Home Condensation Explained Condensation 7 - "I'm sure the Rising Damp in the walls is causing the condensation"
Condensation 7 - "I'm sure the Rising Damp in the walls is causing the condensation" PDF Print E-mail

This is a common misunderstanding but it is not true.

Let us imagine an 'average' three bedroom house with an 'average' number of walls affected by rising damp to varying heights. Let us be very generous and imagine that our 'average' house has a surface area of 20m² of wall actually affected by rising damp. Enter into this 'average' house one living, breathing and perspiring adult. If the surface area of that adult's lungs were laid out flat on the floor they would nearly cover a tennis court! If we then apply body heat and powered ventilation (breathing) over the moist membranes of that persons lungs - one breath will introduce more water vapour into the atmosphere inside the house than 20m² of damp wall would in a week! (See Interesting Article 1 on this site)

Add to this 2m² of perspiring warm skin (representing 10% of the wall surfaces affected by rising damp in our 'average house') and you begin to see how condensation is not caused by, or a consequence of, rising damp. If you then go on to imagine the lung surface areas involved and water vapour production of three or four people living in a house possibly even with a panting dog and tropical fish tank you begin to understand how rising damp, if it is present at all, would contribute insignificant levels of water vapour into the atmosphere and would not be responsible for condensation.

 
Contact Peter: Email - info@dampdecay.co.uk - Telephone: 015242 71794