Damp Proofing

Damp problem - mould on three outside walls of first floor flat

Anonymous user 28/02/2024 - 3.06 PM

We live in a first floor flat and have recently noticed mould on three of the outside walls. We called the landlord who sent a builder who has said it is condensation even though the walls and windows are showing no sign of any moisture. There are a number of roof tiles missing and various areas of the brickwork require re-pointing and the render is cracked in a number of places. Could the cause be from penetrating damp and would a humidity reading from a meter confirm that it is not caused by condensation