Damp Proofing

Higher level of damp in a inner side of bedroom external wall

Anonymous user 23/02/2024 - 3.15 PM

We have recently had a survey to our house. The report indicates that the inner side of a bedroom external wall (facing garden) showing a very high level of dampness. Most part of the wall is dry except this small part at high level approx 1m below the ceiling level. The bedroom is at the first floor level. It is a 1930s mock-Tudor style semi-detached with solid brick wall. It suggests it may due to the failure of the external render allowing the damp penetrate from outside. therefore removal and re rendering of external wall is recommended. We can't see or feel any dampness at the inner side of this external wall but the damp meter is showing red. We have been living in this house for 10 years and we decorated the room 2-3 years ago. We didn't notice any sign of damp or mould. It is necessary to rerender the wall? Could it be due to condensation? or problem at roof level? Will it causes any long term damage? Your advice is appreciated. Regards