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2026 Regulatory Review

Demolition Safety Guide: Structural Engineer Surveys, Rubble Chutes & Asbestos Controls

By Dr. Thomas Sterling, CSP (Senior WHS Auditor & Compliance Specialist)
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Published: Oct 08, 2026
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9 min read

Key Regulatory Takeaways

  • Execute structural engineering load surveys before positioning machinery on slabs.
  • Demolish strictly floor-by-floor from top to bottom (never remove lower load walls first).
  • Verify physical air-gap disconnection of all municipal utilities.
  • Deploy continuous mist water cannons for silica and dust suppression.

Controlling Structural and Chemical Hazards in Demolition

Demolition is inherently high-risk. Before bringing in heavy excavators with shear attachments, contractors must verify that the structure will not suffer premature catastrophic collapse.

1. Pre-Demolition Engineering Audits

A certified structural engineer must document the sequential dismantling plan (AS 2601) and establish the Safe Working Load (SWL) for mini-excavators operating on suspended slabs.

2. Utility Air-Gapping

All live electrical, gas, water, and data services must be physically disconnected and air-gapped before demolition commences.

3. Dust & Asbestos Abatement

Use high-pressure water mist cannons for continuous silica suppression and conduct NATA-accredited asbestos clearance before general building knockdown.

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