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Exterior bricks are turning white!

6 replies

doglover · 12/08/2007 19:01

Recently noticed that a small patch of bricks on an exterior wall have a whitish 'bloom'. We had a water leak inside a couple of weeks ago - would this have resulted in the wall changing colour?! Our house is due to be surveyed in a fortnight and we're desperate to remedy this problem. Please help and offer any advice.

OP posts:

doglover · 12/08/2007 19:23

Anyone, please?!

OP posts:

GoingThroughChanges · 12/08/2007 19:28

Dh is a builder.

He says it usually only happens in new houses, is yours new? [new being the first year/2years] He says if it hasn't been like that for years it doesn't usually just happen.

He said you won't get rid of it. Well, you might for a couple of weeks if you wash it with brick acid but it will come back again.

You could wash it with the acid before the survey is done.. he says it won't/doesn't do it any harm, just makes it bad looking.

He says a water leak might cause it but shouldn't really be the cause.



GoingThroughChanges · 12/08/2007 19:29

He says it's the mortar that causes the whiteness. If there is any salt/calcium in the water used to mix the mortar it will cause a chemical reaction & cause the brick to turn white.


Dior · 12/08/2007 19:35

Message withdrawn


GoingThroughChanges · 12/08/2007 19:37

Yeah That's why we built with blocks & plastered


doglover · 12/08/2007 20:10

I love Mumsnet!! Thanks so much for your replies. I'll have a think about what to do.

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