recycled content in construction of education facilities 8 december 2006 xxxxxxxxxx
TRANSCRIPT
Recycled content in construction of education facilities
8 December 2006XXXXXXXXXX
Outline
About WRAP Materials resource efficiency in construction Case studies WRAP resources Discussion – Q&A
Reduce raw
material use
Reduce waste
Materials efficiency
Reduce landfill
Recycling / compostingSave
resources
Materials with recycled content
A two thirds reduction in consumption of fossil fuels and virgin materials is needed to achieve a sustainable and globally equitable level
WWF – “One planet living study” - 2004
WRAP’s construction focus
construction waste minimisation and management
construction materials recycling
construction procurement (RC requirements)
“Helping the construction industry cut costs and increase efficiency through the better use of materials”
M tonnes
Quantity of construction and demolition waste generated (~90 Mt per year)
Waste construction materials that are recycled (~45 Mt per year)
Materials efficiency in construction
Overall material consumption by construction industry (~420 Mt per year)
M tonnes
Quantity of construction and demolition waste generated (~90 Mt per year)
Waste construction materials that are recycled (~45 Mt per year)
Materials efficiency in construction
Materials Efficiency as part of Sustainable Construction Sustainability goals
Energy Materials Water
Waste avoidance and minimisation
Segregation and recycling
Returning surplus materials
Specification of materials with low enviro. impact
Use products with high recycled content
Using local construction and demolition waste
Material selection
Waste managemen
t
Min
imis
ing
en
vir
on
men
tal
dam
ag
e
Effi
cie
nt
use o
f fi
nit
e
natu
ral
mate
rials
Use renewable materials from sustainable sources
Why require recycled content?
Practical way of making a difference
Cost neutral with potential for cost saving
Simple way of measuring achievement
Setting procurement requirements delivers tangible benefits cost neutral with the potential for cost saving
reduces burden on landfill sites
stimulates market for recovered materials
reduces demand for finite natural resources
reduces carbon emissions
Scottish ExecutivePolicy Commitment
2003 2004 2005 2006
OGC-AE11SBTG
Govt. Sustainable Procurement Group
ODPM-PPS1
Code for Sustainable Homes
EU Landfill Directive and UK Landfill Tax (1990s)
Increasing thrust of sustainability policy
Scottish ExecutiveMinister’s letter
Secure & Sustainable Buildings Act
NI Central Procurement Directorate
Clean Neighbourhoods & Environment Act
Aggregate Levy
Sustainable Procurement Task Force
Policy drivers
2007
Embedded in public policy Scottish ExecutiveMinister for Environment & Rural Development has written to all public
sector bodies requesting contracts to include requirements for RC in
constructionprojects and procurement of printing, writing paper and tissue products
Partnership for a Better ScotlandThe Partnership Agreement contains a commitment to:“use the public purchasing rules to enhance the status of recycled goods
andthose capable of reuse”
A number of public bodies in Scotland have already set RC requirements, including: Glasgow City Council (as a policy for all its major construction
projects) Aberdeen City Council (schools project) Raploch Urban Regeneration Company Dundee City Council (waste infrastructure project) South Ayrshire Council (schools project)
Tota
l p
roje
ct
mate
rials
cost
(£)
Recycled content (%)
A cost neutral opportunity
Best
Standard
Good
Which of these products contain recycled content?
>50%
100%>80%
Lightweight block Plasterboard
Glasswool Aggregates
84%
Which concrete block has the highest recycled content?
>50%
>25% ~5%
~55%
Examples of mainstream products
Product type
Optionwith lower
recycled content
Option with higher recycled content
Dense block 0%Hanson Conbloc
Up to 70%
Wall insulation 0%Superglass Superwall Cavity Slab
>80%
Concrete roof tile 0%Lafarge – various, e.g. Grovebury
17%
Ceiling tiles >10%Armstrong – various
28-52%
Intermediate floors,e.g. timber
50-70%Sonae – Sonaefloor
90-95%
Floor coverings – safety
0%BSW Regupol Everroll rubber
flooring80%
Cost and performance
mainstream products familiar manufacturers products already in use readily available reassuring to trades
www.wrap.org.uk/downloads/Construction_product_guide_Version_2.efcacd0c.pdf
Case study – Primary school
Glasgow, 2004
Opportunities to increase recycled content:
plasterboard concrete paving slabs fencing flooring pipe bedding insulation ceiling tiles concrete kerb stones lightweight block.
