I am installing a conservatory and have been offered 28mm argon filled window units fitted with Novapanes "Nova Neutral Plus 1.1" glass which the conservatory supplier claims to be a superior unit to K glass. The Novapane
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data sheet claims a thermal transmittance coefficient, U value, of 1.1 W/sqmK for the argon sealed unit.Does anyone have any experience of this glass or the glazing units and can you advise if it is superior (or a least euivalent) to K glass. Thanks
Dave