Green bldgs 19 12 16

energy efficient/ GREEN BUILDING
UshaBatra, AdditionalDG, WR-I, CPWD, Mumbai

There is no doubt that SOMEOF THE ancient buildings were the most green
buildings and in harmonywithnature .
Energy efficient, Use of local materials, Indoor environment quality

Taj Mahal, built more than four hundred years ago can
accommodate 10,000 people with no suffocation.

Fort / Jehaz mahal in
Mandu has elaborate
rainwater harvesting
techniques

SHIFT FROMANCIENT TO MODERN
• Urbanisation and Industrialization changed traditional sustainable practices
• The insatiable thirst for progress and comfort at- any-cost, altered the
equation with nature for ever.
• Deforestation to accommodate increased population, damaging
environment.
• Concrete, steel, glass and later plastics became the dominant construction
materials replacing stone and wood of yesteryears.
• Untreated water, effluents from chemical industries and organic waste were
discharged into rivers and water bodies, destroying the sources of domestic
water, giving rise to environmental concerns.
• Power supply, artificial lighting, water supply and disposal, thermal
environmental controls within built environment were desired and obtained

CONCERN FOR CLIMATE CHANGE
• As per the Intergovernmental Panel on Climate
Change (IPCC) 2014, the consumption of natural
resources could double or even triple by 2050.
• Concern for climate change and diminishing natural
resources are key challenges for the decades to
come. Everywhere in the world, countries are
implementing policies to reduce greenhouse gas
emissions.
• Modern facilities provide comfort, performance and
safety while posing challenges to sustainable
development, resource efficiency and climate
change.

India accounts for around 4.1 percent of global greenhouse
gas emissions
india has ratified paris climate deal on 2.10.16 -- 62nd country
7

NEED FOR GREENBUILDINGS
• There is no denying the fact that human habitat is an
essential part of a civil society but at the cost of nature.
• The natural resources are limited and depleting very fast.
• Global CO2 emission is growing at 1.3% per year.
• Energy in all forms generated for use by man is
continuously getting more expensive and becoming scarce
in availability.
• Thus we must enforce measures of sustainability and live
in harmony with nature.
• The fundamentals of the green / sustainable design
approach are reducing the requirement, consumption and
wastage of the resources, selecting ecologically
sustainable materials, reusing and recycling them and
utilizing renewable energy sources to generate energy on
site.

NEED FOR GREENBUILDINGS
By 2050, the built foot print of India will be four times the current mass.
We need to acknowledge the basic reality that the building industry on
one hand uses 40% of total energy, 42% of water and 50% of raw
materials; and on the other hand it is responsible for 50% air pollution,
42% green house gases, 50% water pollution, 48% solid waste and
50% CFC (chlorofluorocarbons).
Green buildings will contribute towards cutting down energy and water
consumption to less than half of the present conventional buildings, and
may completely eliminate the construction and operational waste
through recycling.

DEFINITION OF GREEN BUILDING
• Standard definition of a
green building is that it
optimises energy
efficiency, uses less
water, conserves
natural resources,
generates less waste
and provides healthier
spaces for occupants,
as compared to a
conventional building.

GREEN BUILDING CONCEPT
 GOOD ARCHITECTURAL DESIGN
 ENERGY EFFICIENCY
 WATER EFFICIENCY
 CONSERVATION OF MATERIALS AND
RESOURCES BY USE OF PRODUCTS MADE
FROM WASTE
 GREEN BUILDING MATERIALS
 INDOOR ENVIRONMENTAL QUALITY
 USE OF RENEWABLE ENERGY / SOLAR PV

SALIENT FEATURES OF Green Building
• Minimal disturbance to existing landscape and site
condition.
• Efficient use of water and water recycling.
• Use of energy efficient and eco-friendly equipments.
• Use of recycled and environmental friendly building
materials.
• Use of non-toxic materials.
• Effective control and building management systems.
• Ideal indoor air quality for human safety and
comfort.
• Use of renewable energy.