Use of recycled content (as a % of total value of materials):
standard practice: 20% achievable with top three
product substitutions: 24% good practice at no extra
project cost: 27%
Queens University, 2006
Opportunities to increase recycled content:
dense block work carpet tiles low strength concrete hardcore plasterboard.
Use of recycled content (as a % of total value of materials):
base case: 15% readily achievable
at equivalent cost: 25% maximum achievable but at
extra cost: 37%
Case study – University Halls of Residence
London, 2005
Detailed analysis of three exemplar school designs
Potential for a ten-fold increase in the use of recovered materials, potentially diverting an additional 3,000-4,000 tonnes from landfill for each school.
Case study – Exemplar designs of secondary schools
Use of recycled content (as a % of total value of materials):
standard practice: 13 to 16%
good practice at no extra project cost: 16 to 21%
A 10% minimum requirement is readily achievable
Type of projectBaseline/actual
practiceCost neutral
good practice
Detached/terraced house
6 - 26% 16 - 29%
Commercial office 10* - 22% 12* - 30%
School, hospital 12* - 20% 15* - 27%
Road reconstruction 8 - 16% 27 - 29%
Bridge reconstruction
18 - 23% 33 - 49%
* Excluding building services
Who is taking action?Glasgow City CouncilAberdeen City CouncilDundee City CouncilNewcastle City CouncilSolihull MBCSheffield City CouncilBritish LandBristol City CouncilWelsh Health EstatesGreater London AuthorityNorthern Ireland Procurement DirectorateDefence Estates Lancashire County CouncilBuilding Schools for the Future (BSF)National GridRaploch Urban Regeneration CompanySkanskaScottish ExecutiveNOMSLeeds Metropolitan University
…and many more
Taking action - EducationBuilding Schools for the Future minimum threshold for
recycled content in model Output Specification
Bradford University minimum recycled content
requirement in refurbishment programme
Leeds Metropolitan University corporate policy for minimum
requirement for new buildings
Recommended wording
‘….at least 10% of the total value of materials used should derive from recycled and reused content in the products and materials selected.
In addition, show that the most significant opportunities to increase the value of materials derived from recycled and reused content have been considered, such as the top ten Quick Wins or equivalent, and implement good practice where technically and commercially viable.’
Client sets requirement
e.g. “10% recycled content by value plus evidence of good
practice”
Design team estimates baseline
e.g. X% as baseline practice and identify candidate top 5-10 Quick
Wins
Estimate the projected outcome
X% baseline practice plus Y% contribution from selected Quick
Wins(Design team and contractor)
Implement the Quick Wins
Contractor and subcontractors
Verification
Client can check for simple evidence that Quick Wins were
used
Potential for local re-use and recycling of
materials from on-site CDW and nearby
demolition
Available manufactured
products with higher recycled content, plus
reclaimed products
Contractor selects Quick Wins, consulting
with suppliers, subcontractors, design
team and client where necessary
Review of Quick Wins
Selection of Quick Wins
Identifying higherrecycled content opportunities
PROCESS MAP
Support availableWRAP have prepared a comprehensive
support package covering:
– exemplar wording for pre-qualification questionnaires, briefs and contracts.
– on-line recycled content toolkits for calculating performance and opportunities.
– reference guides identifying specific products with higher levels of recycled content.
– case studies covering all types of construction.
www.wrap.org.uk/construction/construction_procurement/index.html
The recycled content toolkit calculates the recycled content
baseline identifies the largest Quick Win
opportunities, using information on:– basic dimensions– key design specifications
provides pre-formatted performance reports.
Summary increasing recycled content has a tangible impact on resource
efficiency
setting a requirement is easy to do
no impact on: – cost– design or specification– quality– other project goals
WRAP support for:– policy and project wording– calculating recycled content– identifying products
a quantifiable, demonstrable contribution to a sustainability or CSR strategy.