INDIAN GREEN

BUILDING COUNCIL
(IGBC)
SHRIYA JOSHI 05-AR-17-14
RAJESH MALIK 05-AR-17-19
ENVIRONMENTAL STUDIES
SEMESTER IX LIPI MEHTA 05-AR-17-22
B.R.H.C.O.A SAMEER MOKARI 05-AR-17-23
ADARSH PATEL 05-AR-17-25
PRASAD PISAT 05-AR-17-27
SALONI PRASAD 05-AR-17-28
SAHIL RAHATE 05-AR-17-29
SANJAY SHENAVI 05-AR-17-32
TEJAS SHIRODE 05-AR-17-33
KINNARI THAKAR 05-AR-17-35
DEEPAK AGAWANE 05-AR-16-02
 CONTENTS
TOPICS PAGE NO.

• INTRODUCTION - 03
• SUSTAINABLE ARCHITECTURE DESIGN - 07
• SITE SELECTION AND PLANNING - 14
• WATER CONSERVATION - 25
• BUILDING MATERIALS AND RESOURCES - 37
• INDOOR ENVIRONMENT QUALITY - 48
• INNOVATION AND DEVELOPMENT - 66
• ENERGY EFFICIENCY - 76
• EXAMPLES - 81

2
INTRODUCTION

3
INTRODUCTION

•The building sector in India is growing at a rapid pace and contributing immensely
to the growth of the economy. This augurs well for the country and now there is an
imminent need to introduce green concepts and techniques in this sector, which
can aid growth in a sustainable manner. The green concepts and techniques in the
building sector can help address national issues like water efficiency, energy
efficiency, reduction in fossil fuel use for commuting, handling of consumer waste
and conserving natural resources. Most importantly, these concepts can enhance
occupant health, productivity and well-being.
•Against this background, the Indian Green Building Council (IGBC) has launched
‘IGBC Green New Buildings rating system to address the national priorities. This
rating programme is a tool which enables the designer to apply green concepts
and reduce environmental impacts that are measurable. The rating programme
covers methodologies to cover diverse climatic zones and changing lifestyles.

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OBJECTIVES

•The objective of IGBC Green New Buildings rating system is to

facilitate a holistic approach to create environment friendly buildings,
through architectural design, water efficiency, effective handling of
waste, energy efficiency, sustainable buildings, and focus on occupant
comfort & well-being.

BENEFITS
•Green New buildings can have tremendous benefits, both tangible and
intangible. The most tangible benefits are the reduction in water and
energy consumption right from day one of occupancy. The energy
savings could range from 20 - 30 % and water savings around 30 - 50%.
The intangible benefits of green new buildings include enhanced air
quality, excellent daylighting, health & well-being of the occupants, safety
benefits and conservation of scarce natural resources.
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OVERVIEW
The guidelines detailed under each mandatory requirement & credit enables the design and
construction of new buildings of all sizes and types (as defined in scope). Different levels of green
building certification are awarded based on the total credits earned. However, every green new building
should meet certain mandatory requirements, which are non-negotiable. The various levels of rating
awarded are as below:

Certification level Recognition

Certified Good Practices

Silver Best Practices

Gold Outstanding Performance

Platinum National Excellence

Super Platinum Global Leadership

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 SUSTAINABLE ARCHITECTURE DESIGN

INNOVATION
AND
A COLLECTIVE EFFORT DEVELOPMENT SUSTAINABLE

A SITE

ENERGY
CONSERVATION
O
MATERIALS

ECOLOGYCAL BALANCE C AND

CONSTRUCTION

WATER
CONSERVATION
D
E INDOOR AIR
QUALITY

RESULT OF THE DESIGN

PHILOSOPHY
SUSTAINABLE ARCHITECTURE DESIGN

• Green building rating brings together a

host of sustainable practices and
solutions to reduce the environmental
impacts.
• Green building design provides an
integrated approach considering life cycle
impacts of the resources used.

• The rating systems are based on the five

elements of the nature (Panchabhutas)
and are a perfect blend of ancient
architectural practices and modern
technological innovations.
• The ratings systems are applicable to all
five climatic zones of the country. IGBC
rating programs have become National by
Choice and Global in Performance.
 SUSTAINABLE ARCHITECTURE DESIGN
• Integrated Design Approach SA Credit 1 Points: 1

• Intent: Encourage integrated design approach to construct a

high performance building, thereby reducing negative
environmental impacts.

• Compliance Options: Demonstrate that the project has

involved team members from multi-disciplinary fields for
effective decision-making and enhanced building
performance, right from conceptual stage till completion of
the project.
• Ensure that the project owner involves the following
project team members, as applicable, at each stage of
the project: Architect, Commissioning Authority,
Energy Modeler, Facility Managers, General
Contractor, Green Building Consultant, Interior
Designer, Landscape Architect, MEP Consultant,
Project Management Consultant, Structural
Consultant, and other project team members.
• Document at least three project meetings at different
stages of the project.
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 SUSTAINABLE ARCHITECTURE DESIGN

Site Preservation SA Credit 2 Points: 2

• Intent: Encourage retaining the site features to minimise site

damage and associated negative environmental impacts.

• Compliance Options: Demonstrate that the project complies with

at least two of the following measures:

• Site Contour: Retain site contour to an extent of at least 50%

of the site, including building footprint.
• Water Bodies and Channels: Retain 100% of water bodies and
channels existing on the site.
• Natural Rocks: Retain at least 50% of natural rocks, excluding
building footprint.
• Existing Topography / Landscape: Retain at least 10% of the
existing topography / landscape, without any disturbance
whatsoever.
• Existing Trees: Design to integrate trees with new
development, so as to preserve 75% of existing trees.

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 SUSTAINABLE ARCHITECTURE DESIGN

Passive Architecture SA Credit 3 Points: 3

• Intent: Adopt passive architectural design features to

minimise negative environmental impacts.

• Compliance Options: Option 1: Simulation Approach.

• The approach shall address the following aspects, but
not limited to:
• Climate-responsive concepts and design
features (Eg: orientation, skylights, light
wells, courtyard, shaded corridors, shading
devices, shading from trees & adjacent
buildings, pergolas, punched windows,
extended louvers, horizontal and vertical
landscaping).

• Passive cooling / heating technologies

(Eg: wind tower, earth tunnel, geothermal
technologies).