DESIGN OF GREEN BUILDING
• Appropriate orientation & shape of the building with
respect to sun and wind direction.
• Appropriate WWR for light & ventilation i.e. design that
increases daylight to reduce the need for daytime
lighting.
• Shading devices & Landscaping to allow the desirable
sun and cut-off the non- desirable sun as well as divert
the wind direction wherever required. It is an important
element in altering the micro-climate, provides buffer for
heat, sun, noise, traffic, and airflow .
• Use of balconies, verandahs, courtyards, wind towers,
skylights, cross ventilation and night ventilation.
• Use of Green building materials and technology.
• Shading of walls and roof.

SHAPE OF THE BUILDING
The lesser the perimeter, the lesser is the heat gain from
solar as well as conduction.
The depth of a building also determines the requirement
for artificial lighting. The greater the depth, higher is the
need for artificial lighting.
The circular geometry has the lowest perimeter as well
as S/V ratio thus is most energy efficient in composite
climate.

ORIENTATION
In hot zone (Hot & Dry, Hot & Humid) the building has
to be oriented North- South.
In cold zone If the long axis
of the building makes an
angle of 30 with E-W
direction, it receives sun
heat for maximum duration.

APPROPRIATE WWR FOR LIGHT& MINIMISING HEAT
INGRESS
Design that increase daylight and reduces the need
for daytime artificial lighting.
Lowest energy consumption
is in the case of WWR 10%.
But electricity consumption
increases due to artificial
lighting
Minimum electricity
consumption with
sufficient daylight is in
the case where WWR is
20-30%.

SHADING DEVICES
• North - no shading is required.
• South - permanent shading required as sun faces most
part of the day.
• East and West - preferable to design movable shading
devices.
• Walls and roof can be shaded in many ways e.g. plants,
solar panels, louvers, paragolas etc. for energy-
efficiency.
External shading devices need to be designed according to
the orientation of facade.

PASSIVE FEATURES FOR ENERGY EFFICIENCY
• Buildings in different climatic zones require different passive
features to make structures energy-efficient.
• In hot and dry zone e.g. Jaisalmer, Jodhpur, it is imperative to
control solar radiation and movement of hot winds by providing
shading, reducing exposed area, controlling and scheduling
ventilation, and increasing thermal capacity. The presence of “water
bodies” is desirable as they can help increase the humidity, thereby
leading to lower air temperatures.
• In warm and humid zone such as Mumbai, Chennai and Kolkata,
main design criteria are to reduce heat gain by providing shading,
and promote heat loss by maximizing cross ventilation. Dissipation
of humidity is also essential to reduce discomfort.
• In moderate zone e.g Pune and Bangalore it is desirable to reduce
heat gain by providing shading, and to promote heat loss by
ventilation.
• In cold climate zone, generally, the northern part main design criteria
are to resist heat loss by insulation and controlling infiltration.
Simultaneously, heat gain needs to be promoted by admitting and
trapping solar radiation within the living space.
• In composite zone, such as Delhi, Kanpur and Allahabad. The
design criteria are more or less the same as for hot and dry climate
except that maximizing cross ventilation is desirable in the monsoon
period

Energy consumption in buildingsector
• Residential and commercial buildings account
for almost 29% of total electricity consumption.
• Planning and Construction of Energy efficient
buildings and carrying out major retrofits could
save 2988 MW of generation capacity from
2010 to 2030.
• This can further be complemented by
constructing net zero buildings and making
best use of renewable resources like solar PV
21

Consumption andpossible savings in residential sector
Fans consume 34% energy
Lighting consumes 28% energy.
Possible reduction
by Energy efficient fans 20-40%
by use of CFLs & LEDs 20-40%
22

Consumption and possible savings in commercial
sector
Possible reduction
HVAC - 20-60%
Lighting - 20-50%,
Electronic & others -
20-70%.
Consumption
23

ENERGYEFFICIENCY OF GREEN BUILDING
As per report of (Confederation of Indian Industry)
CII, GREEN BUILDINGS save energy to the extent
of 40-50% and water to the extent of 20-30%.
Envelope alone can contribute to 50% of this,
meaning thereby that Energy saving potential of
Energy efficient envelope alone is to the extent of
20-25% and is the permanent source of saving not
requiring any performance check thereby reducing
the demand for air conditioning.

