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Rising Damp Treatment

Rising Damp - Dryzone injection Cream and Dryrods DPC

What is Rising Damp?

Rising Damp is caused by moisture rising from the ground into the walls of a building. If a damp proof course has failed, damp is able to rise up the walls because most construction materials contain tiny pores. These pores 'suck' water from the ground via capillary action, causing moisture to rise up the wall in the same way that oil rises through the wick of a lamp. When water rises in this way it often carries hydroscopic sulphates (waterborne salts) which can cause damage to many plasters and internal finishes

Dryzone damp proofing cream and the new Dryrod DPC rising damp injection system work by preventing moisture from rising through these pores.

How high does it rise?

The height to which rising damp will rise up a wall depends on a number of factors including the size of the pores in the wall, the type of wallpaper or paint on the wall, and the degree of dampness in the ground. In most cases, rising damp is unlikely to rise above 1.5 metres and is usually less than 1m. However, in extreme cases (e.g. where the wall is constructed of an exceptionally porous brick) moisture can rise more than 2 metres up the wall and water proofing may need to do likewise.

How do I know if I have Rising Damp?

Dryzone and Dryrod damp proof courses, otherwise known as chemical injection DPC, are specifically designed for the treatment of rising damp, so it is important to be certain that this is the cause of dampness before treatment begins. Other types of dampness that affect buildings (e.g. condensation, lateral damp or penetrating damp) are treated in different ways.

Look out for the following:

  • Signs of dampness limited to bottom 1.5m of ground-floor walls
  • Damp or decayed skirting boards
  • Salt deposits on the wall surface - these damage paints and plasters and sometimes look like cotton wool
Please follow this link to view some of the solutions we commonly use to treat rising damp.

Insurance work undertaken

We cover damp proofing and conversion projects across the UK but chiefly: Shrewsbury, Telford, Oswestry, Shropshire, Mid Wales, North Wales, Chester, Cheshire West, Welshpool, Wrexham, Clwyd, Powys, Gwynedd, Aberystwyth, Ceredigion or wherever we're needed!Forwater proofingwork call us for free advice or send us your enquiry via emailand we willget back toyou as soon as possible!

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