Designing for Resource Efficiency

2. Designing for Resource Efficiency • WasteMINZ conference • Christchurch • 14 – 16 October 2009 • Presented by: • Lisa Eve

3. Less waste, sharper design reducing construction waste through design

4. 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

5. Quick comparison to New Zealand • NZ 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

6. What is WRAP? • Waste & Resources Action Programme government 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

7. WRAP in construction WRAP works with … • Clients • Designers • Contractors • Suppliers • Waste collectors & processors

8. 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

9. Why take action? Reputation Achieve clear market recognition Finance Achieve real cost reductions Environment Demonstrate clear environmental credentials Policy Contribute tostrategic objectives

10. Why take action? • Exemplar projects Case studies • Design review methodology • Design team guide DfRE programme : so far

11. The 5 DfRE principles

12. Five Principles Design for : • Reuse and recovery • Off site construction • Material optimisation • Waste efficient procurement • Deconstruction & flexibility

13. Design for reuse and recovery

14. 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

15. Design for off-site construction

16. 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

17. Design for materials optimisation

18. 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

19. Design for waste efficient procurement

20. 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

21. Design for deconstruction and flexibility

22. 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

23. The design review methodology

24. Design Review Methodology • Use existing design team meetings • RIBA stage C • Facilitated workshop • Review • basic methodology outlined • more detailed methodology in development

25. Design Review Methodology – reasoning session Impact on waste reduction high low difficult easy Implementation

26. Design Review Methodology – next steps next steps • Decide on options - prioritise • Allocate responsibilities • Review at meetings • Record in Site Waste Management Plan

27. Other Tools and Resources • Achieving effective waste minimisation

28. Other Tools and Resources • Achieving effective waste minimisation • Design Team Guide

29. Other Tools and Resources

30. Other Tools and Resources • Achieving effective waste minimisation • Design Team Guide • Case Studies

31. Other Tools and Resources

32. Other Tools and Resources • Achieving effective waste minimisation • Design Team Guide • Case Studies • Net Waste Tool

33. Other Tools and Resources • Achieving effective waste minimisation • Design Team Guide • Case Studies • Net Waste Tool • Achieving good practice in regeneration projects

34. Other Tools and Resources • Achieving good practice in regeneration projects • Recycled Products Guide

35. Other Tools and Resources • Achieving good practice in regeneration projects • Recycled Products Guide • ‘Rules of Thumb’

36. Other Tools and Resources • Achieving good practice in regeneration projects • Recycled Products Guide • ‘Rules of Thumb’ • Site Waste Management Plan Template

37. Other Tools and Resources wrap.org.uk/construction

38. 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’

40. Contact Details Lisa Eve Eunomia Research & Consulting lisa@eunomia-consulting.co.nz Office: +64 7 308 5336 www.eunomia-consulting.co.nz