DESIGN OF ENERGY EFFICIENT ENVELOP FOR GREENBUILDING
The primary components of building envelope which affect the
performance of a building, are:
a) Walls,
b) Roof,
c) Fenestration (openings with or without glazing)

Heat gain of Various elements
Contribution of Various building components to
heat gains
• Glazing conduction 55%
• Roof conduction 16%
• Wall conduction 3%
The %age of walls and roof will vary depending upon height &
area of the building
• Internal gains i.e light, people & computers 26%
Internal gains can be controlled to some extent
by efficient lighting equipment, whereas all other
gains can be controlled by Efficient Envelope
design.

Walls are a major part of the building envelope, which are exposed
to external environment conditions such as solar radiation, outside
air temperature, wind and precipitation.
They have major impact on indoor thermal comfort in naturally
ventilated buildings and on cooling loads in air conditioned buildings
Thermal performance of walls can be enhanced by providing
Thermal Insulation , Increasing thickness of wall , providing Cavity
Walls & light coloured surface finishes .
Wall Assembly U-Factor and R-value (of Insulation alone) required
as per ECBC in different climate zones are given below.
Climate Zone Hospitals, Hotels, Call Centers (24-Hour) Other Building Types (Daytime)
Maximum U-factor of the
overall assembly
(W/m2.K)
Minimum R-value of
insulation alone (m2
.K/W)
overall assembly
(W/m2.K)
Minimum R-value of
.K/W)
Composite U-0.440 R-2.10 U-0.440 R-2.10
Hot and Dry U-0.440 R-2.10 U-0.440 R-2.10
Warm and Humid U-0.440 R-2.10 U-0.440 R-2.10
Moderate U-0.440 R-2.10 U-0.440 R-2.10
Cold U-0.369 R-2.20 U-0.352 R-2.35
WALLS

Thermal performance of roof can be enhanced by providing Roof
insulation -over-deck /under-deck.
Over-deck insulation is considered advantageous over under-deck
insulation as it stops the heat from reaching the slab itself.
Performance can be further enhanced by use of Highly reflective &
emissive materials, roof coatings, broken china mosaic terracing, cool
colours & Green roof systems.
Roof Assembly U-Factor and Insulation R-value Requirements as per
ECBC are given below.
Climate Zone 24-Hour use , Hotels, Call Centers etc. Daytime use buildings Other Building Types
overall assembly
(W/m2.K)
Minimum R-value of
.K/W)
Maximum U-factor of
the overall assembly
(W/m2.K)
Minimum R-value of
.K/W)
Composite U-0.261 R-3.5 U-0.409 R-2.1
Hot and Dry U-0.261 R-3.5 U-0.409 R-2.1
Warm and Humid U-0.261 R-3.5 U-0.409 R-2.1
Moderate U-0.409 R-2.1 U-0.409 R-2.1
Cold U-0.261 R-3.5 U-0.409 R-2.1
ROOF

FENESTRATION
• The most vulnerable part of the building envelop is windows and
glazed areas as they contribute to 55% of heat gains. Windows are
required to bring inside natural daylight and wind. However, with
light it also brings in glare & heat. Proper location, sizing and
detailing of windows along with shading devices is therefore a very
important aspect of energy efficiency.
• Vertical Fenestration U-factor (W/m2.K) and SHGC (solar heat gain
co-efficient) Requirements have also been specified by ECBC in
relation with WWR i.e. (window to wall ratio) which is very important
for India, especially in hot climate .
WWR≤ 40% WWR≤60%
Climate Maximum U-factor Maximum SHGC Maximum SHGC
Composite 3.30 0.25 0.20
Hot and Dry 3.30 0.25 0.20
Warm and Humid 3.30 0.25 0.20
Moderate 6.90 0.40 0.30
Cold 3.30 0.51 0.51

CASE STUDY OF USAGE OF MORE GLASS
CAMPUS FOR CBI AT GHAZIABAD ; LIBRARY BUILDING
Building with covd. Area of 1455 sq. m on each floor. Air conditioning load
became 3 times due to use of excessive glass.

