Welcome to the AECB Forums Materials and products Assessing the remaining life span of existing windows

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    Mark Siddall

    The case here is that there are six UPVC windows in a flat. It is not known when the windows were installed but it is likely to be ~10-12yrs ago. The seals for two glazing units have died (condensation in one and 40mm water at the based of the other.)

    1) Glazing units
    2) Seals
    3) Frames

    What are the things to watch for and how do you determine the life that is left in a UPVC window frame and double glazed window?


    Nick Grant

    40mm of water suggests to me a frame design fault but I know nothing about PVC windows.

    I remember DIY double glazed units in the early days at CAT that were full of water and just crying out for some small fish.

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