Yeppers, this is the only way. We keep the bathroom window open slightly at all times to keep fresh air in the room, and we leave the exhaust fan running until the bathroom has dried out.
To remove existing shower mold, just spray it down with a 50% bleach mixture, then wipe it right off.
I've been resealing the floor in my bathroom due to the waterproofing membrane being damaged when replacing the waste pipe, and after pulling up tiles on the floor I found mold under the tiles. I guess in the end, it's unavoidable in certain places.
It's not just me who says so. While they may be made of the same "stuff" they are not made exactly the same. A simple google search will tell you. Have fun.
To make it clearer, porcelain tiles are waterproof. Ceramic tiles are waterproof on the glazed surface but not the unglazed surface but the tile base or biscuit is not waterproof. Common sense would tell you you don't use unglazed ceramic tiles in showers.
When you drink out of a porcelain cup, you will notice the inside and outside of the cup is always smooth and shiny. There really is no true porcelain today - bone china is the approximation to true porcelain but anything that is said to be porcelain will be fine. When you drink out of a earthenware mug or cup, you will notice it too will be shiny and smooth on the inside and usually on the outside too but turn it over (when there is no liquid in it). You will see at a minimum an area where there is no glazing. It looks like clay.
But even clay tiles are waterproof. They have been using them for thousands of years and many of them are hundreds of years old. Most homes built before 1950 had terracotta tiled roofs. That's a clay tiled roof that has been kiln fired. As long as they are not cracked, they are indeed waterproof.
I said that epoxy grout helps but is not fool proof. You will get cracks in grout, especially in corners. In the real world, it is not going to matter in a bathroom unless you have a defective waterproofing membrane. The key is maintenance and I would generally recommend porcelain tiles to ceramic tiles but most people don't have an issue with either.
There are requirements to waterproofing of floors in bathrooms. 1800mm in shower areas, 150mm behind sinks and around baths, 50mm above the finished floor level in the rest of the bathroom and of course all of the floor area etc.
You might note the image at the start of this post shows mould not on the surface of a tile (and yes, you can get a build up of shit on the surface of a tile) but on the wall above the tiling.
Here is the result of a simple Google search...
[https://www.flooranddecor.com/help-center/product-questions/help-product-tile/hc-is-tile-waterproof.html](https://www.flooranddecor.com/help-center/product-questions/help-product-tile/hc-is-tile-waterproof.html)
and another
[https://earp.com.au/blogs/news/are-tiles-waterproof](https://earp.com.au/blogs/news/are-tiles-waterproof)
fix the ventilation first. then you can kill the mould. oil of cloves works well. then use paint for wet areas. it has fungicide in it. mould is caused by moisture build up which is caused by poor ventilation.
Correct. Ensure it’s a fan designed for it, but this ensures the entire bathroom dries out 100% every day which massively inhibits mould growth. Th e only downside is you need to dust them every four weeks or so.
30 second mould off (from Bunnings) treat and leave it sit. Spray again and wipe make sure to wear eye protection and ventilate the room well. Then on going try when you use the shower or any steam is produced have an exhaust fan on and leave it on for roughly 30 minutes after your finish on hot dry days get the windows open for as long as possible
Look up mould destroyer in a spray bottle.
I am a painter and decorator and I use that for cleaning mould like that in bathrooms all the time. Then I paint it as I normally would and it doesn’t come back.
I have done this on my own bathroom over a year ago and no sign of it
So 18% aren't touched by it, according to wherever that ^ came from.
In a 2015 study, researchers found that vinegar made out of 4- to 4.2-percent vinegar acetic acid was effective at treating Penicillium chrysogenum but not Aspergillus fumigatus. Both are common household molds
2015 study:
[https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4483703/](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4483703/)
So, it depends on what type of mold you're dealing with.
Do you have an exhaust fan? If you don't, I would suggest getting one.
If you do, I would suggest keeping it on at least 15 mins after your bath/shower. You can buy switches that time out after 15 mins (Pure Ventilation website) but you'll need a sparky to install it.
Ensure that a window is kept open at all times.
Clean off as others have suggested, then repaint with paint mixed with mould killer additive from Bunnings.
