My old house had one damp interior wall - no dpc- so I got a bricky to replace all the wall below floor level in engineering brick and with a modern DPC. Some years later I now find the wall is damp again to bout 400mm above the floor level. What could be causing this?
Damp plaster
- Thread starter elmsoft
- Start date
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It would help if you described the wall construction, and the rooms/area either side of the wall.
If you have a physical DPC, then the only way moisture can get up is if the DPC is broken or it is bridged.
The alternatives are a leaking service pipe, or depending on the wall materials and location, condensation
If you have a physical DPC, then the only way moisture can get up is if the DPC is broken or it is bridged.
The alternatives are a leaking service pipe, or depending on the wall materials and location, condensation
Hi
The wall is an interior wall, about 5 metre s long made of single brick. There is no plumbing above floor level. The brickie knocked away the brickwork below floor level down to sub-floor ground level, a distance of about a metre and built up in engineeering brick with a dpc about half way up.
elmsoft
The wall is an interior wall, about 5 metre s long made of single brick. There is no plumbing above floor level. The brickie knocked away the brickwork below floor level down to sub-floor ground level, a distance of about a metre and built up in engineeering brick with a dpc about half way up.
elmsoft
Then its one of these
the DPC is broken
the DPC it is bridged
condensation
A fourth possibility is some soluble/hygroscopic salts deposited by the previous instance of damp, but this would have presented further moisture much sooner
the DPC is broken
the DPC it is bridged
condensation
A fourth possibility is some soluble/hygroscopic salts deposited by the previous instance of damp, but this would have presented further moisture much sooner
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check if the DPC is above ground level preferably 150mm
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