WillTherebe Enough WaterforEveryone?

REDUCE, REUSE ANDRECYCLE Water
• Reduce the demand by
avoiding wastage, avoid
leakage by repair and
use of low flow fixtures
• Reuse rain water / rain
water harvesting.
• Reuse by preservation
and creation of Water
bodies
• Recycle grey water for
use of make up water
tank for chiller plant,
agriculture and flushing.

PARAMETERS TO DETERMINE GREENBUILDING
MATERIALS
 EMBODIED ENERGY
 WASTE CONTENT
 LIFE CYCLE DURABILITY
 MAINTAINABILITY
 TOXICITY I/C DURING FIRE
 SAFETY DURING INSTALLATION/USE, FIRE,
EARTH QUAKE ETC.
 LOCAL AVAILABILITY
 ENERGY REQUIREMENTS DURING ITS USE
 RECYCLABILITY

PRODUCTS
MANUFACTURED
FROM WASTE

Smart building skins
Pair of Abu Dhabi
Towers. Double skin-
with inner layer as thin
glass & outer layer in
fibre glass. The outer
layer opens & closes
in response to the
temperature of the
façade..
Facade that eats
smog. The material
contains Titanium
dioxide, which when
comes in contact
with air eliminates
pollutants. Used in
Hospital in Mexico.
Provides clean air for
patients inside.
In Melbourne, facade
of small sandblasted
glass circles, each
fixed to a central rod.
Based on the humidity
and temp. inside the
building, pivot
automatically moves
to facilitate air flow.

SOLAR PV POTENTIAL
• Limitless
• Clean
• Everywhere
• Free
Not even one
percent of India’s
total solar energy
potential has been
harvested till date,
Confederation of
Indian Industry (CII)
has revealed.
National Institute
of Solar Energy has
estimated India's
solar power
potential as 749
GW.
43

SOLAR ROOFTOP
Solar energy is the most
secure of all sources since
it is abundantly available.
Theoretically, a small
fraction of the total incident
solar energy, if captured
effectively, can meet the
entire country’s power
requirements.
Presently, 360 MW of solar
rooftop projects have been
sanctioned by MNRE and
49.677 MW have been
commissioned.
44

COMPLETE BLDG WITH SOLAR PANEL CLADDING IN MANCHESTER

Solar Roof Tiles
Built to resemble
traditional roof tiles,
solar roof tiles — or
solar shingles — are
thin, photovoltaic (PV)
sheets that can replace
or lay on top of existing
shingles. Just like solar
panels, solar roof
shingles capture energy
from sunlight and can
be installed in any
climate or environment.

RENEWABLE ENERGY INITIATIVEs BY CPWD
• All buildings have to be minimum 3 star
GRIHA rated with solar rooftop panels and
energy efficient fittings.
• Construction of Net zero energy buildings.
• Installations of solar roof top PV in all
existing major buildings.
47

ENERGY SAVINGS, COST AND PAY BACK PERIOD

Building
Built-in
Area (m2)
Energy consumption
(kWh)
Rating
achieved
EPI
(kWh/ m2)
conventional
LEED
Designed
% reduction
CII-Godrej
GBC,
Hyderabad
1,858 350,000
130,000
(63%)
Platinum
(56 points)
70
ITC Green
Centre,
Gurgaon
15,794 3,500,000
2,00,000
(45%)
Platinum
(52 points)
127
Wipro,
Gurgaon
16,258 4,800,000
3,100,000
(40%)
Platinum
(57 points)
191
ENERGY SAVING IN GREENBUILDINGS

s.
no
.
building Built up
area,sqf
t
rating %
incr
eas
e in
cost
Pay
back
period
(yrs)
1 CII_Godrej,
Hyderabad 2004
20000 Platinum
(56 pts)
20 7
2 I TC green,
Gurgaon
2004
170000 Platinum
(52 pts)
15 6
3 Wipro, Gurgaon
2005
175000 Platinum
(57 pts)
8 5
4 Grundfos Pumps,
Chennai
40000 Gold
(42pts)
6 3
INCREASE IN COST& Pay back period

