To get rid of mould on the ceiling you can use chemicals or vinegar and just paint it over but the mould still comes back!
There are many situations that can cause mould to grow on the ceiling. One of the main reasons for mould to grow on the ceiling is lack of ventilation – with bedroom doors and windows closed for winter this is one way that mould will grow on ceilings. So it is a good exercise to leave bedroom doors open and windows slightly ajar during winter.
However, one of the major reasons for mould growth on ceilings is from saturated ceiling insulation from condensation caused by an unventilated roofspace – can you imagine an unventilated roofspace with rising heat escaping from the home hitting the underside of the roofing material. This point is called the dew point where the heated air loses its moisture and it could be raining in your roof.
Mould thrives on moisture so we don’t need to feed it.
Secondly, after long periods of rain the roofspace without effective roofspace ventilation, humidity will cause excessive moisture to build in the enclosed unventilated roofspace and moisture soaked insulation is the perfect breeding ground for mould.
So, with this continual battle with moisture soaked insulation on the ceiling trying to kill the mould with chemicals or painting over will not solve anything, only effective roof ventilation will dry up the affected roofspace especially when bathroom and kitchen fans are also dumping moisture into the roofspace.
When chemicals and painting won’t get rid of mould, with all this access for moisture don’t you think it is time to install an effective roofspace ventilation system to dry out your roofspace and control the spread of mould.
This is usually only thought of after the problem of mould arises.
Then after you have installed an effective roof ventilation system you can kill the mould with chemicals and paint it over.
Remember if you clean the mould from the bottom of the ceiling and it is actually growing under the moisture soaked insulation on the top of the ceiling it will simply grow back underneath.
Roof ventilation is now mandatory in all new homes.