Damp Proofing

Normal moisture in Victorian Terraced House

Anonymous user 28/02/2024 - 3.38 PM

Hi, We are in the process of potentially buying a victorian terraced house (which I believe was built between 1876 and 1890, as this is when it appears on archived OS maps). Our surveyor has highlighted a number of walls that, using his WME meter, read in the low 20% levels, which the surveyor has indicated are higher than the "maximum allowable" of 20%. My understanding is that victorian construction typcially reads highly using this equipment, and that readings of these levels are of little concern. Is this a fair interpretation of these readings? One internal wall in the building had a reading of 100% which I am more concerned about. The area in question is an internal, party wall, is under the stairs, and is near a WC. I am revisiting the property in the next few days to see this for myself and see if there is anything that might indicate the cause of this. Does anyone have any advice as to what I should look out for please? And, what kind of tradesman should I contact to investigate this matter further? A damp expert? A plumber? Someone else? Any advice would be highly appreciated, Thanks! Alex