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  Reply # 1740515 16-Mar-2017 20:54
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Bleach won't kill mould growing on anything other than the surface of the paint

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  Reply # 1740518 16-Mar-2017 21:01
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MadEngineer: Bleach won't kill mould growing on anything other than the surface of the paint

 

 

 

I'm/was a painter not a scientist but I've treated the side of a house that was covered in red and green stuff (I call it mold) It turned yellow, then dissapeared and didn't need painting again for 18 years... seemed pretty dead to me (of course the I showed the owner what to do and they cleaned it down every year or two which helped the paint last)

 


 
 
 
 


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  Reply # 1740520 16-Mar-2017 21:12
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+1 for the sugar soap and soft brush method, can also use laundry powder in a pinch. Takes me an hour and a half for my four bedroom.


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  Reply # 1740541 16-Mar-2017 22:06
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I dislike the the extended brush with soap option because when trying to clean the soffit, water starts dripping down your sleeves and through your body. :P But I guess at the end of the day, it's gotta be done!





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  Reply # 1740543 16-Mar-2017 22:10
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UHD:

 

+1 for the sugar soap and soft brush method, can also use laundry powder in a pinch. Takes me an hour and a half for my four bedroom.

 

 

Laundry powder has an abrasive quality and leaves residue. I highly recommend NOT using it.

 

 

 

(worked in protective coatings, owns a brick house)

 

 




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  Reply # 1740544 16-Mar-2017 22:16
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I'd still like to know if anyone has used those solutions that come in bottles that you connect the hose to ... supposed to inject a metered amount into the water stream.  Bunnings seems to have a few different brands and types.


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  Reply # 1740576 17-Mar-2017 00:10
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KyleCoco:

 

MadEngineer: Bleach won't kill mould growing on anything other than the surface of the paint

 

 

 

I'm/was a painter not a scientist but I've treated the side of a house that was covered in red and green stuff (I call it mold) It turned yellow, then dissapeared and didn't need painting again for 18 years... seemed pretty dead to me (of course the I showed the owner what to do and they cleaned it down every year or two which helped the paint last)

 

 

 

Of course it "disappeared" - you bleached the colour out of it. Bleach doesn't kill mould - it just makes it invisible.





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  Reply # 1740607 17-Mar-2017 07:30
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cadman:

KyleCoco:


MadEngineer: Bleach won't kill mould growing on anything other than the surface of the paint


 


I'm/was a painter not a scientist but I've treated the side of a house that was covered in red and green stuff (I call it mold) It turned yellow, then dissapeared and didn't need painting again for 18 years... seemed pretty dead to me (of course the I showed the owner what to do and they cleaned it down every year or two which helped the paint last)

 



Of course it "disappeared" - you bleached the colour out of it. Bleach doesn't kill mould - it just makes it invisible.



Bleach does kill mold and is quite good at it. What it doesn't do is penetrate porous surfaces which is why it doesn't work to kill spores in grout or concrete. It is very effective on painted surfaces.

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  Reply # 1740631 17-Mar-2017 09:47
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As a vaguely related comment:

 

 

 

Our house exterior (concrete) was painted about 11 years ago with Dulux Weathershield. The paint has faded now a bit and needs re-doing. However one thing I noticed was that for many years after, we had almost no mould on the exterior. The last 2 or 3, as the mould inhibitors in the paint have broken down I guess, there has been a significant increase every winter that needs washing off in the spring.

 

Moral of the story is that good paint can reduce your cleaning effort for quite a while!






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  Reply # 1740634 17-Mar-2017 09:57
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The most affective method we use is a large bucket, a soft inside broom, Car wash with warm water  and a hose. Wet the wall, go over with the broom and car wash then hose off immediately. We use a water blaster on a lower setting for the spouting. Finally clean the windows before they dry to avoid streaking.





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  Reply # 1742662 17-Mar-2017 12:19
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How timely a topic. Was about to clean the outside of my house with 30 Sec Window wash but prior to washing I did an inspection and discovered this crack under the centre of the bathroom window. It appears this is where two sheets have come together to form a join.

 

The crack is only 1mm wide.

 

The cladding is HardieTex painted over with DULUX Luxaclad rolled on concrete (I think I have read the property report doc's properly).

 

How do I fix this crack?

 

 

EDIT: sorry forgot to rotate the pic - the crack is vertical





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  Reply # 1742672 17-Mar-2017 12:40
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The paints used for painting over render are usually elastomeric and cover small cracks.

 

We have this one:

 

http://www.dulux.com.au/specifier/product/coating-selector/project-details/product-list/product-details?product=2477&area=12&element=15&substrate=22&new=0&finish=6

 

But if in doubt some exterior-rate flexible sealant prior to painting should do the job.

 

 





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  Reply # 1742797 17-Mar-2017 15:12
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Handle9:
cadman:

KyleCoco:


MadEngineer: Bleach won't kill mould growing on anything other than the surface of the paint


 


I'm/was a painter not a scientist but I've treated the side of a house that was covered in red and green stuff (I call it mold) It turned yellow, then dissapeared and didn't need painting again for 18 years... seemed pretty dead to me (of course the I showed the owner what to do and they cleaned it down every year or two which helped the paint last)

 



Of course it "disappeared" - you bleached the colour out of it. Bleach doesn't kill mould - it just makes it invisible.



Bleach does kill mold and is quite good at it. What it doesn't do is penetrate porous surfaces which is why it doesn't work to kill spores in grout or concrete. It is very effective on painted surfaces.
yes, bleach can kill mould but generally if you've got it in a surface it can't be superficially removed or washed away.

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Reply # 1742972 17-Mar-2017 20:15
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MadEngineer:
Handle9:
cadman:

 

KyleCoco:

 

 

 

MadEngineer: Bleach won't kill mould growing on anything other than the surface of the paint

 

 

 

 

 

 

 

I'm/was a painter not a scientist but I've treated the side of a house that was covered in red and green stuff (I call it mold) It turned yellow, then dissapeared and didn't need painting again for 18 years... seemed pretty dead to me (of course the I showed the owner what to do and they cleaned it down every year or two which helped the paint last)

 

 

 

 

 

 

 

Of course it "disappeared" - you bleached the colour out of it. Bleach doesn't kill mould - it just makes it invisible.

 



Bleach does kill mold and is quite good at it. What it doesn't do is penetrate porous surfaces which is why it doesn't work to kill spores in grout or concrete. It is very effective on painted surfaces.
yes, bleach can kill mould but generally if you've got it in a surface it can't be superficially removed or washed away.


Hang on I thought it only made it invisble!!?? 


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  Reply # 1743416 18-Mar-2017 16:23
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