Green
building is defined as people with healthy, comfortable and safe living,
working and activities of the space, while the building full life cycle
(material production, construction planning, design, construction, operation and
maintenance, and removal, recycling) process to achieve efficient use of
resources (energy, disabilities, the water, materials), with minimum impact on
the environment of buildings, also known as eco-building, sustainable
architecture.
The
concept of green building stems from effective
utilization of energy resources including sunlight, electricity and water.
It is more about sustainability, aimed at creating healthier and more resource
efficient models of construction, renovation, operation, maintenance, and
demolition.
Typical
principles include climate-responsive design, use of local and sustainable
materials, water harvesting, etc. Architectural elements like courtyards,
clusters, wind towers, roof terraces and jaalis (stone lattices), among others,
are used for effective climate control and have become social and cultural
elements.
Green buildings are designed to reduce the
overall impact of the built environment on human health and the natural
environment by:
•
Efficiently using energy, water, and other resources
•
Protecting occupant health and improving employee productivity
•
Reducing waste, pollution and environmental degradation.
The
main objectives of sustainable design are to avoid resource depletion of
energy, water, and raw materials; prevent environmental degradation caused by
facilities and infrastructure throughout their life cycle; and create built
environments that are livable, comfortable, safe, and productive.
Green
buildings are not only designed for present use, but consideration is also been
given to future uses as well. An adaptable structure can be
"recycled" many times over the course of its useful life. If specific
technical issues prevent use of the building for a new function, then the
materials used in its construction are designed to facilitate ease of recycling
and reprocessing of materials.
In
a green building, consideration is also given to the construction process
itself. Materials that minimize waste or can be recycled help contribute to an
efficient and environmentally sensitive construction process. Green buildings
are designed to eliminate waste by using modular systems of construction,
recycled products, and resourceful use of materials. The ideal green building
would create no waste either during construction or use, so the impact on the
environment and resources is minimized.
Another
important aspect of green architecture is the integration of energy efficient
mechanical systems and conservation methods.
Green
buildings are designed to reduce or eliminate the dependence on fossil fuels.
Further, land use and building orientation also plays a critical role in green
architecture. A green building is located to take advantage of its climate and
surroundings. These conditions not only affect the efficiency of a building, but
of the community and society as a whole. Planning for responsible land use
addresses these issues through the consideration of climate, transportation,
and the natural environment.
EVOLUTION: Green Architecture began
with the first Earth Day (22ND April) in 1970, and has grown in popularity as
awareness of the earth’s many ecological problems become more wide spread.
The
Energy and Resource Institute plays a very important role in developing green
building capacities in the country. TERI came up with a rating system called
GRIHA which was adopted by the Government of India as the National Green
Building Rating System for the country. GRIHA aims at ensuring that all kinds
of buildings become green buildings. the strengths of GRIHA lie in the fact
that it rates even non-air conditioned buildings as green and puts great
emphasis on local and traditional construction knowledge. THE CESE building in
IIT Kanpur became the first GRIHA rated building in the country and it scored 5
stars, highest in GRIHA under the system. It has become a model for green
buildings in the country. It has proved that with little extra investment,
tremendous energy and water savings are possible. There are various projects
which are the first of their kinds to attempt for green building ratings like
apartment residential buildings and non-air conditioned buildings.
Measures are being taken to spread awareness about the
GRIHA-National Green Building Rating System of India.
The
Confederation of Indian Industry (CII) plays an active role in promoting
sustainability in the Indian construction sector. The CII is the central pillar
of the Indian Green Building Council or IGBC. The IGBC has licensed the LEED
Green Building Standard from the U.S. Green Building Council and currently is
responsible for certifying LEED-New Construction and LEED-Core and Shell
buildings in India. All other projects are certified through the U.S. Green
Building Council. There are many energy efficient buildings in India, situated
in a variety of climatic zones. One of these is RMZ Millenia Park, Chennai,
India's largest LEED gold-rated Core & Shell green building.
The above introduction about Green buildings is just a example why it is required what are the step's which are initiated towards it, it would be my humble request to all the readers to start implementing the Green process on their level............... its not so late but if we don't initiate it might get to late.