Condensation on Walls and How to Fight it
Why condensation forms on walls?
You perhaps already realise this, but condensation on walls occurs at ‘dew point’ resulting from the room air temperature being higher than the wall temperature, (it is effectively water vapour in the warm air turning to water because of the cooling effect of the wall). The longer the time the wall remains cold the worse the condensation will be – much the same as when you see condensation forming on the surface of a glass or bottle containing a chilled drink. Just a few degrees difference between wall and air temperature can be enough to cause condensation problems.
If the wall never warms up then the condensation can be a really bad problem quickly leading to the formation of mould and allergy inducing spores – this is why condensation often forms on outside-facing walls and in ‘cold corners’.
What can be of help to fight condensation on walls?
A layer of Wallrock Thermal Liner means that the wall surface temperature, which is effectively the layer of Wallrock Thermal Liner, warms up and equalises with the room air temperature quicker. This prevents the cold walls from coming into contact with the warm room air and stops the condensation on the walls forming thereby significantly reducing the chances of mould formation.
Wallrock products are breathable too and allow any moisture in the walls to move through naturally.
Part of the problem lies in the lack of or ineffective ventilation. We would suggest that you check your wall vents ensuring they are not blocked. It might be advisable that you get a dehumidifier to draw excess moisture from the air – this is especially useful during the winter months. It doesn’t have to be on all the time (in fact that would cause the air to be too dry in the house) and only come on when needed. Some of the modern dehumidifiers provide you with the reading of humidity level in the air, which helps greatly.