BREEAM An Environmental Ratings Methodology. Individual Buildings. Sustainability Balance. What is BREEAM? So what does BREEAM aim to achieve?

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1 The use of ratings checklists to meet the requirements of the Energy Performance of Buildings Directive? Experience from BREEAM BREEAM An Environmental Ratings Methodology Alan Yates Group Leader, BREEAM Team Principal Consultant Centre for Sustainable Construction What is BREEAM How does it operate Experience of developing assessment criteria Can this be translated to the requirements of the Directive? Sustainability Balance Individual Buildings Severe Environmental Impacts Social Success Economic Success Sustainable Development Economic Loss Severe Social Damage Minimal Environmental Impacts Holistic evaluation of impacts Based on practicable and effective actions Design auditing Performance specification Accepted industry standards Evaluation of standard specifications and small groups of buildings What is BREEAM? Simple and effective tool for specifying environmental performance Covers new build, refurbishment and existing buildings Benchmarks and checklists performance Effective tool for dialogue between client and designer / property manager Increasingly being specified by clients Independent and credible audit So what does BREEAM aim to achieve? Recognise best practice Illustrate environmental benefits to stakeholders and clients Provide a comprehensive method of measuring and monitoring environmental performance Considers all aspects of sustainability i.e. environmental, social and economic in the development of the criteria 1

2 The Building Regulations & BREEAM Scope Life Cycle Impact Project inception & brief Number of buildings Regulatory minimum High Quality Exemplar BREEAM Project design Construction Use Refurbishment Use D & P M & O Environmental Standards Dismantling/demolition /recycling BREEAM Structure Assessment Process Define the assessment scope Design & Procurement Credits Core Performance Credits Management & Operation Credits Individual credits assessed Score in each category New build and refurbishment Existing and occupied Existing vacant Apply Environmental weightings Overall BREEAM score The Credit Issues The Credit Criteria All BREEAM schemes cover the following issues: Energy Health and Wellbeing Transport Pollution Materials Water Land Use and Ecology Discrete criteria covering range of key issues Requirements to be - Practical; Achievable; Assessable; Meaningful Precise definitions to ensure consistent assessment Clear and detailed information for those assessing: Aim of the credit Compliance criteria Supporting information Background to the issue 2

3 The Credit Criteria Wide range of issues Recognise a range of achievement Basic level at or close to statutory levels Best practice levels Leading edge levels Exemplar levels Contradictory criteria Accounts for all impacts Impossible to achieve all credits Targets set at realistic levels Assessment Credits Scoring Management Health and Wellbeing Energy Transport Water Materials Land Use Ecology Pollution Issue Category Scores Environmental Weightings Single Score BREEAM Score The BREEAM environmental rating Pass Good Very Good Excellent Certificate Clear and concise certificate varies between versions Building details Details of Client Design team Constructors Ratings achieved Assessor details Assessment Process Assessment Structures Builder; Developer; Owner; Occupier Independent Licensed Assessors Development Support Strategic promotion Market Research Quality Control Pre BREEAM Consultancy Formal Assessment Certification Assessment Organisation Registered Assessor Licensed Marketing Client Liaison Assessments Related consultancy Controlled; Independent; Accessible; Consensus based 3

4 Developing Consensus The Assessment Process Advisory Groups for method development Broader consultation exercises Consultation with key industry bodies Consultation with technical experts across BRE and external Assessor consultation Not straightforward.. there is no right answer! The Credit Issues Energy Use All BREEAM schemes cover the following issues: Energy Health and Wellbeing Transport Pollution Materials Water Land Use and Ecology Identifying appropriate complexity of methods Core issues Fabric and Form Fabric Building Form Orientation Air permeability Sub metering Heating/cooling Lighting Ventilation D&P issues CO 2 emissions based CIBSE AM11 M&O issues CO 2 emissions (actuals) Energy Policy Energy Audit Disseminating energy info Energy Management Operation and Maintenance schedules Energy/CO 2 emissions The Credit Issues 1990 Checklist of energy efficiency features Limited in scope Inflexible and not adaptable Simple and easy to work with 1993 EsiCheck software Based on historical/empirical data Not transparent in operation/calculation Unable to deal with innovation 2002 Dual approach Building Fabric and Form calculator Design team dynamic modelling based on standard operational, locational defaults All BREEAM schemes cover the following issues: Energy Health and Wellbeing Transport Pollution Materials Water Land Use and Ecology Difficulty of identifying appropriate / acceptable methods 4

5 Materials Timber Labelling Materials Specification Low environmental impact Sustainable timber Recycled aggregates Reuse of: Structure Façade Other Issues Recyclable waste storage Asbestos exclusion Links to WWF, BRE, Governt. Policy Diversity of labelling schemes FSC Full chain of custody audit PEFC Limited chain of custody audit Forests Forever Trade scheme based on policy objectives and corporate commitments No monitoring Government Licence Highly variable criteria applied Non comparable Simple Ratings Schemes How do you deal with the broad range of building types out there? Building Function Location Scale Construction / Servicing strategies BREEAM Aims to be capable of assessing all building types at all stages of their life. Standard Schemes for commonly encountered building types Bespoke versions for one-off building types BREEAM Schemes Existing schemes: BREEAM for Offices (BCO; BPF; EP; GONE) EcoHomes (NHBC; HC; EP; SEEDA; WWF; GONE) BREEAM Industrial (EP; WDA; BPF; GONE) NEAT (BREEAM for NHS) (NHS Estates) Bespoke Schemes (for mixed use buildings) MOD (Allenby/Conaught, SLAM, PRIME) DWP (JobCentre Plus; Pensions/Debt Collection) EP; GONE; etc Under development: BREEAM Retail (BRC; BCSC) BREEAM for Schools (DfES) Simple Ratings Schemes How do you deal with the broad range of building types out there? Building Function Location Scale Construction / Servicing strategies CEEQUAL Similar problem Followed process evaluation route May not meet the EU objectives of a calculation of predicted / actual performance EU Directive Energy in Buildings BREEAM is part of a broader family of tools and design tools relating to: Materials ENVEST; Green Guide Energy consumption / CO2 SAP; CPR Construction waste management SmartWaste; SmartStart Sustainable communities Sustainability Checklist for Developments. 5

6 EU Directive Energy in Buildings Conclusion Ensure comparability between methods and a clear relationship between them Avoid confusion in the market place Allow for innovation Avoid being prescriptive Target a range of decision makers / stakeholders KEEP IT SIMPLE 6