Good to have an explanation, this strange phenomenon happen to us this morning as we'll. DH thought the double glazing was faulty and was having a meltdown. I also remember it happening in the spring as we'll. DD rented flat on the other hand was running with inside condensation, no double glazing there though.
The science of all this defeats me - I remember trying to sort out similar problems and the relationship between letting air in and sealing it out is so complex that I just gave up - breathing walls were mentioned.
Crikey; I noticed that at my daughters yesterday on a patio door that had only just been put in and my first thought was that it was faulty in some way. Glad to be reassured [albeit still knowing that my own house, with it's old double glazing needs lots of glass replacing at some point; I'm only going to replace doors and windows that I look out of, though].
How interesting. The new windows in the kitchen were covered in exterior condensation, I was worried, but thanks to this thread, feel reassured.
We had the attic insulated, and cavity wall insulation a few years ago. The house is warmer, but we've more of a condensation problem. I'm told it's inevitable
Yes we've had it happen a couple of times on the patio doors. We though it was between the DG panels the first time and were cross as doors were replaced about 3 yrs ago. Thanks for the explanation
Woke up this morning to what I thought was a very foggy morning , after an hour I realised that the windows were covered in exterior condensation , couldn't see out of any windows or the patio doors. I then remembered this happened a couple of times in the Spring . The double glazing was new last year so I was a bit worried so I googled it and apparently its all to do with physics and the dew point and temp of the glass very scientific but anyway its a good thing and shows that the e-glass is doing its job and keeping the heat in the house... so that's alright then