Yes, though downstairs is lived in and loft has just had insulation put in. Thinking warm air from both and moisture has come in from ventilation outside.
Hi would appreciate any advice you can give regarding this problem. Empty upstairs flat has damp patches on external wall.
1920s/30s 2storey house converted to 2 flats.
August had repointed external brickwork and refelted roof. Had loft insulation put in.
Now damp patches have appeared on...