Transcript Title of presentation

Sustainability Tools
Amanda Gallagher, BRE Ireland, Dublin
Contents
Sustainability Tools
• Developments & Masterplans
• Buildings
• Energy
• Materials
• Waste
• Post Occupancy Evaluation
Sustainability Issues in the Built Environment
Site
Selection
Greenfield or
Brownfield Site
Impact on Natural
Habitat
Existing
infrastructure
(roads/energy/tran
sport networks)
Proximity to
amenities and
populated areas
Economic
centres/creation
of jobs
Probability of
Flooding
Noise
Assessment
Stakeholder
Consultation
Orientation
Planning &
Design
Low Carbon Design
Placemaking &
Community
Water Conservation
Life Cycle Costing
Fitness for Purpose
Lighting
Heating
Ventilation
Infrastructure
Travel Plans
Material
Specification
Site Ecology &
Landscape Design
Flood Risk
Prevention
Polluting Chemicals
and Substances
Construction
Construction Site
Impacts
• Site Waste Management
• Energy & Water Use
• Transport Emissions
• Dust & Pollution
Building
Operation
Commissioning
and Building
Handover
Building User
Guide
Energy Use
Demolition
Recyclable
Materials
Demolition Audits
Disposal of
Materials
Water Use
Avoiding
obsolescence
Maintainability
Flexibility
Sustainable Materials
Durability
Recycled Aggregates
User Controls
Hazardous
Materials
Local
Labour/Workforce
Occupant
Satisfaction
Considerate
Constructors
Occupant
Productivity (non
domestic
buildings)
Acoustic
Performance
Why do we need specific guidance on sustainability?
• Definitions are not always that helpful in practice:
– Sustainable buildings definition (SBTG):
“…as small an eco-footprint as possible, economic to run over its whole life cycle
and fits well with the needs of the local community”
• Need to define what you want to achieve in your context
• Education, training and awareness raising
• Means of assessing design options and applications
• Level playing field for developers
• Showing the future direction of policy
How can sustainability tools help?
• Developers / architects / design teams:
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What is the range of issues to consider?
How are they linked together?
What standards and advice are out there?
What might decision makers expect?
What does good practice look like – marketing opportunities?
How can I do more – simple “wins”?
What might I have to consider in the future?
Sustainability Assessment Tools
Development
Tools
• Masterplanning/Developments
– Sustainability Checklists
– Greenprint
– BREEAM Communities
• Buildings
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BREEAM/Code for Sustainable Homes
LEED/Greenstar
Energy (SBEM/SAP, PHPP etc. etc.)
Environmental Design and Life Cycle Assessment Tool (ENVEST)
Materials (Environmental Profiles & Green Guide to Specification)
Construction site waste (Smart Waste)
• Post Occupancy Evaluation
Sustainability in Masterplans & Developments.
• Sustainability Checklists for Developments
• Greenprint
• BREEAM Communities
What can Sustainability Checklists cover?
• Site choice
– Greenfield, destruction of natural habitat
• Development design and layout
– Regional Sustainability Checklists / Climate Change Tool kits / DQIs
• Individual building performance
– BREEAM / Ecohomes
• Elements of construction process
– ICE Demolition Protocol
• Procurement
– The OGC Achieving Excellence Procurement Guide
• Post-build operation and management
– BRE/Carbon Trust / EST guides
… and any combination!
Scored sustainability checklist - question:
Objective
To ensure that roof space is used productively to minimise water demand and manage water run-off on the site.
Question 1.4 (2)
What percentage of the total roof area in the development is designed to allow the harvesting of rain water for re-use and/or is covered by
green roofs?
Targets
Minimum
See relevant local planning authority standard for minimum
required.
Good
practice
50% of the roof area used for rainwater harvesting or green
roofs
Best
practice
More than 50% of the roof area used for rainwater
harvesting or green roofs; captured water used for irrigation
and /or toilet flushing and/or washing machines
Mark for target reached:
1
2
3
Minimum
not met
0
Considered not applicable for this application:
0
(a) mark awarded for this question:
(b) Question weighting:
Total Question score: (a) x (b):
Justification
Link s to the
RSS/ IRF
RSS) CC2 Climate Change, CC3 Resource use
0.4
0
What we have learned in other work:
• Checklists are an increasingly common approach.
• SEEDA/BRE regional checklist recognised as part of the Sustainable
Communities agenda – Egan Commission and SBTG recommended
that it should be rolled out to all regions in England (extensive tailoring
now underway in each region).
• Developers will not fill them in unless required to – must be a level
playing field.
• Need to quantify what you want – or specify a process. Ecobuild
conference reiterated this from both architects and developers. Level
playing field issue again.
• Minimum, good and best practice scoring enable higher standards to
be easily specified for more sensitive sites.
GreenPrint - Bringing it all together
Climate Change
Buildings
Resources
Community
Transport
Placemaking
Ecology
Business
What is GreenPrint?
• Methodology to maximise the
potential for sustainable communities
• Workshop led approach involving the
whole stakeholder team
• Bespoke – can be tailored to
individual client needs
• Sets out clear understandable
sustainability objectives and
benchmarks
• Prioritises sustainability issues most
important to a development
• Independent appraisal of final plans
• Provides an overall GreenPrint Score
and Rating
BREEAM Communities
• Similar to Greenprint but ‘fixed’ criteria. Not Bespoke
• Awarded a BREEAM Rating and certified by the BREEAM
Office.
• Planning tool for developers and local authorities.
