Stock Photo - A white powdery deposit, called efflorescence is common on new brick walls. It is caused by salts in the bricks reacting with rain-water as soluble salts are transported to the surface of the brickwork by water. Persistent efflorescence should be taken as a warning that water is entering the wall through faulty copings, damp-proof courses or pipes.

Stock Photo: A white powdery deposit, called efflorescence is common on new brick walls. It is caused by salts in the bricks reacting with rain-water as soluble salts are.

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