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What causes this white colour on red?

  • 16-02-2019 05:46PM
    #1
    Registered Users, Registered Users 2 Posts: 1,333 ✭✭✭


    What causes this white colour on red brick?

    This is a new wall less than 24 months old. Is there any way of avoiding it?

    I've tried power hosing it on a different red brick wall before and it came off some what. But that wall had 25 years or so years of service before it started to come out in a marked way.


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