Fitterd new windows this year - double-glazed uPVC, and notice now with the cooler damp mornings that condensation is forming on the outside of them overnight, something which never happened with the old alu d/g units.
I'm assuming that's a good sign, i.e. that there is no heat loss, or at least not enough to prevent condensation from forming outside. Am I right?
I'm assuming that's a good sign, i.e. that there is no heat loss, or at least not enough to prevent condensation from forming outside. Am I right?