2. What is Green Building?
• It refers to a structure and using process that is environmentally
responsible and resource efficient throughout a building’s life cycle :
from sitting to design, construction, operation, maintenance,
renovation, and demolition.
• Green building – also known as sustainable or high performance
building increases the efficiency with which buildings and their sites
use and harvest energy, water, and materials.
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3. Why Green Building?
• Green building are designed to reduce the overall impact of the built
environment on human health and the natural environment
• Efficiently using energy, water and other resources and to develop its
own resources.
• Protecting occupant health and improving employee productivity.
• Reducing waste, pollution and environment degradation.
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4. Goals of Green Building
• Green building emphasizes on using renewable resources.
• Green building brings together a vast array of practices, techniques,
and skills to reduce and ultimately eliminate the impacts of buildings
on the environment and human health.
• A building should be Structure Design Efficient, Energy
Efficient, Water Efficient, Material Efficient, Indoor Environmental
Quality Enhanced , Operations and Maintenance Optimization,
and Waste and Toxics Reducing
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6. Structure design Efficient
• The foundation of any construction project is rooted in the concept
and design stages. In designing environmentally optimal buildings,
the objective is to minimize the total environmental impact
associated with all stages of the building project.
• However, building such structure is not an industrial process, and
varies from one building to the other, never repeating itself
identically.
• A variation of every design variable may affect the environment
during all the building's relevant life-cycle stages.
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7. Energy Efficient
• Green buildings often include measures to reduce energy
consumption during the time of construction and after completion
during operation.
• Power generation is generally the most expensive feature to add to a
building.
• During construction wood is more preferred compared to concrete
steel or brick as it will have lower embodied energy than the other
materials.
• To reduce operating energy use, high-efficiency windows and
insulation in walls, ceilings, and floors increase the efficiency of
the building.
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8. • Designers orient windows and walls and place awnings, porches, and
trees to shade windows and roofs during the summer while
maximizing solar gain in the winter.
• In addition, effective window placement can provide more natural
light and lessen the need for electric lighting during the day.
• Onsite generation of renewable energy through solar power, wind
power, hydro power, or biomass can significantly reduce the
environmental impact of the building.
• Solar Power is one of the most common feature of all the green
building.
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9. Water Efficient
• Reducing water consumption and protecting water quality are key
objectives in sustainable building. One critical issue of water
consumption is that in many areas, the demands on the supplying
aquifer exceed its ability to replenish itself.
• The 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.
• Waste-water may be minimized by utilizing water conserving fixtures
such as ultra-low flush toilets and low-flow shower heads.
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10. • Watershed development will also reduce the water requirement from
the outside.
• Development of terrace garden will reduce the runoff quantity of
water.
• Use of gravel bags and open pits near the building will help penetrate
water into soil and helps in bringing the ground water level up.
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11. Materials efficiency
• Building materials typically considered to be 'green' include lumber
from forests that have been certified to a third-party forest standard,
rapidly renewable plant materials like bamboo and straw, dimension
stone, recycled stone, recycled metal and other products that are
non-toxic, reusable, renewable, and recyclable.
• The EPA (Environmental Protection Agency) also suggests using
recycled industrial goods, such as coal combustion products, foundry
sand, and demolition debris in construction projects.
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12. • Green building material are selected on criteria such as Resource
efficiency, Indoor environment air quality, Energy efficiency, Water
conservation, Affordability.
• Resource efficiency:- the resource should be recycled if possible, its
manufacturing process should be efficient, durable, locally available
and cost efficient.
• Indoor environmental quality enhancement:- The materials used
should be non toxic moisture resistant.
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13. Operations and Maintenance Optimization
• No matter how sustainable building is and its design if its not
maintained properly it might not be the operational building.
• The addition of new green technologies also falls in the O&M.
• Although the goal of waste reduction may be applied during the
design, construction and demolition phases of a building's life-cycle, it
is in the O&M phase that green practices such as recycling and air
quality enhancement take place.
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14. Waste Reduction
• Green architecture also seeks to reduce waste of energy, water and
materials used during construction.
• During the construction phase, one goal should be to reduce the
amount of material going to landfills. Well-designed buildings also
help reduce the amount of waste generated by the occupants as well,
by providing on-site solutions such as compost bins to reduce matter
going to landfills.
• To reduce the consumption of water “grey water” method is used.
• To reduce the emission renewable sources are used itself in building
such as wind power and solar power.
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15. Cost and Payoff
• This is one of the most criticized point in the development of such
buildings.
• The initial cost of development such building may be 2%-5% more
than initial building in making it a green building.
• The outcome of this initial making building green can give out return
of around 20%-25% in around 20 years if it is fully operational.
• The savings in money come from more efficient use of utilities which
result in decreased energy bills.
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16. Regulation and operation
• As a result of the increased interest in green building concepts and
practices, a number of organizations have developed standards, codes
and rating systems that let government regulators, building
professionals and consumers embrace green building with
confidence. In some cases, codes are written so local governments
can adopt them as bylaws to reduce the local environmental impact
of buildings.
• Of all the agencies LEED(Leadership in Energy and Environmental
Design) is one of the largely followed code on worldwide basis.
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17. • Other agencies are
i. BREEAM (U.K.)
ii. IGBC (India)
iii. DGNB (GERMANY)
iv. CASBEE (JAPAN)
v. Agenda 21 (U.N.)
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18. Best Green Buildings of World
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Taipei 101 received LEED Platinum rating in
operation and management and became the
tallest skyscraper in the world to achieve this
feature.
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Pixel studio ,Australia received full score in
Green Star rating system and received extra 5
points for reducing the carbon emission. This is
the most efficient GREEN building in the world
at the moment.
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Pathway World School, Noida is the first
school in the world to achieve the LEED
platinum rating. The other schools of the
Pathway group have also achieved the
Platinum rating making it only school
system to achieve this feature.
21. Indian Green Buildings
• ITC Green Centre - Gurgaon (LEED Platinum)
• Nucleus Mall- Kochin (LEED Gold)
• Birla International School- Jaipur (LEED Gold)
• Doon School – Dehradun (LEED Gold)
• Suzlon One Earth- Pune (LEED PLatinum)
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