I live in a block of flats with neighbours on 5 sides and only one side open to the outside.
I understand that conduction is likely to be the main way I lose or gain heat to or from the neighbours on my floor (and this will be based on the temperature differential between our flats), but are there other factors to take into account with my neighbours above and below me?
I would guess that I have to take into account not only the average temperature differential between our flats, but also the temperature differential within our rooms, as the real differential between my flat and my neighbour above me is the difference between the temperature at the ceiling of my flat and the floor of my neighbour above.
Similarly, I would expect that I would be much less likely to lose heat into the flat below as it would be dependent on the difference between the temperature at the ceiling of my neighbour below and the floor of my flat.
As such, how would I work out whether it was worthwhile adding wall, ceiling insulation and possibly even under carper insulation, to minimise the heat losses to my neighnours.