Hi guys,
I have finally got to the source of a damp problem under the stairs. Basically the plaster, (and then once that was removed), the render, was damp. It only appeared on the surface and once I removed it I found what is shown in the attached photo.
There seems to have been a damp proof course put in at some point, (there are brown plastic caps along the length of the wall), and that seems to be holding as there is no damp above it in the brickwork.
The problem appears to be the brickwork below it, (which is below external ground level) is damp and the render and plaster over the top was sucking up this damp causing a surface damp problem.
Having found the problem, I have no idea how to fix it or work around it. I need to re-render and plaster the wall but I assume the exact same problem will happen.
Can anyone advise on how to prevent this happening?
(I have already dug well down and put a DPM against the external wall, backfilled with stones for good drainage, concreted over and installed a concrete fillet to keep water away from the house).
Thanks for all your help.
I have finally got to the source of a damp problem under the stairs. Basically the plaster, (and then once that was removed), the render, was damp. It only appeared on the surface and once I removed it I found what is shown in the attached photo.
There seems to have been a damp proof course put in at some point, (there are brown plastic caps along the length of the wall), and that seems to be holding as there is no damp above it in the brickwork.
The problem appears to be the brickwork below it, (which is below external ground level) is damp and the render and plaster over the top was sucking up this damp causing a surface damp problem.
Having found the problem, I have no idea how to fix it or work around it. I need to re-render and plaster the wall but I assume the exact same problem will happen.
Can anyone advise on how to prevent this happening?
(I have already dug well down and put a DPM against the external wall, backfilled with stones for good drainage, concreted over and installed a concrete fillet to keep water away from the house).
Thanks for all your help.