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  • The cavity is the width between two panes which can be filled with Kyrpton to improve the U-value rating of a double or triple glazed rooflight. A rooflights energy efficiency can be increased by the use of inert gas, such as Kyrpton, as this has a lower thermal conductivity than air and also give it a lower acoustic conductivity, improving its sound insulation. Whilst, Kyrpton and Xenon are more energy efficient than Argon, they are often not used in rooflights as they are more expensive.

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