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 SUSTAINABLE ARCHITECTURE DESIGN
Passive Architecture SA Credit 3 Points: 3

Compliance Options: Option 2: Prescriptive Approach

• Exterior Openings: At least 80% of the exterior

openings (fenestration) have a Projection Factor*
of 0.5 or more *Projection Factor is a ratio of the
length of overhang projection divided by height
from window sill to the bottom end of the
overhang (must be permanent)
• Skylights: At least 5% of roof area have skylights
• Daylighting: 50 % of the regularly occupied spaces
with daylight illuminance levels for a minimum of
110 Lux (and a maximum of 1,100 Lux) in a clear
sky condition on 21st September at 12 noon, at
working plane (through simulation or
measurement approach)
• Passive Cooling / Heating Technologies: (Eg: wind
tower, earth tunnel, geothermal technologies)

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INFOSYS, HYDRABAD, INDIA

13
SITE SELECTION AND
PLANNING

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SITE SELECTION AND PLANNING

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 CASE STUDY
Avasara Academy Lavale, Pune
Avasara Academy, a residential school campus located in the rocky
valley of Lavale in Maharashtra, consists of six similar buildings, each
with classrooms on level 1 and 2, and student dormitory and faculty
residences on level 3 and 4. Its uncompromising architecture is simple,
climate-oriented, functional, sustainable, flexible, affordable,
aesthetical, visually exciting and inclusive.

Avasara, with high ambition, a modest budget, and scrupulous attention

to detail, achieves comfortable internal condition and nearly net-zero
energy status without the use of any mechanical system despite the
warm and humid climate. Additionally, use of local resources and
passive heating-cooling systems design reduced the initial construction
cost by approximately 7% and annual energy cost by nearly 80%.

Photovoltaic solar panels on the building roof provide electricity for

ceiling fans and electric lighting in the building, while solar water
heaters provide hot water for showers. Together, this accounts for
around 85% of the energy requirement of the building.

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Avasara Academy Lavale, Pune

Location Pune

Coordinates 18° N, 73° E

Occupancy Type Academic

Typology New Construction

Climate Type Warm and Humid

Project Area 11,148 m2

Date of Completion 2020

Grid Connectivity Grid-connected

Architect Case Design

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Site Layout & Planning

The six buildings four-storeyed

rectangular blocks, organized as per
the most favorable orientation, follow
the undulating hillside acknowledging
contours and seeking the best vistas.

The campus is characterized by an

inter-connected yet informal
arrangement around pathways, courts,
gardens and terraces.
CLASSROOMS

GROUND
WEL
POLISHING
L
POND REED BED 18
CHARCOAL FILTERS FILTERS
Façade, Envelope & Climate Responsive Massing

The building design articulates simple reinforced concrete structures, skilfully organising
the volumes in combination with shades & overhangs, and setting the stage for passive
climate strategy.

Articulated concrete construction includes the skeleton structure with reinforced

concrete floors and the prefabricated structural ceilings. This raw concrete along with
the locally sourced stone interior acts as an inert thermal mass; absorbing the solar
thermal energy during the day and releasing it again after a delay overnight, resulting in
a moderate, more consistent radiant temperature inside the building.

The reinforced concrete floors / ceilings project outwards a little, creating generous
overhangs which not only provides the facades horizontal articulation but also acts as a
form of brise soleil.

The façade is shrouded in bamboo screens with variations in the patterns based on the
façade orientation. These locally sourced and skilfully designed screens serve as sun
protection, thus preventing excessive heating of the interior from direct sunlight.

The projection / overhang results in spaces being slightly stepped back. The spaces are
attached to open corridors, deep verandas, generous semi-outdoor spaces, stairwells
and atrium, resulting in an extremely airy structure supported only in part by columns.

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Daylighting

• The building is partly covered in bamboo screens, partly by glass surfaces, or it remains
open, rendering a blur line between the sense of enclosure and openness.

• The bamboo screen and the lightly woven blades placed on the overhangs deploy a
second skin that provide privacy, reduce glare, and give a textural quality to the interior
and exterior through a delightful play of daylight and shadows, while unifying the
architectural scheme.

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Passive Ventilation Design

● The building is naturally ventilated using a combination of passive heating-cooling

systems, thus eliminating resource-draining mechanical systems.
● Passive heating-cooling systems are designed with earth ducts, structurally
integrated vertical cavities and solar chimneys to induce ventilation in each building,
lowering interior temperatures by 5-9°C during uncomfortably hot summer months.
● Earth ducts are 900mm dia concrete hume pipes laid between the building
foundation that run around 16 – 20 m in length underneath the building. Fresh
outdoor air sucked in these earth ducts is passively pre-cooled and then diffused into
the lower floor spaces at the floor level along the facades, enabling the air to
circulate freely in the middle of the buildings.
● Additionally, supply air enters the spaces through the strategically designed window
and the doorways.
● The vitiated air from all the spaces, due to convection, passively transfers through
the exhaust grills located at the ceiling level into three separate centrally located
exhaust cavities which are integrated in the structural core of the building and
eventually extend out as solar chimneys above roof level.
● These chimneys are wide, glazed on three sides with their rear concrete wall almost
5m high and are capped with louvered grills. This assembly is sun-driven that leads
the warm air out of the building, passively driving the entire air flow and providing
natural cooling throughout the building.

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22
Material Palette

The building material palette highlights use of raw

concrete, local stone and timber windows with
large expanses of glazing rounded off by bamboo
mats for shading on the exteriors, use of blockwork
walls, coloured mosaic floors, teak doors, and
various pastel hues on the interiors.

This mix of material textures was carefully selected

and meticulously crafted to complement the
surroundings. The palette focused on the longevity
of the materials and cost reduction by using
recycled materials.

The majority of timber windows are recycled from

demolished structures, blockwork partition walls
are burned from fly ash, floor mosaics are made
from the remains of marble quarries, majority of
doors are made of teak from demolition objects,
and the pastel hues use natural pigments – largely
contributing towards the sustainability goals of the
project.
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Material Palette 24
 WATER
CONSERVATION

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 1. Landscape Design
( WC CREDIT -1)
Intent: Design landscape to ensure minimum water consumption.
Compliance Option: Limit use of turf on the site to conserve water and
/ or ensure that landscaped area is planted with drought tolerant /
native / adaptive species.
● This credit is applicable only for those projects which have at
least 10% of the site area landscaped.
● Landscape areas over built structures such as basements,
podium, roofs, etc., can be considered for this credit
calculation

● The landscape here refers to soft landscaping, which includes

only pervious vegetation. Points are awarded as below:
● Drought tolerant species are those species that do not require
supplemental irrigation. Generally accepted time frame for
temporary irrigation is 1 - 2 years.
● Potted plants shall not be considered as vegetation.
● Areas planted with turf should not exceed a slope of 25 percent
(i.e. 4 to 1 slope).

