Rising Damp


Rising damp is caused by moisture rising up through porous masonry, the origin of the water being from the ground. Ground water contains soluble salts including chloride and nitrates. The height of the rise of the water is governed by a number of factors including the pore structure.

Internal wall suffering rising damp  Re-rendered wall with new damp proof course


Ideally, diagnosis should be based on a combination of the following:

o    Visual assessment
o    Use of moisture meter / gravimetric analysis
o    Analysis for soluble salts


Chemical damp proof courses

These are inserted to control the vertical passage of moisture from the ground where no damp proof course exists, or the existing one has failed. The chemical damp proof course should be installed in a position in accordance with good practise as described in BS.6576.1985. The ultimate objective is to
is to provide a water repellent or a pore blocking material.


The importance of the re-rendering and plastering can not be over emphasized. It must be considered as important as the installation of the damp proof course. It is also a wise decision to employ the company installing the damp course to also undertake the associated rendering and plastering.

On completion of the work the golden rule is to delay the decorating for as long as possible, to allow for the drying out process.

“Storm clarified to me the difference between rising damp and condensation issues. We had condensation which did not require expensive remedial work. They saved us hundreds of pounds in unnecessary work.”
Mr Jamal, Talworth St Roath, Cardiff 25th July 2012

“We had rising damp on our partition wall in the living room. Storm were super fast in getting the work done.”
Ruth Coles , Alfreda Rd Whitchurch Cardiff 4th August 2012

Case studies: Damp front bay Cardiff

Guarantee Protection Insurance

If you have a problem with rising damp, let Storm damp proofing give you a free estimate on repairing  the damage. We service the whole of the South Wales area including  Aberdare, Abergavenny, Barry, Bridgend, Blackwood, Bargoed, Caerphilly, Cwmbran, Clydach, Cardiff , Ebbw Vale, Llantwit Major, Maesteg, Mountain Ash, Merthyr Tydfil, Newport, Nelson, Neath, Port Talbot, Porthcawl, Pyle, Penarth, Pontypridd, Pontypool, Risca and Swansea.


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