Module 3_GREEN BUILDINGSfor engineering education.pptx

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1. Module 4 Green Building Rating Systems Prepared by Dr. Vibha V Dept of Civil Engnieering BMSCE Bangalore

2. Rating Systems A certified rating reflects the performance achieved by a project and its stakeholders, as measured against the set standard and benchmarks.

3. BREEAM Building Research Establishment Environmental Assessment Methodology It sets the world standard for rating systems of building and works as an environmental assessment method It ensures buildings are compliant with sustainable construction, operation, design also used to assess both refurbishment schemes and new developments.

4. first launched in 1990 by the Building Research Establishment (BRE)  It helped to create a much greener built environment across the UK and the rest of Europe, with schemes implemented in Norway, Sweden, Spain and the Netherlands The BREEAM assessment method has been applied in over 70 countries around the world The most recent statistics from 2016 show that there are over 550,000 developments certified by BREEAM Over 2,250,700 buildings have been registered for a BREEAM assessment At least half of all local planning authorities in England have the BREEAM assessment method as part of their development network This rises to over 70% of authorities in London

5. What are the Criteria? The following categories and criteria BREEAM assessors take into account include the following: Ecology Pollution Waste Energy Management Water consumption Health and Wellbeing Efficiency Materials Transport

6. Assessment There are two BREEAM assessment and certification stages that are implemented: An assessment during the design stage (in which an interim certificate is given) An assessment during the post-construction stage. This latter stage is the point in which a final certificate and subsequent rating is given.

7. 9+1 Categories Categories Points Energy 31 Management 21 Materials 14 Pollution 13 Transportation 12 Water management 9 Waste management 9 Innovation 10 Health and wellbeing 21 Total 150 Points

8. The BREEAM Rating Scale The BREEAM Rating Scale works as follows: Unclassified (a score of less than 30%) Pass (a score of more than 30%) This equates to around 75% of UK new non-domestic buildings Very good (a score of more than 55%) Around 25% of UK new commercial buildings in the UK Excellent (a score higher than 70%) Top 10% of new commercial buildings in the UK Outstanding (the highest score: a rating higher than 85%) this is usually equivalent to less than 1% of all new commercial buildings in the UK

9. BREEAM RATING MATRIX < 30 % Unclassified 30 – 45 % Single star 45 – 55 % Two star 55 – 70 % Three star 70 – 85 % Four star > 85 % Five star

10. LEED LEADERSHIP IN ENERGY AND ENVIRONMENTAL DESIGN (1994) (US Based) FRAMEWORK CONSISTS OF 5+1 CATEGORIES Categories Points Energy and Atmosphere 35 Sustainable sites 26 Indoor environment quality 15 Materials and resources 14 Water efficiency 10 Innovation and regional priority 10 Total 100 +10

11. Points Rating 40 – 50 Certified 50 – 60 Silver Certified 60 – 80 Gold Certified 80 Platinum certified

12. GREEN STAR (GBC of Australia) Considers 9 environmental impact categories Evaluates for green credits of 100 + 10 points

13. Categories Points Energy 22 Materials 14 Indoor environment quality 17 Management and monitoring 14 Water management 12 Transportation 10 Land use and ecology 6 Emissions from site 5 Innovation 10 Total 100 +10

14. Points Building grade 10 – 20 % * Minimum Satisfactory 20 – 30 % ** Average 30 – 45 % *** Good 45 – 60 **** Best Practice 60 – 75 ***** Australian excellence 75 World leader

15. GRIHA GRIHA (Green Rating for Integrated Habitat Assessment) , is the national green building rating system of India, is the product of the collaboration of The Energy and Resources Institute (TERI) with the Ministry of New and Renewable Energy (MNRE) . Being the country's own green building grading system, GRIHA analyzes a building's resource consumption, waste generation, and overall environmental impact.

16. Requirements of a Green Habitat A green habitat strives to: Keep the demand for electricity, water, and other natural resources as minimal as possible in all phases of construction, operation, and demolition. Use renewable energy to generate on-site electricity. Meet all of its water requirements using environmentally friendly ways such as rainwater harvesting. Recycle and reuse all of its waste on-site, resulting in a minimal environmental effect.

17. GRIHA Assessment Criteria Green Rating for Integrated Habitat Assessment (GRIHA) assesses a building on 30 parameters divided into 11 sections. They are: 1. Sustainable site planning Green infrastructure Low-impact design UHIE-mitigation designs 2. Construction management Pollution control- air and soil Preserving topsoil Adopting best practices for construction management 3. Energy efficiency Optimizing energy consumption Using renewable energy Using materials with low GWP (Global Warming Potential) and ODP (Ozone Depleting Potential)

18. 4. The comfort of the occupant Visual comfort Thermal comfort Internal air quality 5. Water management Reducing water demand Treating wastewater Managing/ storing rainwater Self-sufficiency and water quality analysis

19. 6. Solid waste management Waste management methods after the occupation The on-site organic waste treatment facility 7. Use of environmentally-friendly building materials Using green alternatives for construction Life Cycle Assessment and reducing global warming potential Using alternate materials for developing the external site

20. 8. Analysis of life cycle costing 9. Socio-economic parameters Sanitation and workplace safety of workers involved in construction activities Accessibility Facilities for service staff Favourable social impact 10. Performance Monitoring Commissioning for final rating Smart metering Protocol for operation and maintenance

21. Categories Points Energy 18 Water management 16 Health and comfort 12 Site sustainability 12 Sustainable building materials 12 Social and economical aspects 8 Performance metering and monitoring 7 Waste management 6 Life cycle costing 5 Construction management 4 Innovation 5 Total 100 +5

22. GRIHA Ratings Green Rating for Integrated Habitat Assessment (GRIHA) allocates points to buildings on a scale of 100, based on the 30 parameters discussed above. However, to be certified by GRIHA, a project must receive at least 50 points. Rating Points 5-star 86 above 4-star 71-85 3-star 56-70 2-star 41-55 1-star 25-40