Case 4

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Maintenance and Diagnostics

Periodic cleaning with a brush with a stiff dry bristle brush or sponge with a high suction cloth such as a chamois. For more serious cases, efflorescence can be removed by a dilute acid followed by copious washing.

Diagnostics of Defect

  • Visual Inspection
  • Fibrescope

Probes of the Fiberscope can be inserted through the crevices to check for its defect.

  • Thermography

Thermography can be used to check for any presence of water retained in the mortar joints or behind the tiles.