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Designing for Resource Efficiency. WasteMINZ conference Christchurch 14 – 16 October 2009 Presented by: Lisa Eve. Less waste, sharper design. reducing construction waste through design. Introduction. UK Construction Waste single largest waste stream 400 million tonnes of material - PowerPoint PPT Presentation
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Designing for Resource EfficiencyWasteMINZ conferenceChristchurch14 – 16 October 2009
Presented by: Lisa Eve
Less waste, sharper designreducing construction wastethrough design
Introduction
UK Construction Waste−single largest waste stream−400 million tonnes of material−120 million tonnes of waste−60 million tonnes recycled−single largest producer of hazardous waste−Action led by WRAP−National legislation−Sustainable Construction Strategy 2008−50% reduction by 2012
Quick comparison to New ZealandNZ Construction Waste−“a large source of waste”−20% of landfill, 80% of cleanfill?−Identified as a priority waste−50% reduction by 2008−MfE – REBRI−BRANZ−Green Building Council−No national legislation−No recent target
What is WRAP?
Waste & Resources Action Programmegovernment funded, not for profit organisation
“ WRAP works with local authorities, business and households to prevent waste, increase recycling and develop markets for recycled and sustainable products.
It is our aim to create the case for change, support change and deliver change. “
leads action in many waste sectors, including construction
WRAP in construction
WRAP works with …
−Clients
−Designers
−Contractors
−Suppliers
−Waste collectors & processors
The Construction Commitments:Halving Waste to Landfill
− create design solutions that minimise waste and
use resources efficiently;
− identify for clients and contractors the best
opportunities to reduce waste and use more
recovered material;
− measure the potential improvement at project
level;
− support teams in broadening their knowledge of
resource efficient design; and
− report annually on overall corporate performance.
designers’ actions
Why take action?
Finance Achieve real cost
reductions
Reputation Achieve clear market
recognition
Environment Demonstrate clear
environmental credentials
Policy Contribute to
strategic objectives
Why take action?
−Exemplar projects
Case studies
−Design review methodology
−Design team guide
DfRE programme : so far
The 5 DfRE principles
Five Principles
Design for :
1. Reuse and recovery
2. Off site construction
3. Material optimisation
4. Waste efficient procurement
5. Deconstruction & flexibility
Design for reuse and recovery
Key questions
−Can materials from demolition be reused in the design?
−Can reclaimed products or components be reused?
−Can materials be reused at their highest value?
−Can excavation materials be reused?
−Can cut and fill balance be achieved?How can it be optimised to avoid spoil removal from site? reuse & recovery
Design for off-site construction
Key Questions
−Can any part of the design be manufactured off site?
−Can site activities become a process of assembly rather than construction?
off site construction
Design for materials optimisation
Key questions
−Can the design, form and layout be simplified?
−Can the design be coordinated to minimise excess cutting and jointing?
−Is the building designed to standard material dimensions?
−Can the range of materials required be standardised to encourage reuse of off-cuts?
−Is there repetition and coordination of design to reduce number of variables?
materials optimisation
Design for waste efficient procurement
Key questions
−Has research been carried out by the Design Team to identify where onsite waste arises?
−Have specialist contractors been consulted on how to reduce waste in the supply chain?
−Have the project specifications been reviewed to select elements / components / materials and construction processes that reduce waste?
waste efficient procurement
Design for deconstruction and flexibility
Key questions
−Is the design adaptable for a variety of purposes during its life span?
−Does the design incorporate reusable/recyclable components and materials?
−Are the building elements/components/materials easily disassembled?
deconstruction & flexibility
The design review methodology
Design Review Methodology
−Use existing design team meetings
−RIBA stage C
−Facilitated workshop
−Review
−basic methodology outlined
−more detailed methodology in development
Design Review Methodology – reasoning session
Implementation
Impact on waste
reduction
difficult easy
high
low
Design Review Methodology – next steps
next steps
−Decide on options - prioritise
−Allocate responsibilities
−Review at meetings
−Record in Site Waste Management Plan
Other Tools and Resources
−Achieving effective waste minimisation
Other Tools and Resources
−Achieving effective waste minimisation
−Design Team Guide
Other Tools and Resources
Other Tools and Resources
−Achieving effective waste minimisation
−Design Team Guide
−Case Studies
Other Tools and Resources
Other Tools and Resources
−Achieving effective waste minimisation
−Design Team Guide
−Case Studies
−Net Waste Tool
Other Tools and Resources
−Achieving effective waste minimisation
−Design Team Guide
−Case Studies
−Net Waste Tool
−Achieving good practice in regeneration projects
Other Tools and Resources
−Achieving good practice in regeneration projects
−Recycled Products Guide
Other Tools and Resources
−Achieving good practice in regeneration projects
−Recycled Products Guide
−‘Rules of Thumb’
Other Tools and Resources
−Achieving good practice in regeneration projects
−Recycled Products Guide
−‘Rules of Thumb’
−Site Waste Management Plan Template
Other Tools and Resources
wrap.org.uk/construction
Summary
- Background to reducing waste to landfill
- Designers’ key role
- Integral part of sustainable construction
- Five principles
- Practical application
- Tools and resources
- More detailed assessment methodology in development – to become a ‘tool’
Contact Details
Lisa EveEunomia Research & [email protected]
Office: +64 7 308 5336www.eunomia-consulting.co.nz
