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    7. Review of Common Steel Corrosion Problems
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    Contents

    7. Review of Common Steel Corrosion Problems

    • 1 Minute to read
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    Article summary

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    Above - Units located on the beach - salt air blows through the unit and becomes lodged at "choke" point like this door frame - Unit is air-conditioned - so at the door junction (where the salt has been deposited) - COLD unit air meets the outside WARM humid air and condensation forms - door rust.
    Solution - regularly remove the salt be leaning the door, frame, rebate and furniture.

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    Above - SAME development but in a unit that had BAT WING smoke seals which STOP CONDENDATION forming - no probelm at all.
    Consideration - fit $20 seals to all similar doors in the future to avoid $300 per door rectification.
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    Above – painted steel awning structure – located on the beach - rusting
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    Above - painted steel awning structure
    Located on the beach - rusting
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    Above - ALUMNIUM awning structure near the beach
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    Above - marina structure in cyclonic area
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    Solution - Structural grade aluminium
    Problem - steel baseplates 10m from the ocean and on the balcony of $2m apartments
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    Solution –

    1. Waterproof membrane the baseplate and column to a set RL.
    2. Non shrink grout to set RL.
    3. Prime and waterproof (cementious) membrane over entire base
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      FINISHED
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      Problem – aluminium shutter with steel stiffening bar inserted in the bottom rail for strength.
      Solution – change profile of door for an aluminium only bottom rail (“C” section to take lateral wind loads)
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      Problem – structural steel connections “in-ground”
      Solution – waterproof over steel and enclose in concrete
      (To protect membrane from damage by lawn care equipment)
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    Above – marine environment
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    Above –
    • Hot dipped galvanised structure.
    • Baseplates membrane and protected (see previous photo’s).
    • Powder-coated aluminium balustrades and sunshades.
    • Stainless (316 grade) ceiling fans.
    • Aluminium lights. PVC is also preferred.
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    Above – this should be below the tiled finish and waterproofed – currently in a situation where it cannot be properly protected, is ugly and water will pond on it.
    Unacceptable .

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