GREEN BUILDINGBy: Ashish Kumar (C07202)

GREEN BUILDING

also known as green construction or sustainable building

It is the practice of creating structures and using processes that are environmentally responsible and resource-efficient throughout a building's life-cycle

DEFINITION GIVEN BY INDIAN GREEN BUILDING COUNCIL

"A green building is one which uses less water, optimizes energy efficiency, conserves natural resources, generates less waste and provides healthier spaces for occupants, as compared to a conventional building."

GOALS OF GREEN BUILDING

Siting and structure design efficiency Energy efficiency Water efficiency Materials efficiency Indoor environmental quality

enhancement Operations and maintenance

optimization Waste reduction

SITING AND STRUCTURE DESIGN EFFICIENCY

one of the major steps in a project life cycle, as it has the largest impact on cost and performance.

Orientation of sturucture, selection of materials etc. needs to be given due importance..

ENERGY EFFICIENCY

Use of high-efficiency windows: Solar window:Photovoltaïc windows not

only provide a clear view and illuminate rooms, but also use sunlight to efficiently help generate electricity for the building.

Roof window:A sloped window used for daylighting.

Insulation in walls, ceilings, and floors: Insulation reduces unwanted heat loss or

gain and can decrease the energy demands of heating and cooling systems.

Spray Polyurethane Foam (SPF) Insulation Sealection 500 spray foam Cementitious foam

EARTH HOUSE

SOLAR WATER HEATING

WATER EFFICIENCY

Protection and conservation of water throughout the life of a building may be accomplished by:

designing for dual plumbing that recycles

water in toilet flushing Use of ultra-low flush toilets. Use of low-flow shower heads. Reuse of graywater for watering gardens. Rainwater Harvesting. foot-operated faucets, which can save water

in kitchens.

MATERIALS EFFICIENCY

Building materials typically considered to be 'green' include rapidly renewable plant materials like bamboo (because bamboo grows quickly),recycled stone, recycled industrial goods, recycled metal, and other products that are non-toxic, reusable, renewable…

INDOOR ENVIRONMENTAL QUALITY ENHANCEMENT

Buildings rely on a properly designed HVAC system to provide adequate ventilation.

During the design and construction process choosing construction materials and interior finish products with zero or low emissions will improve IAQ

Creating a high performance luminous environment through the careful integration of natural and artificial light sources will improve on the lighting quality of a structure

OPERATIONS AND MAINTENANCE OPTIMIZATION

No matter how sustainable a building may have been in its design and construction, it can only remain so if it is operated responsibly and maintained properly

Addition of new green technologies, recycling and air quality enhancement can only be ensured with the help of O&M staff.

WASTE REDUCTION

by providing on-site solutions such as compost bins to reduce matter going to landfills.

"Greywater", wastewater from sources such as dishwashing or washing machines, can be used for subsurface irrigation,,for non-potable purposes, e.g., to flush toilets and wash cars

By collecting human waste at the source and running it to a semi-centralized biogas plant with other biological waste, liquid fertilizer can be produced.

COST

Most overrated fact… Initial cost is normally more than the

conventional buildings but the return it gives is much more than that…Returns are in the form of decreased electricity and water bills over a period of 50-60 yrs or what ever be the life span of the building.

CHALLENGES

Architect’s Claim: Architects claim that they have the intention to design with the green building concept but the construction market doesn’t work with them.

. Innovations and Techniques..

LEED CERTIFICATION Criteria for LEED-INDIA-certified buildings:

* are leading the transformation of the built environment

* are built as designed and perform as expected.

* have lower operating costs and increased asset value

* are healthy and comfortable for their occupants

* reduce waste sent to landfills

* conserve energy and water

* reduce harmful greenhouse gas emissions

* demonstrate an owner`s commitment to environmental stewardship and social responsibility

CERTIFIED BUILDINGS IN INDIA

BCIL T ZED Homes( Bangalore)

Avani Residence(Hyderabad)

TAMIL NADU LEGISLATIVE ASSEMBLY BUILDING{FIRST LEGISLATIVE ASSEMBLY / SENATE BUILDING IN THE WORLD TO HAVE ACHIEVED GREEN BUILDING RATING}

The Tamil Nadu Legislative Assembly in Chennai which is being inaugurated on 13 March 2010 has been designed and constructed based on green building principles. The building has been awarded the prestigious'Gold' rating from Indian Green Building Council (IGBC-which is part of CII).

KEY GREEN FEATURES IMPLEMENTED IN THE TN LEGISLATIVE ASSEMBLY BUILDING:  Energy efficient measures to conserve 15-20% of energy Water efficient fixtures to save water to the tune of 40-

45% Roof gardens to reduce heat island effect On-site rain water harvesting system Reuse of 100% treated waste water for landscaping and

flushing requirements Over 90% of the construction waste recycled and reused

on the site Electric charging refueling stations in the parking lots Use of certified wood, jute carpets, MDF made of

sugarcane bagasse Use of rapidly renewable material like eucalyptus and

poplar timber 40% of building material is extracted and manufactured

locally / regionally

PICS OF TNLA

thanks