Mould, Dampness and Ventilation
Mould and condensation can occur in many New Zealand homes, particularly during colder months, and managing moisture early can help prevent it from becoming a larger issue. Your property should already meet the Healthy Homes Standards for insulation, heating, ventilation and moisture management, however day-to-day habits inside the home play an important role in maintaining a dry and comfortable environment.
SUPPORTING GOOD VENTILATION Fresh air reduces condensation and helps prevent mould growth, and small everyday habits can make a noticeable difference:
• Open windows when weather allows to provide airflow through the property.
• Use extractor fans in the kitchen and bathroom every time you cook or shower.
• Keep lids on pots while cooking where practical.
• Avoid drying clothes indoors if possible, or use a vented dryer.
• Leave wardrobe doors slightly open and keep furniture a little away from walls to allow air to circulate.
• If using your own heater, choose electric models rather than unflued gas heaters, as gas heaters release moisture into the air.
MANAGING CONDENSATION AND EARLY SIGNS OF MOULD A small amount of condensation is common in winter, and wiping windows and sills in the morning helps prevent moisture from building up. If you notice mould starting to form, it’ s important to clean it early before it spreads. Safe options include:
• White vinegar solution: Mix equal parts white vinegar and water, apply, leave to sit, then wipe clean.
• Warm water with mild detergent: Suitable for general cleaning on most surfaces.
• Bleach solution: One part bleach to three parts water can assist with persistent mould( ensure the area is well ventilated while cleaning).
If mould continues to return, even when ventilation and condensation are being managed, it may indicate an underlying issue. Please contact your property manager so we can assess the situation and arrange the appropriate next steps.
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