Glass Ltd

    Enterprise Way



    FY7 8RY

    Tel: 01253 858333

    Fax: 01253 858444

    Email: sales@n-e-g.co.uk