Causes of Mould

Mould is part of our environment and will grow readily when given the right environmental conditions indoors. These conditions can be due to the following:

Flooding during heavy rains
Moisture seeping through walls and under carpets, behind plaster wall cavities and skirting boards and you may not even realise its occurring – but if you are aware of this happening call in a professional remediation company. Ensuring that wet carpets are lifted and drying equipment installed, do not attempt to dry down with out lifting. Ensure that moisture testing carried out before reinstalling carpets. Some insurance companies will send out their remediation company but this doesn’t mean that they have the skills or know how to or that they are not doing it to a price – Some insurance companies will not let their remediation companies use dehumidifiers and by doing this they could be playing Russian Roulette with your health.

Burst water pipesMould In bathroom cabinet
Builders are notorious for looking at these issues and stating that it should be left to dry for a couple of weeks and then they will come back and ascertain if there is any damage. The mould that can build up under kitchen cupboards, behind skirting boards and in wall cavities can and does affect some individuals. As with any water damage contact a local professional and if you are not sure if what they are doing is correct feel free to contact us and can outline what we think they should do to ensure no health issues develop.

Overflows from washing machines baths or fish tanks should be dealt with immediately by a professional as without be addressed adequately mould in some form will develop

Evidence of Mould in the homeBack up from drains
If you have a back up from drain or floor waste in side the house don’t let anyone just clean and dry carpets- remember if it came from a floor waste its contaminated by the same things which go down a toilet, remove and dispose of affected carpets, remove skirting boards and if it affected wall plaster remove the affected areas immediately then dry down professionally.


Rising Damp
Rising Damp or Poor drainage allowing water penetration under the house or building- not everyone is away but moisture under a house will cause humidity issues within a building, leading eventually to growth in bacterial and fungal contamination. So addressing sub floor drainage issues is extremely important to ensure you have a healthy building. Depending on the site sub floor mechanical ventilation is an alternative direction in removing evaporated moisture

Leaking roofs
Leaking roofs will not only produce brown marks on ceiling plaster but will result in fungal growth within the plaster. If you have insulation in the roof cavity it will hold water for a lot longer, in turn increasing the resultant fungal and bacterial growth

Condensation in roof voids or wall cavities – as with any ingress of water on an ongoing basis be aware that wall cavities which remain wet or continue to be wet for short period will facilitate a fungal growth environment due to moist vapour pressure within the wall cavity the same will occur in roof cavities.

Humidifiers in baby’s rooms-the drier a room the healthier the occupants will be so be aware of putting humidifiers into baby’s room without some sort of dehumidifier – in other words don’t install a humidifier and create condensation problems which may lead to fungal contamination

Wet clothing
Wet clothing not being dried – water from washing hung in a house without ventilation will increase the humidity in a house which is the environment that fungi like to grow in

Carpet Cleaning
Cleaning of carpets where carpets are left wet for days – there are numerous cowboys who can do more damage to your health by leaving your carpets wet for days – ensure you contact you local association and here in Australia its NUCCRA who can direct you to someone who is qualified to clean your carpets without promoting mould growth

Clothes dryers
Clothes dryers produce humidity if not exhausted to the outside air – this is an issue where there is little or no ventilation to remove the humid air while the unit is running

Gas Heaters
Unventilated gas heaters (No Flue) also increase humidity eventually leading to condensation on colder surfaces and the result can be detrimental to your health

Bathroom Ventilation
Bathrooms which are not mechanically ventilated develop mould especially in winter when showering becomes longer and hotter

Remember moisture and humidity in any occupied space will eventually lead to various forms of indoor environmental contamination – in the USA they refer to that as Sick Building Syndrome don’t let your family or staff be exposed to these forms of potential dangers.

Leaking Showers Mould under leaking shower
Leaking Showers will often go un-noticed as not everyone goes under a building to ensure its all dry – the water can affect the upstairs wall cavities and actual flooring- the fungal and bacterial growth can produce various chemicals which have been associated with health issues.

Remember moisture and humidity in any occupied space will eventually lead to various forms of indoor environmental contamination – in the USA they refer to that as Sick Building Syndrome don’t let your family or staff be exposed to these forms of potential dangers.



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