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2. Management of Irrigation Systems (WC CREDIT -2)
Intent: Reduce water demand for irrigation through water
efficient management systems and techniques.
Compliance Options: Provide or install highly efficient irrigation
systems incorporating the features mentioned below: (Minimum
four features)
● Central shut-off valve
● Soil moisture sensors integrated with irrigation system
● Turf and each type of bedding area must be segregated
into independent zones based on watering needs
● At least 75% of landscape planting beds must have a drip
irrigation system to reduce evaporation
● Time based controller for the valves such that
evaporation loss is minimised and plant health is ensured NOTE:
● Pressure regulating device(s) to maintain optimal • This credit is applicable only for those projects which have at
least 10% of the site area landscaped.
pressure to prevent water loss
• Landscape areas over built structures such as basements,
● Any other innovative methods for watering podium, roofs, etc., can be considered for this credit calculation.

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 3.Rainwater Harvesting, Roof & Non-roof (WC CREDIT -3)
•Intent: Enhance ground water table and reduce municipal water
demand through effective rainwater management.
•Compliance Options:
-Design rainwater harvesting system to capture at least ‘one-day
rainfall*’ runoff volume from roof and non-roof areas.
- One-day rainfall can be derived from ‘percentage of average peak
month rainfall’ given in Table - 3.
-To arrive at average peak month rainfall, consider an average of at least
last 5 years peak month rainfall (of the respective year).

Table 3 - Criteria to arrive at ‘One-day Rainfall’ 28

4. Water Efficient Plumbing Fixtures (WC CREDIT -4)
Intent: Enhance efficiency of plumbing fixtures, thereby
minimising potable water use.
Compliance Options: Use water efficient plumbing fixtures (as
applicable) whose flow rates meet the baseline criteria in
aggregate. The total annual water consumption of the building
should not exceed the total base case water consumption
computed.
• Use of treated waste water/ captured rainwater shall not be
considered to show water savings. The baseline criteria is as
below:

* Full Time Equivalent (FTE) represents a regular building

occupant who spends 8 hours per day in the building. Part-
time or overtime occupants have FTE values based on their
hours per day divided by 8.

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5. Wastewater Treatment and Reuse (WC CREDIT-5)

Intent: Treat waste water generated on-site, to avoid polluting the

receiving streams by safe disposal. Use treated wastewater,
thereby reducing dependence on potable water.
Compliance Options: Wastewater Treatment: (2 Points) have an
on-site treatment system to handle 100% of waste water
generated in the building, to the quality standards suitable for
reuse, as prescribed by Central (or) State Pollution Control
Board, as applicable.
Wastewater Reuse: (3 Points) Use treated wastewater for at
least 25% of the total water required for landscaping, flushing,
and cooling tower make-up water (if the project uses water-
cooled chillers).
Points are awarded as below:

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6. Water Metering (WC CREDIT-6)
Intent: Encourage sub-metering to improve water performance of the
building, and thereby save potable water. Compliance Options:
Water Metering

Building-level Metering: (1 Point) Demonstrate sub-metering for at

least three of the following water use applications, as applicable:
• Municipal water supply
• Bore water consumption
• Treated waste water consumption
• Water consumption for landscape requirements
• Water consumption for flushing
• Water consumption for air-conditioning cooling tower makeup
• Any other major source of water consumption

Tenant-level Metering: (1 Point) (Applicable only for Tenant-occupied

buildings)
Demonstrate sub-metering for the following water use applications,
as applicable:
• Municipal water supply / Water consumption through bore-well
(Potable water)
• Water consumption for flushing (Non-potable water)
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CASE STUDY: RAJAPUSHPA PROVINCIA [IGBC Gold rated project]

● Location- Hyderabad, India

● Certification - IGBC Gold certified
Home
● Project - Residential

● It is designed and constructed relying on different types of green, sustainable and eco-friendly features.
Spread over a massive 24 acres of land, it is a unique project where the builders along with the
engineers and architects have made the maximum use of natural resources so that the future generation
can benefit.
● This large apartment project is developed as a green home to save energy, consume less water, and
recycle water.

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 Conserve water:

● Rajapushpa Provincia has water efficient plumbing fixtures, sewage treatment plants,
rainwater harvesting, and recycling and reusing of waste water, management of
irrigation systems, and water metering.
● The water from the kitchen sink and bathroom is recycled and used for the flush tank
to minimise water wastage. Whereas, the water from the roof and the internal roads
are collected in a sump and later used for watering the gardens and landscape.

Rainwater harvesting:

● Provincia has adopted the model of rooftop rainwater harvesting as it the best and
most effective way to treat and reuse rainwater for more important and appropriate
purposes.
● The treated water also acts as a great backup water supply for emergency
situations.

33
BUILDING MATERIALS
AND RESOURCES

34
Classified as
BMR MANDATORY REQUIREMENT 1
• Segregation of waste (post-occupancy)
• Sustainable building materials
• Organic waste management (post-occupancy)
• Handling of waste materials
• Use of Certified Green Building Materials, Products & Equipment

SEGREGATION OF WASTE (POST-OCCUPANCY )

•Intent-Facilitate segregation of waste at source to

encourage reuse or recycling of materials, thereby avoiding
waste being sent to landfills
•Compliance Options-

Case1 : Building level facility

Case2: Centralised facility
Provide separate bins to collect
dry waste and wet waste on all Provide separate dry and wet
the floors and common areas of waste bins at the
the building, as applicable. centralised facility

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 SUSTAINABLE BUILDING MATERIALS BMR CREDIT 1 POINTS: 1-8

•Intent- Encourage the use of building materials to reduce

dependence on materials that have associated negative
environmental impacts.
•Compliance options- 1. Building reuse
2. Reuse of salvaged materials
3. Materials with recycled content
4. Local materials
5. Wood based materials

1.BUILDING REUSE (1-2 POINTS )

•Ensure at least 50% (by area) of the structural and non-structural
(interiors) elements of the existing building are retained.
•Structural elements include columns, beams, floor slabs, exterior walls
etc.
•Non-structural elements include, interior walls, ceiling, flooring
materials, doors, windows, etc.

