Leodis Damp Control

Most commonly external walls exposed to severe weather conditions or unsheltered from the driving rain will suffer from penetrating damp.

Inadequately sealed windows and doors can also cause penetrating damp problems, overtime cracks in the brickwork/pointing can allow moisture to penetrate through the masonry saturating the internal plasterwork. Penetrating damp can also occur at low level, this is called bridging and is when the external ground levels are raised above the existing damp proof course (DPC), as a result the moisture within the external ground bears against the walls and penetrates through them.

Of the different types of damp, penetrating damp is usually considered the easiest to recognise, this is down to the way it presents itself on the internal walls and the changing weather conditions, for instance, the more water/moisture ingress the bigger the damp patch on the internal wall. Often after heavy rain fall the damp patch will grow in size, shrinking upon warmer weather conditions. 

Some tell tale signs your dealing with penetrating damp are;

· Damp patches high up/on ceilings

· Ingress of physical water

· Plaster work bubbling/cracking 

· Timber decay

· Hydroscopic salt crystallisation

If left un-treated penetrating damp can lead to further problems, such as;

· Timber decay

· Woodworm

· Wet/Dry rot

· Black spot mould 

· Damp odour 

· Wet plasterwork to touch 

As with any damp problem it’s something worth getting rectified as soon as possible, 

Failure to do so will only lead to more complexed defects in the long term. Find out how we treat penetrating damp or Contact the experts for a free survey and quotation.