Rising Damp

What is Rising Damp?

Rising damp is a problem commonly associated to older properties where damage has occurred to the original damp proof course or where the original level of the damp proofing has been breached by a patio or drive.

Essentially water is drawn up from the ground working through brick, block and mortar eventually permeating plaster causing damage to walls, decay to timber and heat loss owing to increased conductivity in the walls. In addition rising damp can cause health issues especially those susceptible to breathing problems and more often than not will produce a very unpleasant odour that get’s into clothes and soft furnishings.

How to spot Rising Damp

There are several tell tale signs to look out for when assessing whether you have rising damp:

  1. A line or “tide mark”. This can be as far up the wall as a metre.
  2. Damp patches or discoloured wallpaper
  3. Peeling wallpaper
  4. Decaying timbers i.e. skirting boards, door frames etc
  5. White marks caused by efflorescent salts drawn out of the brickwork

How to treat Rising Damp

The first answer is QUICKLY! Any delay in getting your damp problem fixed could lead to further costs and inconvenience not to mention the effect on you and your families health and wellbeing.

Getting us in to assess the damage will ultimately determine the solution we provide but in normal circumstances we will offer chemical damp proof treatment which involves the injection of chemical under pressure into holes pre-drilled at regular intervals along with remedial treatments.

Case study – Warnham, West Sussex

We were contacted by a client who had brought this 400 year old period property 18 mths ago, they were concerned about the damp that was developing. we arranged a initial meeting to understand which areas were affected and to diagnose the cause, after running some tests everything pointed to rising damp. We then emailed the client an estimate and specification which included re-plastering in lime so the property could breath as this was how it was originally constructed.

On the agreed start date we set about removing the affected plaster, we soon realised that someone has previously attempted a repair but sadly using the wrong materials. As you can see on the exposed timber there is a distinct tide mark where sand and cement has locked in the moisture, then you can see its dry where the original lime plaster has been used.

Unfortunately the contractor didn’t have an understanding of which materials should be used to carry out the work, hence why its being redone within 10 years.

When working in period properties its important to have an understanding of materials and the potential impact on the property, this project has now dried out and can breath because we have used traditional lime plastering methods.

Case study – Reigate, Surrey

Mr & Mrs H contacted us to say that they had just purchased a property in Reigate, Surrey and that they needed the rising damp problem treated within a specific time scale. We provided them with a free honest, no obligation quote to treat the living room, dining room and entrance hall and the quote was accepted and booked in by the following week to suit our clients needs.

Our work to the properties rising damp problems was solved within 7 days and our client was extremely pleased with our workmanship from start to finish

Tide Marks of Rising Damp     Preperation