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2. REUSE OF SALVAGED MATERIALS (1-2 POINTS)
•Ensure at least 2.5% of the total building materials (by cost)
used in the building are salvaged or reused or refurbished.
•Common salvaged materials include furniture, doors,
cabinetry, brick and tiles.

3. MATERIALS WITH RECYCLED CONTENT (1-2 POINTS)

•Use materials with recycled content in the building such
that the total recycled content constitutes at least 10% of
the total cost of building materials.

37
4. LOCAL MATERIALS (1-2 POINTS)
•Ensure at least 20% of the total building materials used
in the building are manufactured locally within a distance
of 400 km.
•Local Materials are those which are manufactured
within a distance of 400 km.

5.WOOD BASED MATERIALS (1-2 POINTS)

•Ensure at least 50% of all new wood based materials
used in the building
•Salvaged wood based materials shall not be considered
under ‘Wood Based materials’ calculations
Rapidly renewable materials are agricultural products
that take 10 years or less to harvest

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ORGANIC WASTE MANAGEMENT(POST-OCCUPANCY) BMR CREDIT 2 POINTS: 1-2

•Intent- Ensure effective organic waste management, so

as to avoid domestic waste being sent to landfills and to
improve sanitation and health.
•Compliance Options- Install an on-site waste treatment
system for handling at least 50% of the organic and
landscape waste generated in the building.

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 BMR CREDIT 3 POINTS: 1
HANDLING OF WASTE MATERIALS (DURING CONSTRUCTION)

• Intent-Facilitate segregation of construction and demolition waste

at source to encourage reuse or recycling of materials, thereby
avoiding waste being sent to landfills.
• Compliance Options- Demonstrate that at least 75% of waste
generated during construction (as per owner / developer’s scope) is
diverted from landfills, for reuse or recycling.
• Construction waste here refers to civil & interior building waste
• Temporary materials such as materials used for formwork,
scaffolding, etc., shall not be considered for this credit calculation.
• Excavated earth & stones should not be considered under this
credit, as these are natural resources.

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USE OF CERTIFIED GREEN BUILDING MATERIALS, PRODUCTS & EQUIPMENT

BMR CREDIT 4 POINTS: 1-5

• Intent- Use certified green building materials, products, and
equipment, to reduce dependence on materials that have
associated negative environmental impacts
• Compliance Options- Ensure that the project uses at least
five passive or active green building materials, products, and
equipment that are certified by IGBC under Green Product
Certification Program.

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CASE STUDY: Sangath posh (IGBC Platinum rated project )

● Location- Ahmedabad, India

● Certification -IGBC platinum rated
project
● Project - Residential

42
 Salvaged rebars used in Salvaged rebars used in
95% material sourced from basement rafts basement rafts
manufacturers based under 400 kms

Color coded bins provided in

common areas
75% waste segregated during construction diverted to other sangath-
sites
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 INDOOR
ENVIRONMENTAL
QUALITY

44
Minimum Fresh Air Ventilation:
(IEQ Mandatory Requirement 1)

Intent: Provide adequate outdoor air ventilation, to avoid

pollutants affecting indoor air quality.

Natural ventilation:
● Natural ventilation is the process of supplying and
removing air through a space by natural means, it
can be achieved with openable Windows or vents.
● Natural ventilation and air movement can be simply
achieved by ‘Structural controls’ as it does not
depend on any form of External energy supply or
mechanical installation.

Three forms of natural ventilation are:

1. Through ventilation
2. Cross ventilation
3. Back to back ventilation

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1. Through ventilation:
In this method, the windows are opposite to each other, so that a
current of air may pass straight through the room.
2. Cross ventilation
In this method, the windows are so placed that a current of air
may pass diagonally across the room.
Cross ventilation is obtained by having windows in both sides of
the room, causing airflow across the space. Positive pressure on
Design Criteria for Openable Windows and / or
the windward and/or a vacuum on the lee side of the building Doors to the Exteriors
causes air movement across the room(s) from the windward to
the lee side, provided the windows on both sides of the room are
open.
3. Back to back ventilation:
Neither through ventilation nor cross ventilation takes place. It is
considered to be an unhygienic type of ventilation, since the same
air tends to be repeatedly used without being replaced.

Non Air-conditioned Spaces:

Provide operable windows and / or Doors to the exteriors, in all
regularly occupied areas, such that the operable area is designed
to meet the criteria as outlined in the Table below

46
 (IEQ Mandatory Requirement 2)
Tobacco Smoke Control

Intent: Minimize exposure of non-smokers to the

adverse health impacts arising due to passive
smoking in the building.

Compliance Options:
● Demonstrate that smoking is prohibited in the
building, and is in accordance with the
regulations of Ministry of Health & Family
Welfare, Government of India.
● In case the project has assigned outdoor
smoking areas, locate such areas at a
minimum of 7.6 meters from all outdoor air
intakes (entrance doors, window openings etc.)
● Alternately, compliance can be shown through
designated smoking rooms which capture and
remove tobacco smoke from the building.

47
CASE 1. Non-Residential Projects
● Confirm that smoking is prohibited in the portions of the tenant
space not designated as a smoking space, all other building areas
served by the same HVAC system, and the common areas used by
occupants.
● Ensure that ETS cannot migrate by either mechanical or natural
ventilation from other areas of the building.
● If the occupants are permitted to smoke, provide one or more
designated smoking rooms designed to contain, capture and
remove ETS from the building.
● At a minimum, each smoking room must be directly exhausted to
the outdoors, with no recirculation of ETS-containing air to
nonsmoking areas, enclosed with impermeable
● deck-to-deck partitions, and operated at a negative pressure
compared with surrounding spaces of at least an average of 5 Pa
(0.02 inches of water gauge) and with a minimum of 1 Pa (0.004
inches of water gauge) when the doors to the smoking rooms are
closed.
● Verify performance of the smoking room's differential air
pressure by conducting 15 minutes of measurement, with a
minimum of 1 measurement every 10 seconds, of the differential
pressure in the smoking room with respect to each adjacent area
and in each adjacent vertical chase with the doors to the smoking
rooms closed.

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CASE 2. Multi-Unit Residential Buildings

● Minimize uncontrolled pathways for ETS

transfer between individual residential units by
sealing penetrations in walls, ceilings, and floors
in the residential units and by sealing vertical
chases adjacent to the units.
● Weather-strip all doors in the residential units
leading to common hallways to minimize air
leakage into the hallway.
● Demonstrate acceptable sealing of residential
units by conducting a blower door test in
accordance with ANSI/ASTM, Standard Test
Method for Determining Air Leakage Rate by
Fan Pressurization.