• Measures: –
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Climate Change & Energy
Community
Placemaking
Buildings
Transport and movement
Ecology
Resources
Business
Buildings
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BREEAM
Code for Sustainable Homes
LEED
Greenstar
What is BREEAM?
• BRE Environmental Assessment Method
• Certification scheme
• Measure of sustainability
• Independent & credible
• Holistic
• Customer focused
• Credits and evidence based
BREEAM Categories
• Health and
Wellbeing
• Management
• Transport
• Energy
• Materials
• Water
• Waste
• Land Use and
Ecology
• Pollution
Scoring
• Management
• Water
• Materials
• Waste
• Land Use and
Ecology
• Pollution
Single Score
• Transport
Environmental Weightings
• Energy
Category Scores
Assessment Issues
• Health and
Wellbeing
BREEAM
Score
PASS
GOOD
VERY GOOD
EXCELLENT
OUTSTANDING
30%
45%
55%
70%
85%
Mandatory Credits (Minimum Standards)
• Aims:
– To avoid that a building achieves an Excellent
rating, but does not achieve compliance with
straightforward BREEAM issues e.g. storage of
recyclable waste or installation of a water meter.
– Comparability across different schemes and
BREEAM buildings
• The higher the BREEAM rating the more
mandatory requirements there are and
progressively harder they become.
Innovation Credits
•
Additional recognition for ‘innovation in the field of
sustainable performance’, above and beyond what is
currently recognised and rewarded in BREEAM
•
Two ways of obtaining Innovation Credits:
1. By meeting exemplary level performance requirements for an
existing BREEAM issue
2. Where an application is made to BRE Global to have a particular
building feature or process recognised as ‘innovative’
BREEAM 2008
2008 BREEAM Manuals
available on the BREEAM Website
http://www.breeam.org
Code for Sustainable Homes
• The Code for Sustainable Homes is an environmental assessment
method for rating and certifying the performance of new homes
• Assessment is a two stage process – design and post construction
• The Code provides an all-round measure of sustainability against
nine categories of sustainable design
• A Code rating became mandatory for all new build homes from 1st
May 2008 and has been operational in England since April 2007
– A code assessment results in a rating of between 1 and 6 and a certificate is
provided with the dwelling
– Non-assessed dwellings will be accompanied by a nil-rated certificate
Mandatory Performance Levels
• The Code covers nine categories of sustainable design
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Energy/CO2
Water
Materials
Surface Water Runoff
Waste
Pollution
Health and Wellbeing
Management
Ecology
• Six of these contain mandatory performance levels
• Energy and Water have increasing minimum standards for each Code
level
Mandatory Performance Standards
• Entry Level requirements for:
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Energy
Water
Materials
Surface Water run-off
Waste
Failure to meet the mandatory requirements will result in a zero rating
BREEAM International
UK
Rep. Ireland
The Netherlands
Denmark
Poland
Norway
Turkey
Iceland
Romania
Spain
Sweden
Israel
Abu Dhabi
Algiers
Dubai
Czech Republic
France
Germany
Hungary
Italy
Luxembourg
Lebanon
Malaysia
Morocco
Belgium
Switzerland
Philippines
Poland
Qatar
Romania
USA
LEED
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US Green Building Council
Green Building Certification Scheme
Credit based Assessment Method
Awards performance in
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Sustainable Sites
Water Efficiency
Energy & Atmosphere
Materials & Resources
Indoor Environmental Quality
Locations & Linkages
Awareness & Education
Innovation in Design
Regional Priority
Greenstar
• Green Building Council Australia (GBCA)
• Environmental Rating System for Buildings in Australia
• Measures: –
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Management
Indoor Environment Quality
Energy
Transport
Water
Materials
Land Use & Ecology
Emissions
Innovation
Energy
• SBEM
• SAP
• Passive House Planning Package (PHPP)
SBEM
SAP
PassivHaus – the technical definition
• The design heat load is limited to the load that can be transported by
the minimum required ventilation air
10 W/m2 heating load calculation is quite simple:
1 m³/(m²h) × 30 °C × 0.33 Wh/(m³K) = 10 W/m²
minimum ventilation rate of
0.4 ac/h is required for
indoor air quality, that
results in at least 1 m³/(m²h)
being delivered by the
ventilation system
maximum heat input
provided via the
fresh incoming air
specific heat
capacity of the air
Passivhaus Planning Package (PHPP)
ENVEST 2
• Environmental Design & Life Cycle Assessment Tool
• Whole Life Costing
– Environmental Design Vs Financial Impact
• Predicts Environmental Impact
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Materials
Heating
Cooling
Building Operation
Materials : Measuring environmental impact
SMARTWaste
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Waste benchmarking
Waste reduction
Pre-demolition audit
Reuse and recycling site locator
Related training, consultancy and guidance
Post Occupancy Evaluation – Measuring Sustainability
Post Construction
Energy, water and sustainability audits
– Monitoring and recording consumption levels to allow benchmarking
BREEAM assessments
– Determining if design stage commitments have been made
Design Quality Method
– Evaluating architecture, environmental engineering, user comfort, whole
life costs, detail design and user satisfaction
Occupant experience
– Questionnaires, focus groups and interviews to examine how the
occupants interact with the building
Financial analysis
– Cost benefit analysis
Further Information
• South East of England Development Agency Example
Checklist on line - http://www.sustainabilitychecklist.co.uk/index-17.htm
• BREEAM and Ecohomes www.breeam.org/
• Regional Sustainablity Checklist for developments
www.wwf.org.uk/filelibrary/pdf/regsust_checklist.pdf