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A how to guide for using the Building Research Establishment Environmental Assessment Methodology (BREEAM)

A how to guide for using the Building Research Establishment Environmental Assessment Methodology (BREEAM)

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  • It sets the standards for best practice in sustainable development and demonstrates a level of achievement. It has become the defacto measure of a building’s environmental performance. Created by BRE (Building Research Establishment) BREEAM is a tried and tested system both in terms of its robust technical standards and its commercial delivery, (especially the independence of its licensing, quality assurance and certification process).
  • Management: This part of the assessment looks at management structures that achieve maximum benefits and minimum environmental impacts through the correct construction and commissioning of the building. Health and well-being: The aim is to ensure that practical steps are taken to minimise the negative effects of a building on the occupants and those of its neighbours in terms of their health and well being. This aspect includes workplace conditions (e.g. daylight, noise and views out) and control of hazardous substances. Energy: There is wide consensus amongst environmentalists that greenhouse gas emission is the most important impact. The energy used in buildings is probably the most important environmental impact and is scored accordingly. This section rewards those who have taken steps in terms of the building fabric and systems, and in planning for future monitoring of energy use. Transport : The Carbon Dioxide emissions associated with transporting people to the building can be of the same magnitude as those emitted in running it. It is therefore important to consider the location of the building and transportation impacts in any assessment. Water : Consumption of water has risen 70% over last 30 years. Credits are awarded for metering, leak prevention and low consumption fittings. Materials : The materials in a building represent a significant part of the impact of the construction process, with an estimated 10% of UK’s energy use annually associated with their production, together with a range of land use, bio-diversity and pollution issues. The largest benefits can be achieved by specification at the design stage. Waste : reduction of site waste being sent to landfill and recycling is rewarded together with use of recycled aggregates and provision of recycling facilities fir building occupants. Land Use and Ecology: With growing concern about the use of land in the United Kingdom, there is strong preference for the re-use of land. Ecology is related to the land use issues and directly affects the variety of species on the site. The aim is to minimise the impact of development on the natural life on the site, and ideally to enhance biodiversity. Pollution: The final section relates to a range of pollutants which are produced by or for buildings. The main issues are the ozone depleting and global warming chemicals, with NOx and water courses also covered.
  • 1. Design Stage The issues assessed here are expected to result in a credible and comparative assessment of the building’s potential environmental impacts in operation. It covers those issues that are of relevance during the design and construction process such as issues of specification and process. An interim Certificate is issued by BRE 2. Post Construction review This assessment covers the same issues as the Design stage assessment but the audit is conducted against the as built facility to prove that the design intent has actually been carried out . All projects registered with BRE after 31/7/2008 will be required to have both a Design and a Post Construction Review assessment before a full Certificate will be issued . BREEAM certification is carried out by BRE. The certificate is issued on the basis of a report prepared by a Licensed assessor. Assessment organisations are licensed by BRE to carry out formal assessment reviews, prepare assessment reports and offer related consultancy services under the BREEAM label. Stringent quality management procedures have been adopted to ensure a consistent approach and level of service.

BREEAM Presentation BREEAM Presentation Presentation Transcript

  • BREEAM Presentation
  • Introduction to BREEAM
    • The Building Research Environmental Assessment Method (BREEAM) is the world’s leading system for assessing the range of environmental impacts associated with buildings.
    • BREEAM is used by owners, users and designers to demonstrate their environmental commitment and to reduce the impact that their buildings have on the environment.
    • Buildings are assessed against performance criteria set by the BRE and awarded ‘credits’ based on their levels of performance.
  • Buildings assessed
    • The Building Research Establishment has standard models for several types of development:
      • Offices
      • Schools and Education
      • Light industrial, warehousing (non-retail)
      • Residential (“Eco Homes” and Code for Sustainable Homes and Multi-residential)
      • Retail
      • Prisons
      • Courts
      • Health
  • Aims of BREEAM
    • To reduce the environmental impacts of developments.
    • To enable developments to be recognised according to their environmental benefits. To provide a credible, environmental label for buildings.
    • To stimulate demand for environmentally sustainable buildings.
  • Objectives
    • To distinguish buildings of reduced environmental impact in the marketplace.
    • To ensure best environmental practice is incorporated in building design, operation, management and maintenance.
    • To set criteria and standards surpassing those required by regulations.
    • To inform the design process.
    • To raise the awareness of owners, occupants, designers and operators of the benefits of buildings with a reduced impact on the environment and the benefits of building to best environmental practice standards.
    • To allow organisations to demonstrate progress towards corporate environmental objectives.
  • Benefits
    • Benefits range from environmental to financial, these include:-
    • Demonstrating sustainability credentials to planning authorities for a smooth passage through the planning process
    • Demonstrating superior environmental design resulting in:
      • Reduced running costs trough greater energy and water efficiency, and reduced maintenance
      • Healthy, comfortable and flexible internal environments
      • Access to local amenities
      • Less dependence on the car
      • Allowing developers to be one step ahead of regulation
      • Demonstrating compliance with environmental requirements from occupiers, planners, development agencies and developers
      • Environmental improvement: in support of a wider corporate strategy or as a standalone contribution
      • Occupant benefits: to create a better place for people to work and live
      • Marketing: as a selling point to potential tenants or customers
      • Financial: to achieve higher rental incomes and increased building efficiency
      • Best practice: to provide a thorough checklist or tool for comparing buildings
      • Client request: responding to the requirements of users
  • Key issues
    • Management
    • Health and well-being
    • Energy
    • Transport
    • Water
    • Materials
    • Waste
    • Land Use and Ecology
    • Pollution
    • Each category has a varying number of credits
    • The number of credits in each category does not reflect the relative importance of these issues.
    • Each credit is given a percentage relating to its importance
    • An overall building score can then be calculated for the building.
  • Scoring
    • Environmental weighting are applied to each section and the final score is given as a percentage.
    • The BREEAM rating is then awarded as per the table below:
    *>85 Outstanding >70 Excellent 55 - <70 Very Good 45 - <55 Good 30 - <45 Pass <30 Unclassified Benchmark BREEAM Rating%
  • Two stages of assessment
    • 1. Design Stage
    • 2. Post Construction review
  • Using BREEAM Effectively
    • Introduce the main issues at the earliest stage in the design process, to form a focus for the discussion of the environmental impacts of the building.
    • Input is expected to be needed from a wide range of people. Although the architect and building services designers have the largest share, the project manager, structural engineer and contractors all have a part to play.
    • The BREEAM assessor should also be appointed early
    • Clients can use BREEAM to specify the environmental sustainability performance of their buildings in a way that is quick, comprehensive and visible in the marketplace.
    • Letting agents can use BREEAM to promote the environmental credentials and benefits of a building to potential clients
    • Design teams can use BREEAM as a tool to improve the performance of the buildings and their own experience and knowledge of environmental aspects of sustainability.