49
CO2 monitoring (IEQ Credit 1) Points: 1

Intent: Continuously monitor and control carbon dioxide level in

the building to ensure occupant comfort and well-being.

• Accurate control of critical indoor environmental parameters

by a carbon dioxide monitor is not only essential for the well-
being and comfort of building occupants, but also has a major
impact on energy efficiency.
• A multitude of parameters can affect indoor air quality (IAQ)
from gases such as carbon dioxide, carbon monoxide and
volatile organic compounds to particulates, humidity and
bacteria such as legionella. Carbon dioxide is one of the greatest
variables affecting indoor environmental quality since it is
produced by people occupying the building and is also a good • Excess carbon dioxide levels can lead to tiredness and
indication of the general level of the other pollutants within a lack of concentration and can contribute to the
buildings. symptoms of Sick Building Syndrome such as
headaches, eye, nose and throat irritation, itchy skin
and nausea. CO₂ monitoring to determine carbon
dioxide levels is therefore an intrinsic part of indoor
environmental quality strategies such as demand
control ventilation.
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Day lighting (IEQ Credit 2) Points: 1-2

Intent:
Ensure connectivity between the interior and the exterior environment, by
providing adequate day lighting.

Compliance Options: The project can choose any one of the following
options or a combination, to show compliance:
Option 1 - Simulation Approach
Option 2 - Measurement Approach

Option 1: Simulation Approach Demonstrate through computer simulation

that 75% of the regularly occupied spaces in the building achieve daylight
illuminance levels for a minimum of 110 Lux (and a maximum of 1,100 Lux)
Areas with 1,100 Lux or more daylight illumination levels should not be
considered.
Option 2: Measurement Approach Demonstrate through daylight
illuminance measurement that 75% of the regularly occupied spaces in the
building achieve daylight illuminance levels for a minimum of 110 Lux.
Areas with 1,100 Lux or more daylight illumination levels shall be not
considered. Measurements shall be taken after installation of furniture,
equipment & systems at work plane height at 9 am, 12 pm, and 3 pm, on a
10-foot square grid. To show compliance, consider the average of the
measurements taken at 9 am, 12 pm, and 3 pm
51
Orientation of building
• The orientation of building is very important to
achieve maximum daylight
• If the length of the building is oriented in an East-
West axis, it will allow penetration of passive heating
or cooling within the building
• A North-South façade is better as it allows
penetration of good daylight by avoiding glare and
overheating.
• Designers could decide which rooms need direct or
indirect sun-light and requirement of the quantity of
heat loss or heat gain.

Methods of daylight
Windows and skylights
Clerestories
Atrium
Sawtooth
Light shelves

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Window design
Daylight availability at the center of a room or its rear are ascertained with
following assumptions:
• The interior of the room possesses the following reflection factors:
1. Walls: 45-50 percent;
2. Ceiling: 70-75 percent; and
3. Floor: 24-30 percent.
• The combined thickness of wall and width of louver is taken to be 60 cm;.
• The ground reflection factor is taken as 0.25.
• The average daylight factor equation can be used to estimate the
requirement window-to-wall ratio (WWR) for adequate day lighting.

● GLARE is a visual sensation caused by excessive and uncontrolled

brightness. It can be disabling or simply uncomfortable. It is
subjective, and sensitivity to glare can vary widely.
● Older people are usually more sensitive to glare due to the aging
characteristics of the eye. Disability glare is the reduction in visibility
caused by intense light sources in the field of view Discomfort glare is
the sensation of annoyance or even pain induced by overly

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Outdoor Views (IEQ Credit 3) Points: 1

Intent: Ensure connectivity between the interior and the exterior environment, by
providing adequate views.

Compliance Option: Achieve direct line of sight to vision glazing between 0.9 meters (3
feet) and 2.1 meters (7 feet) above the finished floor level, for building occupants in at
least 75% of all regularly occupied spaces. Also, the project shall comply with the
following criteria:
• The building occupants must not have any obstruction of views at least 8 meters (26.2
feet) from the exterior vision glazing.
(Or)
• The building occupants must have access either to sky or flora & fauna or both.

75% of all regularly occupied floor area must have at least two of the following four
kinds of views:
multiple lines of sight to vision glazing in different directions at least 90 degrees apart;
views that include at least two of the following:
(1) flora, fauna, or sky; (2) movement; and (3) objects at least 25 feet from the exterior
of the glazing;
● unobstructed views located within the distance of three times the head height
of the vision glazing; and
● views with a view factor of 3 or greater, as defined in “Windows and Offices; A
Study of Office Worker Performance and the Indoor Environment.”
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Low-emitting Materials (IEQ Credit 5) Points: 1-3

Intent: Encourage use of materials and systems with low VOC emissions, to reduce adverse health
impacts on building occupants.

Compliance Options: Demonstrate that the project complies with any three of the following categories:

Paints and Coatings

Use paints and coatings (including primers) with low or no VOC content (as specified in Table-9 given
below) for 95% of interior wall and ceiling surface area (as per owner / developer’s scope).

VOC Limits for Paints & Coatings

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Adhesives and Sealants
At least 75% of all adhesives and sealants, by volume or surface area, meet the VOC emissions evaluation AND 100% meet
the VOC content evaluation. To meet the 100% requirement for VOC content evaluation, a VOC budget may be used. The
adhesives and sealants product category includes all interior adhesives and sealants wet-applied on site.

VOC Limits for Adhesives

Flooring
● At least 90% of all flooring, by cost or surface area, meets the VOC emissions evaluation OR inherently nonemitting
sources criteria, OR salvaged and reused materials criteria.
● The flooring product category includes all types of hard and soft surface flooring (carpet, ceramic, vinyl, rubber,
engineered, solid wood, laminates), raised flooring, wall base, underpayments, and other floor coverings.
● Exclude subflooring (include subflooring in the composite wood category, if applicable. Exclude wet-applied
products applied on the floor (include in paints and coatings category).
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Wall panels
● At least 75% of all wall panels, by cost or surface area, meet the VOC emissions
evaluation, OR inherently none mitting sources criteria, OR salvaged and reused
materials criteria.
● The wall panels product category includes all finish wall treatments (wall coverings,
wall panelling, wall tile), surface wall structures such as gypsum or plaster,
cubicle/curtain/partition walls, trim, interior and exterior doors, wall frames,
interior and exterior windows, and window treatments.