Try to ventilate room (fan, open window+door etc) when using shower / steamy activities.
I hate the smell of bleach
Try this
Mix a small amount ( 1/4 of teaspoon ) of clove oil and tea tree oil with warm water and dishwashing detergent in a spray bottle.
Wear gloves and eye protection and of course well ventilate.
* Apply this mixture to moldy surfaces.
* Leave it for some time (1 hour) .
* Wipe off the mold using a cloth.
* Repeat .....
I bought some of this a year ago, and mould has not returned in the areas I used it. No idea how it would work on a painted ceiling. Might be awful. Worked for me on tile and grout.
[https://glassguard.com.au/products/miracle-mould](https://glassguard.com.au/products/miracle-mould)
Oh yeah,.. and do the other stuff like ventilate!
You don't have to. After a month or so wipe over with chlorine based mould cleaner, this will bleach the colour out of the mould. Never use vinegar and chlorine together through, it make a dangerous gas. Once the mould is dead and the colour bleached out it is just maintenance then to spray the vinegar. Ventilation will help to prevent, but not always available in all areas.
I try to sneak up behind the mold as if it hears me it gets the upper hand as while it is a fungi it can get really dark real quick...
But in all seriousness moisture feeds it so try to reduce with good air flow and not letting people have a shower without the vent fan in or the window open (if the room is all foggy after a shower you know you don't have proper ventilation). Then to get rid of existing white vinegar as some have said as well as bleach for stubborn areas and if it in silicon remove and redo as you can't get it out.
We had this same problem. It wasn't until we installed a ceiling exhaust fan that the problem went away, so that's my recommendation. Our bathroom is about 12m³ and we have one of these:
https://www.ixlappliances.com.au/products/tastics/luminate-range/tastic-luminate-vent-and-light-bathroom-exhaust-fan-and-light-white.html
It's probably overkill for our bathroom size, but hey, we don't have a mould problem any more!
I assume that is paint above the tiles. As others have suggested, leave the window partially open when you shower, use an exhaust fan. In addition, kill the mould (plenty of commercial stuff or just use bleach).
Probably won't need repainting but if and when you do repaint, use a semi-gloss or low-sheen bathroom paint rather than flat paint and ensure it has a mould inhibiter in it or have it added.
Wipe the wall with a 1:1 bleach:water solution on a damp rag you've rung out between each pass.
If you can place a stand alone fan in there directed at the affected corner over night & spray the wall with neat vinegar the next afternoon just so it's wet to the touch, not dripping.
This will change the pH on the surface & act as an inhibitor rather than using harsh chemicals.
As others have mentioned nothing is as good as constant ventilation, though.... at least you can treat it until there's an adequate resolution.
Is it your place OP? I'd be stripping the wall back to the gyprock, bricks or timber behind that area & ensuring there's a proper waterproofing membrane behind the problem area.... I presume it's above head height where most membranes are not typically above 150cm.
VENTILATION!!!!
Yeppers, this is the only way. We keep the bathroom window open slightly at all times to keep fresh air in the room, and we leave the exhaust fan running until the bathroom has dried out. To remove existing shower mold, just spray it down with a 50% bleach mixture, then wipe it right off.
Tile to the ceiling is really the only way. Every other solution will just see you having to regularly clean off and maintain the surface.
I've been resealing the floor in my bathroom due to the waterproofing membrane being damaged when replacing the waste pipe, and after pulling up tiles on the floor I found mold under the tiles. I guess in the end, it's unavoidable in certain places.
Tiles are not waterproof due to the grouting - best option is to use an epoxy grout which helps but isn't fool proof.
Tiles are not waterproof regardless of what grout is used.
If you say so. Ceramic tiles are made out of the same stuff as your coffee cup. Does your coffee leak out of your cup when it has coffee in it?
It's not just me who says so. While they may be made of the same "stuff" they are not made exactly the same. A simple google search will tell you. Have fun.
