I am working on a wall which may have rising damp, it appears to be so as it has been treated twice before bthe treatment failed twice within 2-3 years. nowhere else is damp in the house.
The wall is in a one storey extension at the side of the kitchen. the sign of damp is on the internal wall only but not on the external one. what tests can I do to determine whether this is really rising damp rather than condensation (kitchen is hot, extended area is always cold and the outside wall is north-northwest facing.
Also, what steps can i make eliminate damp (if it is that) or condensation. Would vents and heating help? - there is neither at the moment.
Thanks M