Does Temperature Affect Mold Growth?


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Thomas Rooney answered
Temperature does affect mould growth especially if you do not have cavity walls. During the winter if you do not have enough insulation on the outside the cold will condense with the warmth inside the home to produce condensation on the walls towards the bottom. If left untreated in homes that are less well ventilated then mould will start to grow as black spores on the corners of the walls if not treated.
If treated early you can do a number of things. Ensure you chip the plaster away where it has been affected and treat with two coats of a strong mould killer. Then fill the wall with polyfilla and buy some anti-condensation paint which is fantastic as it is a thicker paint that increases the warmth and adds protective layers to your walls. Apply two coats and once dry apply with normal paint accordingly.
You will need to monitor the temperature and humidity but it can be controlled by using the heating or by switching on a dehumidifier especially at night. This is usually a household appliance that has the opportunity to lower the level of humidity by drawing in the outside moisture.
The humid air and ventilation can cause mould to grow and pose a number of health risks but if used this can significantly improve the moisture situation. Higher humidity is also a haven for bugs, insects and moths so it is essential you use a dehumidifier if you are living in a hot climate. Relative humidity in homes is normally around 30 to 50 per cent which dehumidifiers can do to bring the level down to if it is higher.

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