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  • Double glazed windows consist of two sheets of glass, with a gap between them to create an insulating barrier. The space between the glass is often separated by a layer of air, or a heavier inert gas such as Argon, Kyrpton or Xenon. Double glazed windows better insulate your property and this can result in fewer draughts (potentially cheaper heating bills) and also less noise being transmitted through. Double glazed glass is also more difficult to break than single glazing, heightening security further.

    View our range of rooflights and roof windows available to purchase online here.