Our house (which was a new build) is fitted with Wooden Double Glazing Windows. The house is just over 5 years old. The upstairs windows in particular have started to get condensation on them and the sealant around the window panes has now got mould on them as well.
What can I do to stop the condensation ??? Or is it to do with the fact that they are wooden frames ??
Many Thanks
Vanessa