Mitigating Composite Pain 1. What are my reporting requirements 2. - - PowerPoint PPT Presentation

Mitigating Composite Pain

MCP OVERVIEW

• 1. What are my reporting requirements
• 2. Why are we here
• 3. Make Safe – Short term
• 4. Remediation – Cost Mitigation
• 5. Project Delivery

WHY ARE WE HERE?

A Brief History of Combustible Cladding Fires ▪ ACP Flame Spread: Vertical – Up and Down ▪ Impacts to Surrounding Structures and Elements ▪ Chimney Effect ▪ Petrochemical cladding

• 24 storey building that burned for 60 hours
• Fire fighters onsite in 6 minutes
• Fire spread quickly up and around external facade of building
• Combination of factors resulting in over 80 deaths
• Renovations undertaken in 2016 included installing cladding to the building
• An alternate cladding panel was rejected due to cost

Grenfell Tower

London

Lacrosse Building

Melbourne

The product eventually identified was a non-compliant product ‘Alucobest’ which by visual inspection is indistinguishable from other compliant products such as ‘Alucobond Plus’

CYBER TOWERS BANGKOK

OTHER CASES

MLB (2014)

ACP REPORTING REQUIREMENTS

1. Self assessment-notification to QBCC: 29/3/19 2. Determination of type and risk assessment: 29/5/19 3. Fire safety risk assessment: FE 27/8/19 – 3/5/21 1. >30% Polyethylene ACP Banned 10/2018 2. Building registration CTF 22/2/19 3. Withdrawal of CodeMark Certificates 02/19 4. ACP Inspection and determination 5. Building may be subject to fire order 1. Ban on ‘high risk cladding’ 2. State-wide Audit of 1269 Buildings with ACP 3. Show Cause notices issued to 150 Buildings 4. >High risk buildings 275 1. Sate wide audit 1734 Buildings 2. Risk assessments on 298 Buildings 3. Building Permit Authority requires remedial action

• n 31 Buildings

PROJECT DELIVERY

• Short Term Make Safe
• Intrusive Investigation
• Planning
• Design
• Material selection
• Remediation
• Certification

Engage a professional to asses cladding zones: confirm high risk areas and remediation works

• Short Term Make Safe Actions / Risk Mitigation
• These works are undertaken to mitigate risk associated with potential ignition sources for

combustible cladding

• Cost Mitigation Activities
• Undertake Intrusive investigations of your cladding
• What is behind it
• What is the substrate condition like
• Am I able to reuse the subframe system
• Are there other non-compliant materials
• Assess the condition and performance of:
• Thermal insulation
• Window performance and condition
• The more background detail you are able to ascertain will facilitate your ability to corral the

remedial cost exposure

REMEDIATION: Assessment

• Where to does my cost exposure lie
• Replacement Material Selection: 20-35%
• Design: 5-10%
• Access and Installation: 45-60%
• Certification: 5-15%
• Delivery Cost Mitigation Activities
• Preplanning:
• Use the knowledge gained from your earlier investigations
• Have a developed scope and specification in place for tender
• Are there other remediation works that could be combined into the programme: ie.

Is commercial benefit in improving the underlying Thermal and Acoustic performance of the façade

• The longer the duration on the site, the more prolonged your risk exposure

REMEDIATION: Works Delivery

ACCESS SYSTEMS

• Mast Climber
• Scaffolding
• Elevated Work Platforms (EWP)
• Boom lifts
• Scissor Lifts
• Rope Access
• Swing Stage
• Building Maintenance Units (BMU)

TYPICAL OPTIONS:

DtS Replacement Cladding: AS 1530.1

• Solid 3mm or 4mm Solid Aluminium Plate
• High Performance Composites (Honeycomb Core)
• Patinated Zinc
• Patinated Copper
• Glassfibre Reinforced Concrete (GRC)

MATERIAL OPTIONS:

DESIGN CONTRACTOR ENGAGEMENT CERTIFICATION

Design Considerations

• Is there Benefit/Requirement in Architectural engagement
• Cladding Replacement: visual like for like or alter the architectural aspect
• DA considerations: Does a fire order impact on a potential DA application
• Does the project quantum warrant 3D modelling

Contractor Engagement

• Who will manage the process: Tender(s), Project Management, Sub-Contractor Selection
• Project Monitoring / Reporting Cycles / Community & Stakeholder Liaison
• Works Verification Procedures: Clear and concise, understand the procedure to deal with ‘issues’

Certification and Statutory Submittals

• How to minimise your certification processes: Early engagement is key
• Clear and defined design verification processes
• Material selection: DtS is Recommended / Advised / Counseled / Beseeched

THANK YOU

Core was founded with an adventurous spirit, with the vision to lead our industry to higher standards of engineering.

EVERY PROJECT, EVERY BUILDING, EVERY DAY.

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ENGINEERS