Two areas of damp in the kitchen were both sitting either side of the kitchen door. One of the main reasons for this were some cold air draughts coming in through holes in the kitchen wall. How can there be holes in the kitchen wall? They were hidden behind the fridge and washing machine. The first was a large one, left in place from a previous tumble drier and half-heartedly filled with rags by a previous owner. The others were left over from the current and previous waste pipes of the kitchen sink.
Having read a number of publications and white papers on the subject of restoration and conservation of traditionally constructed buildings I understood the significance of vapour permeable, traditional building materials such as lime mortars and lime plasters.
The home I live in needs to change: warmer, less damp, increase comfort, create an open plan room for more family-focused lives, improve aesthetic quality to the rooms and spaces, and a short term solution to create separate bedrooms for the kids.
An interesting thing that I was made aware of recently, is that the natural gas piped into our homes produces a surprising amount of water vapour when it combusts.
With modern boilers, this is not a problem since they are well sealed and vented via flues to the outside. However, where there are gas fires, gas hobs or gas ovens, these might contribute to the total amount of moisture in the house, thus raising the humidity & potential for condensation.