Monday, 16 February 2015

Rising Damp

Rising Damp – What is it?

Rising Damp is caused by moisture rising from the ground into the walls of a building. Damp is able to rise up the walls because most construction materials contain tiny pores. These pores ‘suck’ water from the ground, causing moisture to rise up the wall in the same way that oil rises through the wick of a lamp.

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. However, in extreme cases (e.g. where the wall has been covered with an impervious membrane) moisture can rise more than 2 metres up the wall.
How do I know if I have Rising Damp?
Diagnosis of dampness in buildings should be carried out by a professional, however, typical signs of rising damp include:
·         * Signs of dampness limited to bottom 1.5m of ground-floor walls
·         * Damp or decayed skirting boards
·         * Salt deposits on the wall surface

Rising damp and mould can affect a person’s health. Don’t let your house wreck your health! 

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