Case 2

Maintenance and Diagnostics

Structural sealants should also be checked during maintenance and cleaning works for signs of deterioration and allowing possible entry of water and air.

Diagnostics of Defect

Visual Inspection

Visual assessment of the curtain wall during rainy days may the localised areas where water is found to penetrate.

Fibrescope

The building structure can also be checked for movement to reveal areas that are stressed and causing cracks or gaps to appear. This can be done by inserting probes of the Fiberscope to inspect connecting condition behind external cladding wall of a building.

To detect water penetration through window joints for curtain walls, a Water Tightness Test can be conducted on the completed wall. The test simulates rain water impinging the wall under wind forces.