Double Glazed Units
Failed double glazed units, more often referred to as misted/steamed up double glazed units, are caused by a break in the hot melt sealant which is used to form a seal between the two panes of glass and is applied behind the spacer bar of a double glazed sealed unit.
When there is a break in the hot melt sealant it allows air to enter the double glazed unit. Over a period of time there is a slow build up of excessive moisture within the double glazed sealed unit, as it cannot escape quickly enough,
As the warm and moist air rises, and the longer a double glazed sealed unit has failed it will increase the likelihood of the internal surfaces of the glass being stained due to the persistent condensing within the unit (condensation in double glazing.) At this point on a warm or cooler day the double glazed unit will always appear misted.
The Double Glazed units are easily replaced and we can match any type of lead work, Georgian bars or pattern glass to match existing units.
All Domestic Double Glazed Units Come With A 10 Year Guarantee
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