UPVC Window Repairs Misted Double Glazing of condensation within the cavity of a
hermetically sealed double glazed unit or Insulating Glass Unit (IGU) denotes a failure of the seal. Where the double glazing is achieved by the installation of secondary glazing, condensation on the cavity surface of the outer glass generally (but not invariably) indicates leakage from moist air from the room into the cavity. However, the reader should note that it is not possible to hermetically seal secondary windows; therefore some migration of air from the room into the cavity is to be expected. |
Condensation can occur occasionally on
the cavity surface of the inner glass when the sun is shining on the window. This means that something in the air space itself, such as an unsealed wooden separator or desiccant, contains moisture. It should be noted, however, that this source can also be responsible for condensation on the cavity surface of the outer glass. Get a Quote For Your UPVC Window Repairs Contact Us.
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