Dealing with condensation, damp and mould

Damp from condensation

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Signs of condensation damp are:

• steamed up windows and walls
• decay in decoration, like discolouration of window panes
• the appearance of black mould

Damp patches and mould will usually form behind large furniture, in corners of external bearing walls, or around windows.

Damp from defect

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Damp patches and mould will usually form in the area of the defect and beyond, due to water travel. This kind of damp may blister and damage decorative finishes.

Penetrating damp can be identified by moisture penetration on walls inside your house. Walls will be damp to the touch, or there will be discolouration of plaster or decorations. It’s more likely to be at a high level on external walls and more noticeable when it rains.

You can spot the signs of damp on walls because they may feel cold. Ceilings with damp will look stained and tarnished.