Furniture
● At least 75% of all furniture in the project scope of work, by cost, meets the
furniture emissions evaluation, OR inherently nonemitting sources criteria, OR
salvaged and reused materials criteria.
● The furniture product category includes all seating, desks and tables, filing/storage,
free-standing cabinetry, workspaces, and furnishing items purchased for the
project.

Composite Wood
● At least 75% of all composite wood, by cost or surface area, meets the
Formaldehyde emissions evaluation OR salvaged and reused materials criteria.
● The composite wood product category includes all particleboard, medium density
fiberboard (both medium density and thin), hardwood plywood with veneer,
composite or combination core, and wood structural panels or structural wood
products.
● Exclude products covered in the flooring, ceiling, wall panels, or furniture material
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categories from this category
Occupant Well-being Facilities (IEQ Credit 6) Points: 1
Intent:
Provide occupant well-being facilities, to enhance physical,
emotional and spiritual well-being of building occupants.

Compliance Options:
Demonstrate that the project has occupant well-being
facilities (such as gymnasium, aerobics, yoga, meditation or
any indoor / outdoor games) to cater to at least 5% of
building occupants, through the day

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Case Study-The Energy Research Institute (TERI), Bangalore, India

Introduction : Established in 1974. The project is

designed to house an office block with workstations and a
small guest house attached to it. Concerned with
effective utilization of energy, sustainable uses of natural
resources, large scale adaptation of renewable energy
technology.

Location : located at domlur bus stop (3kms from

Bangalore airport road), amidst a residential area, park
and temple.

Orientation: building is oriented along ne-sw direction.

Sw is the primary wind and light direction for Bangalore.

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Case Study-The Energy Research Institute (TERI), Bangalore, India

Indoor environmental quality enhancement:

● Indoor Environmental quality is very well achieved with the help of non VOC Paints and local flooring material
with less embodied energy.
● Indoor air quality is very well maintained with effective technique and Use of cavity wall in south to heat up the
interior air.
● Occupant comfort is achieved with CONDUCTION & RADIATION as external agent BODY HEAT & AIR FLOW as
internal agent

● Plants are being used in the interior common connecting spaces for refreshment and air Circulation .
● Proper maintenances is taken care in the interior to make an HYGIENIC living
● North ligating is provided for glare less lighting system, and it's made to be used in the workspace areas.
● Mixed use of vegetation is been used to make the campus green and fresh .
● Solar Chimney plays a major role in maintain constant air flow in the interior
● Ventilation plays a major role in creating comfortness in the interior

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Ventilation Analysis:
● The primary winds blow from the south to north over the nallah, hence the building needs to react to this if,
the foul unhygienic air has to be prevented from entering the building .
● Thus, the development of the south wall was a prime design factor in achieving this purpose.
● Here the south wall has was treated as an independent system linking the rear walls of the building over a
cavity
● This cavity creates a negative pressure setting up the convectional currents. The entire systems work very
effectively in generating the desired reverse wind circulation.
● The blank wall carries a system of cudappa. The color black was deliberately chosen because of its heat
absorptive power, which is the highest among all colors.
● The working of the system is very simple. The sun’s rays heat the black south wall increasing the temperature
of the immediate environment around.
● This causes the air in the cavity to rise upwards naturally. These convectional currents are blown away by the
winds blowing south to north.

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INNOVATION AND
DEVELOPMENT

62
 INNOVATION AND DEVELOPMENT (ID)

ID Credit 1 Innovation in Design process

ID Credit 2 Optimization in structural design

DEVELOPMENTAL CREDIT
ID Credit 3 Water use Reduction for construction

ID Credit 4 IGBC Accredited Professional

ID Credit 1 Innovation in Design process

❏ INTENT: Provide design teams and projects an opportunity to be awarded points

for innovative performance in green building categories not specifically
addressed by the IGBC Green New Buildings rating system and / or exemplary
performance above the requirements set by the IGBC Green New Buildings
rating system.

❏ COMPLIANCE OPTIONS:

★ INNOVATION
Identify the intent of proposed innovation credit, proposed
requirement for compliance, and proposed documentation to
LIST OF BASE CREDIT ELIGIBLE FOR EXEMPLARY
demonstrate compliance, and the design approach used to meet PERFORMANCE
the required measures.
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ENERGY EFFICIENCY

EE Credit 2 Enhanced Energy Performance:

Owner-occupied Buildings: > 36%
Tenant-occupied Buildings: > 34%
Major Renovation Buildings: > 34%

EE Credit 3 On-site Renewable Energy: > 10%

EE Credit 4 Off-site Renewable Energy: > 75% (RECs)

BUILDING MATERIAL AND RESOURCES

BMR Credit 1 Sustainable Building Materials

❏ Building Reuse: > 95%
❏ Reuse of Salvaged Materials: > 7.5%
❏ Materials with Recycled Content: > 30%
❏ Local Materials: > 40%
❏ Wood based Materials: > 95%

BMR Credit 3 Handling of Waste Materials, During Construction: > 95%

INDOOR ENVIRONMENTAL QUALITY

IEQ Credit 3 Outdoor Views: > 95%

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ID Credit 2 Optimization in Structural Design
❏ INTENT:Encourage optimum structural design to reduce dependence on natural resources.

❏ COMPLIANCE OPTIONS:
Implement a comprehensive structural design philosophy to conserve steel and cement, as
compared to national and international practices, for the building type being designed, while
maintaining structural integrity.
Demonstrate a saving of at least 5% by weight of steel and cement.

TYPE OF OPTIMIZATION IN STRUCTURAL DESIGN The progression of a topology optimization

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 ID Credit 3 Water Use Reduction for Construction

❏ INTENT:Enhance water use efficiency, thereby minimizing the use of potable water for construction activities.
❏ COMPLIANCE OPTIONS
Demonstrate that the project has reduced at least 10% of the
potable water required for construction activities (concrete
mixing, plastering works and curing), as compared to national
and international practices, for the building type being
designed, with the use of:
1) Treated waste water
2) Admixture And curing compounds
3) Any other innovative measures
❏ Ensure that the quality of construction is not compromised by
reducing potable water requirement or by reusing treated
waste water.
(AND) ID Credit 4 Accredited Professional
❏ The treated waste water shall meet the quality standards
suitable for reuse during construction, as prescribed by: ❏ INTENT:Support and encourage involvement of IGBC
★ Bureau of Indian Standards (BIS) - Plain and Reinforced Accredited Professional in green building projects, so
Concrete (Code of Practice) IS 456 : 2000, Section 2 - as to integrate appropriate design measures and
Materials, Workmanship, Inspection and Testing, 5.4 - Water, streamline the certification process.
‘Table 1 - Permissible Limit for Solids’ ❏ COMPLIANCE OPTIONS
★ (OR) At least one principal participant of the project team
★ Central (or) State Pollution Control Board shall be an IGBC Accredited Professional.
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 CASE STUDY
KBL CORPORATE OFFICE,BANER,PUNE

