Hi , Our house is Victorian and a mix of brick and stone with dry lining by plaster board. The entrance hall is very damp on the exposed wall and I have seen various barrier systems using a tough plastic which is fastened over the inside of the wall and can be plastered. One make we have seen is Newlath 2000. Various people have advised me against Silicone Injection saying it is only a temporary fix. Obviously all the manufacturers make lavish claims for their product and I would be grateful for any comments on these methods or any other recommendations.
Many Thanks Mark