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 finishesDryzone 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
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:
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! For water proofing work call us for free advice or send us your enquiry via email and we will get back to you as soon as possible!
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