griha
TRANSCRIPT
B Y M U K U L S A I N I
E T ( A R C H . ) A R C H I T E C T U R E D E P A R T M E N T
( C I V I L D E S I G N )
Sustainable Built Environmentand
GRIHA(Green Rating For Integrated Habitat Assessment)
Structure OF Presentation
Indian Context Elements of a Sustainable Habitat Elements contributing to Sustainable Habitat Generalized Framework Energy Balance Necessity of Green Buildings Characteristics of Green Buildings Genesis of Rating System GRIHA Variants GRIHA and its Criterion
Indian context
Urbanization Number of large cities to increase Energy security : fuel import dependency, coal
dependency increasing Energy shortages already, low per capita energy
consumption; environmental considerations Sustainable habitats Integrated planning esp. for cities Self-sufficient neighborhood
Elements of Sustainable Habitat
Optimal allocation of land
Built Environment
Buildings Surroundings
Efficient appliances and fixtures
Choice of materials
Location of BuildingSmart Buildings (bldgs. as generators of energy)
Transport systems and infrastructureEnvironmental management - Water & waste
Energy security – renewable sources and energy efficiency
Elements contributing to sustainable
habitat
Density: It is the concentration of population, dwelling units, employment or any other variable over a specific area which can be either gross or net
Design: the street network which is pedestrian oriented rather than auto and whose characteristics include side walk, inter connection with in the streets, number of intersection, pedestrian crossing, street lighting
Diversity: It is a measure of variety of land uses present in a given area on the basis of floor area, employment and land area
Distance to transit: the average of the shortest street routes from home or work to the nearest rail stations and bus stops
Destination accessibility: the ease with which one can access the trip attraction to both local (market) and regional (jobs) destinations
Generalised framework
Density Diversity Design Distance to Transit Destinat ion Accessibi l i ty
Walkabil i ty Transit Use Vehicle Miles Travelled
I N C R E A S E D D E C R E A S E D
Transi t Oriented Development
Lower dependence on non renewable resources (crea t ing energy securi ty )
Reduced GHG emiss ions
Control led bui l t environment
External lighting(Street, landscaping, architectural)
Sustainable Energy
Demand Supply
Energy balance
Building lighting(Day lighting &Artificial lighting)
Building space conditioning
Equipment (Transformer/pumps/motors etc.)
• Day lighting integration in design
• Natural ventilation / thermal comfort
• Efficient building envelop design
• Efficient indoor and external lighting fixtures
• Automatic controls• Efficient HVAC systems• Equipment to meet ECBC
standards
Energy generation from RE energy
• Solar• Wind• Bio Gas• Geo thermal
• Efficient management of energy and water resources
• Management of material resources and waste • Restoration and protection of environmental
quality • Enhancement and protection of health and indoor
environmental quality • Reinforcement of natural systems • Analysis of the life cycle costs and benefits of
materials and methods • Integration of the design decision-making process
CHARACTERISTICS OF GREEN AND
SUSTAINABLE BUILDINGS
GRIHA-Green Rating for Integrated Habitat
Assessment
Tool to facilitate design, construction, operation of a green building ,and in turn ….measure “greenness” of a building in India
What gets measured gets managed
Genesis
2000
TERI Retreat
Over 100 audits
…2000 2001
Advent of LEED: CII-Sorabhji Godrej Green Business
Centre, Hyderabad-Platinum Rated
TERI- GRIHA
2005
ECBC
2007 2007
2008
NMSH
2009
CPWD adopts GRIHA
2009
Setting up of ADaRSH
2010
Capacity building –
GRIHA certified
Trainers and Evaluators
2011
2011
GRIHA adopted by
PCMC
2011
2012
SVA GRIHAProduct
catalogue
2013
GRIHA LDGRIHA
android app
GRIHA RATING SYSTEM
Set of 34 criteria100 (+4 innovation points) Point system with differential weight age on various Criteria50-6061-7071-8081-9091-100
KEY HIGHLIGHTS OF GRIHA
•Sets out guidelines for design, construction and operation•Combination of qualitative and quantitative criteria•Sets performances benchmarks for key resources like, energyand water•Facilitates integration of traditional knowledge on architecturewith present day technology•Integrates all relevant Indian codes and standards(e.g Nationalbuilding code 2005, Energy Conservation Building Code 2007,IS codes)•Is in complete alignment with government policies andprograms (e.g Environmental clearance by the MoEF)
NO. CRITERION POINTS
1 Site selection 12 Preserve and protect landscape during
construction5
3 Soil conservation (till post-construction) 24 Design to include existing site features 45 Reduce hard paving on-site and/or provide
shadedhard-paved surfaces
2
6 Enhance outdoor lighting system efficiency anduse renewable energy system for meeting outdoor lighting requirements
3
7 Plan utilities efficiently and optimize on-sitecirculation efficiency
3
8 Provide minimum level of sanitation/safety facilities for construction workers
2
9 Reduce air pollution during construction 2
SITE PLANNING
HEALTH AND WELL BEING
NO. CRITERION POINTS
10 Reduce landscape water requirement 311 Reduce water use in the building 212 Efficient water use during construction 113 Optimize building design to reduce conventional
energy demand8
14 Optimize energy performance of building withinspecified comfort limits
16
15 Utilization of fly-ash in building structure 616 Reduce volume, weight, and construction time
byadopting efficient technologies (such as pre-cast systems)
4
17 Use low-energy material in interiors 418 Renewable energy utilization 519 Renewable-energy-based hot water system 320 Waste water treatment 221 Water recycle and reuse (including rainwater) 5
BUILDING PLANNING AND CONSTRUCTION STAGE
RECYCLE,RECHARGE &REUSE
NO. CRITERION POINTS
22 Reduction in waste during construction 123 Efficient waste segregation 124 Storage and disposal of wastes 125 Resource recovery from waste 226 Use low-VOC paints/adhesives/sealants 327 Minimize ozone depleting substances 128 Ensure water quality 229 Acceptable outdoor and indoor noise levels 230 Tobacco smoke control 131 Provide at least the minimum level of
accessibility for persons with disabilities1
32 Energy audit and validation MANDATORY
33 Operation and maintenance 234 Innovation points 4
WASTE MANAGEMENT
HEALTH &WELL BEING
Can you design a green building?1.By adopting the integrated design approach such that the client, architect,engineers, and consultants design the building in a coordinated manner with acommon goal – sustainability.2.By following regional development plans (such as the UDPFI guidelines, masterplans) and local building by-laws3.By following India’s national codes and standards4.By optimizing site conditions (trees, water bodies, wind-flow, orientation, etc.) andharnessing them to cater to the thermal / visual comfort requirements of thebuilding5.By adopting sound architectural practices and taking examples from India’straditional architecture6.By adopting locally available construction materials and giving impetus to localarts, crafts, architecture and artisans7.By designing precisely-sized energy systems and not basing them on broadthumb-rules8.By reducing the resource consumption of the building and its inhabitants so thatthe waste generating there-from is reduced9.By adopting energy efficient technologies (EETs) and equipment10.By adopting renewable energy technology (RETs) applications to reduce thedemand on conventional energy