❏ AREA-1,29,995 Sq.Ft.
❏ LOCATION-Baner,Pune
❏ TYPE-Corporate Office
❏ RATING SYSTEM-IGBC LEED India NC(Platinum Certified)
❏ On a master plan level the Campus of 4.85 acres houses a
corporate office block of a Lakh square feet and a clubhouse of
about 25,000 square feet. It also houses other utility buildings like
the energy block and the security blocks. The site has two access
roads with the main approach along the West side.
❏ The Corporate block is a G+3 structure. The design has been
conceived in a stepped form using a series of horizontal planes.
The first plane is a 10m cantilevered entrance canopy which
doubles up as a drop-off zone as the main visitors access. It also
gives a direct access to a 180 seater auditorium at the first floor.
The entrance gives glimpses of the main reception area and the
heritage room which displays the rich tradition and history of the
Kirloskar Group.

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INNOVATIVE DESIGN

❏ The region’s intense summer demanded a design that would harness the bright light
and block heat ingress.
❏ Moreover the idea of water as a concept connected subtly but interestingly with
both KBLs profile as water-pump manufacturers as well as the thought of providing
sunshades in the shape of water droplets.
❏ Quirky skylights punctuate the ceiling, filling the building with gentle light.
❏ The buildings most iconic feature is the collection of large umbrella-like shading
structures on the western facade. These cut out the harshness of the sun while
bringing soft light into the offices.
❏ Multiple miniature windows to the East provide cross-lighting while expansive glazing
to the North provide ventilation and even more light.
❏ The landscape design thoughtfully utilizes planting that have very low moisture
requirements.
❏ The innovative fabric cover used as a shading device for the building effectively
blocks out the majority of the heat while allowing light to filter through.

SOUTH
ELEVATION
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 EXTERNAL VIEW

The CMD and Board room open out into the COURTYARD WITH DAYLIGHTING
third floor terrace space which again is
This space is extensively landscaped with connecting pathways rendered green.
and bridges at upper floors.

69
Energy Efficiency EE Credit 1

Intent
Encourage use of eco-friendly refrigerants in the facility, thereby
minimising impact on the ozone layer.
Compliance Options
Demonstrate that refrigerants used in the buildings Heating,
Ventilation & Air-conditioning (HVAC) equipment are eco-friendly and
have low or no Ozone Depletion Potential (ODP) and Global Warming
Potential (GWP).
EE Credit 2
Intent:
Optimise energy consumption, to reduce negative environmental
impacts from excessive energy use.
Compliance Options:
❖ Case 1 - Air-conditioned Buildings:
Design the building to comply with ASHRAE Standard 90.1-2010

❖ Case 2 - Non air-conditioned Buildings:

(Prescriptive Approach) 3)Air-conditioning Systems (1 Point)
(Applicable only for Owner-occupied Buildings) 4)Heating Systems (1 Point)
1) Building Envelope 5)Fans (2 Points)
2) Lighting 6)Pumps & Motors(1 Point)
• Lighting Power Density (2 Points)
• Lighting Controls (1 point)
EE Credit 3

Intent: ❖ Occupied-buildings
Renewable energy generation for at least 2.5% of total
Encourage the use of on-site renewable technologies, to annual lighting energy consumption of the building
minimise the environmental impacts associated with the use (interior & exterior areas), including tenant-occupied
of fossil fuel energy. spaces.
Compliance Options:
❖ Owner Occupied-buildings
The environmental impacts associated with the use of fossil
fuel energy.
Intent:
EE Credit 4
Encourage the use of off-site renewable technologies, to minimise
the environmental impacts associated with fossil fuel energy use.
❖ Compliance Options
Option 1: Off-site Renewable Energy Investments
▪ Owner-occupied buildings: Renewable energy equivalent to at
least 50% of the total annual energy consumption of the building.

❖ Option 2: Renewable Energy Certificates (RECs)

➢ Owner-occupied buildings: Renewable Energy Certificates
(RECs) equivalent to at least 25% of the total annual energy
consumption of the building.
EE Credit 5
Intent:
Verify and ensure that the building equipment & systems are commissioned
to achieve performance as envisaged at the design stage.
Compliance Options:
The project shall comply with the following requirements:
▪ Report specific observations and variations

▪ Demonstrate that there is an agreement in place for post occupancy

commissioning by a third party.
Intent: Encourage sub-metering and continuous monitoring to identify improvement
EE Credit 6
opportunities in building’s energy performance.
Compliance Options:
❖ Case 1: Energy Metering: (1 point)
Demonstrate sub-metering for at least five of the following energy use applications,
as applicable:
• Interior & Common area lighting
• Exterior area lighting
• Municipal water pumping
• Ground water pumping
• Treated waste water pumping
• Renewable energy generation
• Power backup systems (Generators sets, Gas turbines, etc.,)
• Elevators, Escalators, Travelators, etc. ENERGY EFFICIENCY
• Any other energy consuming equipment and systems ▪ Fresh air monitoring system
▪ CO2 control and monitoring system
❖ Case 2: Building Management System: (1 point) ▪ Water management system
Demonstrate that the building management system is in place to control and monitor Also, commit to provide the annual total building
the following systems, as applicable: energy consumption data to IGBC.
• Air-conditioning management system
• Lighting management system
• Renewable energy management system
• Elevator management system
 THE ENERGY RESEARCH INSTITUTE, BANLORE

Introduction :
▪ Established in 1974.
▪ Project is designed to house an office block with workstations and a
small guest house attatched to it.
▪ Concerned with effective utiization of energy, sustainable uses of
natural resources, large scale adoptation of renewable energy
technology.
Location :
Located at domlur bus stop (3kms from bangalore
Airport road), amidst a residential area, park and temple.
Orientation:
▪ Building is oriented along ne-sw direction.
▪ Sw is the primary wind and light direction for bangalore.
Site feature:
▪ Long narrow site with roads on the eastern and
Northern sides.
▪ Western side hass an open ground.
▪ Southern side has an open drain.
▪ Site located adjacent to a foul smelling drain
Energy efficiency:
The elemental forces of earth, wind, fire and water are imperative
to the architectural design of the building. It opens towards the
northern side facilitating access to glare-free light. A solar wall
towards the south (drain side) of the building directs the flow of the
breeze over the building, which, in turn, creates a negative pressure
and pulls fresh air from the north into the building.

