With the cooler months ahead comes the annual winter mould attack; through our reliance on the indoors, using heaters which create condensation, drying clothes indoors and a reduction in direct sunlight.

What is Mould?
Mould is a form of fungus and is primarily spread by airborne spores which will develop and grow on almost any surface providing the following conditions are present;

• A relevant indoor humidity of 80% or higher
• Moisture, usually from condensation. Mould can develop in the absence of condensation, but its growth is accelerated by the presence of moisture
• A nutrient. Research has shown that certain ingredients in most paints and also household dust and cooking fumes provide excellent food or mould

Two types of mould are common;

• Sooty mould which leaves surfaces with a brown or black stain and which usually occurs on the walls and ceilings of bathrooms, bedrooms and in cupboards. Untreated, this mould will spread to other rooms in the house.
• Green furry mould which grows on organic or organic bearing surfaces such as shoes or clothes.

How can I prevent mould? 

1. Reduce indoor humidity by good ventilation and through regular airing of the dwelling. Keep exhaust fans clear of fluff and do not block air vents
2. Dry indoor air with space heaters and wipe dry any surface on which condensation appears. Avoid the use of Kerosene room heaters; unflued gas heaters may also cause problems
3. Dry clothes and footwear thoroughly prior to storage
4. Allow sunlight into the home whenever possible
5. Remove any sign of mould growth on walls ceilings and furniture using diluted household bleach or suitable household cleaner
6. Furniture should not be pushed up against walls. This creates dark airless areas and allows mould spores to grow

The above information was taken from a Department of Interiors publication entitled ‘Condensation and Mould in Houses and Flats’