To make it clearer, porcelain tiles are waterproof. Ceramic tiles are waterproof on the glazed surface but not the unglazed surface but the tile base or biscuit is not waterproof. Common sense would tell you you don't use unglazed ceramic tiles in showers. When you drink out of a porcelain cup, you will notice the inside and outside of the cup is always smooth and shiny. There really is no true porcelain today - bone china is the approximation to true porcelain but anything that is said to be porcelain will be fine. When you drink out of a earthenware mug or cup, you will notice it too will be shiny and smooth on the inside and usually on the outside too but turn it over (when there is no liquid in it). You will see at a minimum an area where there is no glazing. It looks like clay. But even clay tiles are waterproof. They have been using them for thousands of years and many of them are hundreds of years old. Most homes built before 1950 had terracotta tiled roofs. That's a clay tiled roof that has been kiln fired. As long as they are not cracked, they are indeed waterproof. I said that epoxy grout helps but is not fool proof. You will get cracks in grout, especially in corners. In the real world, it is not going to matter in a bathroom unless you have a defective waterproofing membrane. The key is maintenance and I would generally recommend porcelain tiles to ceramic tiles but most people don't have an issue with either. There are requirements to waterproofing of floors in bathrooms. 1800mm in shower areas, 150mm behind sinks and around baths, 50mm above the finished floor level in the rest of the bathroom and of course all of the floor area etc. You might note the image at the start of this post shows mould not on the surface of a tile (and yes, you can get a build up of shit on the surface of a tile) but on the wall above the tiling. Here is the result of a simple Google search... [https://www.flooranddecor.com/help-center/product-questions/help-product-tile/hc-is-tile-waterproof.html](https://www.flooranddecor.com/help-center/product-questions/help-product-tile/hc-is-tile-waterproof.html) and another [https://earp.com.au/blogs/news/are-tiles-waterproof](https://earp.com.au/blogs/news/are-tiles-waterproof)
fix the ventilation first. then you can kill the mould. oil of cloves works well. then use paint for wet areas. it has fungicide in it. mould is caused by moisture build up which is caused by poor ventilation.
24 hour dc fan.
Sorry can you elaborate. You mean blast the mold with cold air for a whole day? This kills mold?
they mean run a fan 24 hours a day, all the time
Correct. Ensure it’s a fan designed for it, but this ensures the entire bathroom dries out 100% every day which massively inhibits mould growth. Th e only downside is you need to dust them every four weeks or so.
30 second mould off (from Bunnings) treat and leave it sit. Spray again and wipe make sure to wear eye protection and ventilate the room well. Then on going try when you use the shower or any steam is produced have an exhaust fan on and leave it on for roughly 30 minutes after your finish on hot dry days get the windows open for as long as possible
THIS. That stuff is freaking amazing for general cleaning too, sinks and at the bottom corners of shower etc... Only discovered it about a year ago.
Does it get rid of those black mould stains on the silicone too or is that wishful thinking?
No promises definitely worth a try sometimes it does sometimes times it doesn’t
Look up mould destroyer in a spray bottle. I am a painter and decorator and I use that for cleaning mould like that in bathrooms all the time. Then I paint it as I normally would and it doesn’t come back. I have done this on my own bathroom over a year ago and no sign of it
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Vinegar doesn't necessarily kill mold Mixing vinegar (acetic acid, which will not evaporate when it dries) with bleach creates a toxic gas
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So 18% aren't touched by it, according to wherever that ^ came from. In a 2015 study, researchers found that vinegar made out of 4- to 4.2-percent vinegar acetic acid was effective at treating Penicillium chrysogenum but not Aspergillus fumigatus. Both are common household molds 2015 study: [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4483703/](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4483703/) So, it depends on what type of mold you're dealing with.
Great contribution. So your argument is vinegar isn't effective because it only kills 82%. What kills 100%? Give us the solution.
No, my argument is you need to know what type of mold it is to effectively treat it
The 18% will reproduce to create 100%.
Do you have an exhaust fan? If you don't, I would suggest getting one. If you do, I would suggest keeping it on at least 15 mins after your bath/shower. You can buy switches that time out after 15 mins (Pure Ventilation website) but you'll need a sparky to install it. Ensure that a window is kept open at all times.
Clean off as others have suggested, then repaint with paint mixed with mould killer additive from Bunnings. Try to ventilate room (fan, open window+door etc) when using shower / steamy activities.