▪ SUN-for water heating , electricity generation . Creating a stack

effect using Solar Chimneys

▪ SKY-for daylighting and also as a heat sink

▪ AIR-to create convection currents within the building through
wind induced vents ,use of stack effects

▪ EARTH-for roof gardens and earth berms for insulation

▪ WATER-for rainwater harvesting, roof ponds and fountains for

humidification.

CONCLUSION:
▪ Sets a new standard of energy efficient, environmentally
conscious office space.

▪ Building conveys intelligent work of natural elements with the

building form to fulfill the goals of green building .
MUMBAI CHHATRAPATI SHIVAJI MAHARAJ
INTERNATIONAL AIRPORT

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 INTRODUCTION
● Chhatrapati Shivaji Maharaj International Airport, Mumbai (IATA:
BOM, ICAO: VABB), formerly known as Sahar International Airport,
is the primary international airport serving the Mumbai
Metropolitan Area, India. It is the second busiest airport in the
country.
● The airport has three operating terminals spread over a total land
area of 750 hectares (1,850 acres)
● The Mumbai International Airport Pvt Ltd (MIAL), which administers
the Chhatrapati Shivaji International Airport, has bagged the
prestigious Platinum rating of the Indian Green Building
Certification (IGBC), an officially on 2016
● MIAL previously held the Leadership in Energy and Environmental
Design (LEED) India Design Gold Rating awarded jointly by US Green
Building Council (USGBC) and IGBC, awarded in 2014, for the design
of the T2 terminal

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 Location - Chhatrapati Shivaji International Airport, Terminal 2,
Navpada, Area, Vile Parle, Mumbai, Maharashtra 400099 , India

Architect - Skidmore, Owings & Merrill

CARBON MANAGEMENT
● Being an environment sensitive corporate, GVK MIAL has identified the non-
discounted requirement to make efforts in reducing emissions with an
objective of environment protection. To combat the challenge of climate
change, the organization has taken a goal to reduce 25% of carbon emissions
per passenger from the direct fuel consumption and indirect energy
purchase for operations by the year 2020 against base year 2014. This goal is
further segregated into smaller objectives that complement daily operation
without compromising on the basic objective of customer satisfaction.
● Carbon Accounting & Management System: – In year 2011, MIAL become the
first airport in India to account and verify its Greenhouse gas inventory in
compliance with the international standard ISO
● MIAL has implemented Carbon Accounting and Management System (CAMS)
to measure, report and reduce its Greenhouse gas emissions.
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 OTHER ENERGY REDUCTION INITIATIVES BY MIAL
The company was awarded the certification for attaining an industry benchmark for exemplary work in the areas of
environmental management (water conservation, waste management, and greenhouse gases emission), energy
management (efficiency and renewable energy), Recycling (material conservation), and other green initiatives
undertaken by the company.
SOLAR POWER
● Despite being a space constrained airport, the
Mumbai International Airport tries to utilize every
inch of space it has.
● By strategically placing solar panels on the top of old
terminal building and other structures, MIAL has
been able to create infrastructure for generation of
2.56 MW solar energy. This will help in reducing
about 1,330 tons of carbon emission annually.
● The airport has plans to enhance its solar energy
capacity to 5 MW in coming two-three years.

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ORGANIC WASTE RECYCLING
•In line with the airport’s green initiatives, MIAL installed an
organic waste converter to convert the food waste generated
from the airport operations into organic manure, which is then
used to nourish thousands of plants within the airport.
•The converter boasts of a 1MT/day capacity (single shift
operation), with a shredder installation for the garden and other
organic food wastes.

WATER RECYCLING
•MIAL is equipped with sewage treatment plants with collective
capacity of 15 MLD. The sewage generated from terminal
buildings and landslide activities are being treated at state-of-art
STPs of Terminal 1, 2 and cargo.
•The wastewater recycled is used for horticulture activities,
flushing toilets and cooling medium in the air-conditioning
systems of major airport buildings.

80
 MONITORING AND MANAGING NOISE TO REDUCE IMPACT
•GVK CSIA applies a balanced approach for identifying and analyzing aircraft noise levels in order to reduce its impact on the
surrounding community.
•In order to accurately assess the noise impact of aircraft operation and demonstrate compliance with the latest national and
international aviation legislation, the airport installed a comprehensive noise monitoring system called ‘Noise Desk”. Three noise
monitoring terminals are installed in and outside of airport premises. This web-based monitoring system monitors, examines and
helps to take actions to mitigate the sound levels by efficiently implement noise abatement procedures and programs at the
airport.
FLOWER & PLANT SHOW

MIAL has been successfully organizing the flower shows since

2014 in association with Mumbai Rose Society to foster the spirit
of gardening and greenery in urban living landscape and to
encourage green culture amongst the society.

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CONCLUSION

•GVK MIAL not only holds sustainability significant to the

management of economic, environmental and social risks,
but also associates it as the focal point of its business
strategy. The vision, mission and core values clearly reflect
company’s commitment towards its diverse stakeholders.
•With a holistic approach towards every aspect of
sustainability, GVK MIAL aims to create an efficient, safe and
healthy environment for all its stakeholders. Such initiatives
not only contribute significantly towards achieving high
energy productivity and saving costs but also help in creating
industry benchmarks.

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References
https://igbc.in/igbc/redirectHtml.htm?redVal=showratingSysnosign

https://igbc.in/igbc/redirectHtml.htm?redVal=showAboutusnosign

https://igbc.in/igbc/redirectHtml.htm?redVal=showGreenNewBuildingsnosign

https://igbc.in/igbc/html_pdfs/abridged/IGBC_Green_New_Buildings_Rating_System_(Ve
rsion_3.0_with_Fifth_Addendum).pdf

https://igbc.in/igbc/html_pdfs/abridged/GBC_Green_New_Buildings_v3.0-
Addendum_(Technical)_Dec_2014.pdf

https://igbc.in/igbc/html_pdfs/abridged/Recommendations%20of%20IGBC-
ISHRAE%20Committee_Guidelines%20for%20Simulating%20Base%20Case_March%20201
8.pdf

https://igbc.in/igbc/redirectHtml.htm?redVal=showGreenNewBuildingsnosign#Benifits

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THANK YOU

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