We have just moved into a 100 year old end terraced house, and were aware that there was some damp before we moved in. Now we are in and have had a chance to look at it properly it is apparent that one of the worst affected areas is a dividing internal wall between the kitchen and the lounge - this wall isnt on a boundary with an external wall at all. However there is a shower installed on the same wall on the floor above, in a similar region to where the wall is most affected. Does anyone have any thoughts on whether the shower could be the cause of the problem, i.e. could there be a water pipe running along the wall which has potentially burst or anything? Any ideas how i would find this out, or other causes of internal damp are much appreciated!
Its quite likely that the silicone around the tray is defective or the waste is leaking under the tray. Also check the tray is not damaged. I looked at a damp problem last week and found a split in the shower tray. They have been using it like that for a year now!
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