When the air gets warmer, cooler surfaces in your home retain some water and release moisture – this leads to condensation and mould. This is often mistaken for damp.
Spot the signs of condensation
- Mirrors and windows steam up.
- Furnishings feel damp.
- Moist walls.
- Black spots of mould appear on outside-facing walls.
Know the cause of condensation
- Poor ventilation.
- Cold surfaces.
- High amounts of water vapour from cooking, bath, tumble dryer, etc.
- Have medium/low heat through the house. Heating one room to a high level and leaving others cold makes condensation worse in unheated rooms.
- Keep your central heating on longer, allowing rooms to stay warmer longer.
- If you don’t have heating in every room, keep unheated rooms open to let heat in. Don’t use paraffin or liquid gas heaters.
- Leave a gap between furniture and external walls.
- Open a window when boiling a pan or a kettle, running a bath or using a tumble dryer.
- Keep lids on boiling pans.
- Don’t dry clothes on radiators.
- Don’t over-ventilate when it’s cold.
- ‘Cross ventilate’ your home by opening a small window downstairs and another upstairs on the opposite side. Make sure you close them when you leave.
- Open internal room doors so that drier air can circulate.
- Keep bathroom and kitchen doors closed when cooking or bathing.
- Treat black mould immediately. Mould can easily be wiped away.
- Mould and mildew spray can be bought from most supermarkets.