New here so hello to those who read this post.
My mother owns a bungalow (19yrs) that was built in mid 1960's, an extension was built on the rear about 21yrs ago b4 she bought it. Is built in a well known shale area - was tested when she was in process of buying and found to be ok. All floors are concrete.
The problem:- The ext floor has developed damp around the the edges near to the walls, along both the new built walls and the existing wall of the bungalow. Although it is no damp on the floor of the adjoining room the other side of the original wall.
The walls themselves appear to be dry apart from the bottom inch or so close to the floor. Is this because the membrane has failed (if there is one!)?
The ext floor appears to be of poor quality, as it crumbles when rubbed with just fingers or is this because it has become damp?
If so what can be done? Concrete floor replaced?
If/when we get someone in to sort is there a registered gov body said person/company should be a part of?
The extensions were built a while ago and dont appear to have given you problems before yet you see damp around the edges. You could have developed a condensation problem because you have damp somewhere else in the property. Before you get people quoting you for works get an independent Damp Surveyor to look at it... you may be surprised.
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