The challenge
The metal cladding of the homogenizing silo and its upper penthouse had corroded, with loosened fixings and wind fatigue. Loose sheets at that height could fall in strong wind, and water entering through the cladding threatened the raw meal process and the steelwork.
The height, curved geometry and live equipment around the silo made scaffolding impossible without stopping the plant.
Scope of works
- Rope access rigging from the silo crown, with restraint lines for vertical and curved faces
- 100% inspection of cladding, flashings, fasteners and purlins
- Removal of damaged sheets with 100% tool tethering
- Installation of new heavy-gauge profiled sheeting with sealed fasteners (EN 1090-2, EN 508-1)
- Reinforcement of flashings and seams for weather-tightness
Outcome
The silo envelope is weather-tight again and the risk of sheets detaching has been eliminated, with no interruption to homogenization. See also the marl hall roof inspection at the same plant and our industrial cladding works.
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