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Powder on bricks

Posted by Ruth Cavanagh, on Fri 11 Apr 2014 07:59pm

What is causing some of my housebricks to be covered in a white powder-house 17 years old

David Halliday

Fri 11 Apr 2014 08:50pm

Hi Ruth, The white powder is soluable salt it is caused when the building is wet then drys. It is either been cast into your bricks at the time of manufacture or in the sand. It's technical term is called efflorescence. Dave

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Jason Rozario

Sat 12 Apr 2014 09:10am

Hi Ruth, Common causes are lime/ salt in the mortar ,it's quite common in new builds and very difficult to control. Regards Jason Edifice Projects

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