Building Rising Damp

Damp Rising ground dampness is the term used where the lower regions of old walls are affected by dampness from the ground. In a contemporary building, a sealed damp-proof skin is placed in block work at a low level, which works as a barricade against moving ground dampness.

In past times, rising ground dampness and its properties were not a severe problem, and with the exception of very far sighted practice, old stone and brick walls were not offered with a damp-proof membrane. The result is that naturally arising waters from the ground are immersed by the porous materials of wall construction i.e. bedding and pointing mortars.

Additionally, the soared ground waters have the volume to rise by capillary action, reaching an average height of 1 metre. The result is that the affected walls are lastingly damp at a low-level, being clearly affected in the form of damp staining of decorations, breakdown of plaster, weakening of skirting timbers, window panelling timbers, etc.

Our business offers the 2 main systems by which rising damp is removed:

  • Siliconate or liquid chemicure injection damp-proof course.
  • Electro-osmotic damp-proof system. Before committing to remedial damp-proof treatments, with related disturbance and cost, it is vital that the real cause of low-level dampness is recognised.

Other factors could subsidise; such as pipe leaks, incorrect level of damp-proof course, defective floor damp-proof course, high external ground levels, etc. We will be pleased to provide you with a specialist assessment of wall dampness; setting out the source, recommended remedial action, and cost associated with same.

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