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Double Glazing Knowledge

Secondary Glazing

Secondary glazing is extremely useful if the primary windows are to remain, they also offer excellent sound reduction especially if fitted 200mm (8” or so) away from the prime window. On the down side they can bee seen from outside and each pane can be very heavy to lift out for cleaning.


Tip, Consider installing sound deadening acoustic panels inside the cavity and fitting a different thickness of glass in the secondary, both will reduce noise further