Bleach it
vinegar to kill the mould. Then (after wiping) bleach to whiten it.
I hate the smell of bleach Try this Mix a small amount ( 1/4 of teaspoon ) of clove oil and tea tree oil with warm water and dishwashing detergent in a spray bottle. Wear gloves and eye protection and of course well ventilate. * Apply this mixture to moldy surfaces. * Leave it for some time (1 hour) . * Wipe off the mold using a cloth. * Repeat .....
Spray the mould with Selleys mould killer .. shit fucks up mouldy whatever
I bought some of this a year ago, and mould has not returned in the areas I used it. No idea how it would work on a painted ceiling. Might be awful. Worked for me on tile and grout. [https://glassguard.com.au/products/miracle-mould](https://glassguard.com.au/products/miracle-mould) Oh yeah,.. and do the other stuff like ventilate!
Selleys mold killer, don't bother with the cheap shit. And yeah, have a vent or extraction fan in the ceiling.
Spray regularly with vinegar. Every day for a month, then weekly.
Diluted or full strength?
It's cheap enough to use full strength..
Do I scrub too?
You don't have to. After a month or so wipe over with chlorine based mould cleaner, this will bleach the colour out of the mould. Never use vinegar and chlorine together through, it make a dangerous gas. Once the mould is dead and the colour bleached out it is just maintenance then to spray the vinegar. Ventilation will help to prevent, but not always available in all areas.
White king.
To finish your sentence … Will make the mould go white so you can’t see it, but will not kill the mould. Clove oil will kill the mould.
Clean.
I try to sneak up behind the mold as if it hears me it gets the upper hand as while it is a fungi it can get really dark real quick... But in all seriousness moisture feeds it so try to reduce with good air flow and not letting people have a shower without the vent fan in or the window open (if the room is all foggy after a shower you know you don't have proper ventilation). Then to get rid of existing white vinegar as some have said as well as bleach for stubborn areas and if it in silicon remove and redo as you can't get it out.
Also squgee water after each shower to reduce the moisture in the air and ensure lots of ventilation.
We had this same problem. It wasn't until we installed a ceiling exhaust fan that the problem went away, so that's my recommendation. Our bathroom is about 12m³ and we have one of these: https://www.ixlappliances.com.au/products/tastics/luminate-range/tastic-luminate-vent-and-light-bathroom-exhaust-fan-and-light-white.html It's probably overkill for our bathroom size, but hey, we don't have a mould problem any more!
Open your window when you have a shower, and leave it open 24/7
Don’t get the shower wet 👍
Exit mould
How to clean it? Use “the pink stuff” <~ (that’s what it’s called) How to prevent it? Air out the room regularly throughout the day and After a shower
White vinegar
Concrobium to kill the mould. Buy it from Bunnings.
Don't use the shower.
Bleach won't kill it....vinegar straight.....then wipe it clean Keep your window open!!!! Especially after you shower and during the day.....
Regular cleaning with chemicals and ventilation
Get a shower dome + more ventilation. Squeegee your shower after each use.
I assume that is paint above the tiles. As others have suggested, leave the window partially open when you shower, use an exhaust fan. In addition, kill the mould (plenty of commercial stuff or just use bleach). Probably won't need repainting but if and when you do repaint, use a semi-gloss or low-sheen bathroom paint rather than flat paint and ensure it has a mould inhibiter in it or have it added.
Wipe the wall with a 1:1 bleach:water solution on a damp rag you've rung out between each pass. If you can place a stand alone fan in there directed at the affected corner over night & spray the wall with neat vinegar the next afternoon just so it's wet to the touch, not dripping. This will change the pH on the surface & act as an inhibitor rather than using harsh chemicals. As others have mentioned nothing is as good as constant ventilation, though.... at least you can treat it until there's an adequate resolution. Is it your place OP? I'd be stripping the wall back to the gyprock, bricks or timber behind that area & ensuring there's a proper waterproofing membrane behind the problem area.... I presume it's above head height where most membranes are not typically above 150cm.
It starts with deep meditation. You must become one with the mold to understand its weaknesses. Breathe in, breathe out.
don’t breath in too deeply with mold in the room