GREEN RATINGSYSTEMS
• Tools to bring momentum in achieving energy efficiency.
Fifteen have been identified worldwide- CASBEE, Green
Star and LEED are quite common. Four criteria's i.e.
Energy efficiency, indoor air quality, water efficiency &
Use of recyclable, renewable, materials, are common to
all.
• The country has currently two rating systems namely,
LEED (Leadership in Energy and Environmental
Design) and GRIHA (Green Rating for Integrated
Habitat Assessment).
• GRIHA does not accept projects in which WWR is more
than 60% as it is not suitable for Indian climate, (though
even 60% appears to be on higher side ) whereas LEED
rating system does not follow this criterion.

TYPES OF GRIHA
1. SVA GRIHA (Small Versatile Affordable GRIHA) For less
than 2500 sq m built-up area.
2. GRIHA For more than 2,500 sq m.
3. GRIHA LARGE DEVELOPMENTS
All projects with total site area greater than or equal to 50
hectares
a large (mixed–use) townships:
b educational and institutional campuses
c medical colleges and hospital complexes (eg: AIIMS)
d special economic zones
e hotels/ resorts
4. GRIHA-PRAKRITI For existing school buildings in India.

SVA GRIHA
• SVA GRIHA (Small Versatile Affordable GRIHA) is
applicable only for projects which are less than 2500
sq m built-up area. Any building, except for a factory
building, is accepted under the SVAGRIHA rating
system.
Process
• Registration
• Submission of drawings and other documents .
• Assessment/review as per SVAGRIHA
• Feedback to project team
• Site visit and due diligence check- post construction
• Evaluation by a GRIHA Evaluator and Award of rating
• 25-30 *, 31-35 **, 36-40 ***, 41-45 ****, 46-50 *****

GRIHA
GRIHA rating system consists of 34 criteria .
Eight of these are mandatory, four are partly mandatory,
while the rest are optional. Each criterion has a number of
points assigned to it.
All buildings more than 2,500 sq m, (except for industrial
complexes), which are in the design stage, are eligible for
certification under GRIHA.
Buildings include: offices, retail spaces, institutional
buildings, hotels, hospital buildings, healthcare facilities,
residences, and multi-family high-rise buildings.
PROCESS includes registration, documentation and
evaluation
51-60 *, 61-70 **, 71-80 ***, 81-90 ****, 91-100 *****

GRIHA LARGE Developments
All projects with total site area greater than or equal to 50 hectares.
1. Large (mixed–use) townships:
• Housing complex by builders
• Housing complexes by urban development organizations
• Housing board and Public Sector Undertaking Townships
• Plotted developments with part construction by the developer
2. Educational and institutional campuses
3. Medical colleges and Hospital complexes (eg: AIIMS)
4. Special economic zones
5. Hotels/ resorts
These are evaluated in six different sections as listed below:
• Site Planning
• Energy
• Water and waste water
• Solid waste management
• Transport
• Social

• Each section comprises of two parts: Quantitative
and Qualitative except Social parameter to be
evaluated as only qualitative.
• Finally the net impact on quantitative and qualitative
parameters (In and Iq respectively) will be totalled
and compared against the base case impact of 100
per cent.
• The following formula will be used for the same:.
• It = In (design case) + Iq (design case) x 100
In (base case) + Iq (base case)
• 75-66 *, 65-56 **, 55-46 ***, 45-36 ****,
35-25 *****
GRIHA LARGE Developments cont….

GRIHA-Prakriti
• It will be applicable only for existing school buildings.
• The rating system has 16 criteria.
• The criteria are divided into 6 broad categories namely:
energy, comfort, water, trees, solid waste management, and
social.
• It will be mandatory to attempt certain points under each sub-
group.
• The total points that a project can achieve are 50
• The rating will be done on a 1-5 star scale.
PROCESS CONSISTS OF
1. Registration
2. Collecting data and filling up the forms
3. On-site audit
4. Final review –
5. Award of rating
• 25-29 *, 30-34 **, 35-39 ***, 40-44 ****, 45-50 *****

3/19/2017
SIXTH FLOORPLAN
NORTH BLOCK(G+7)
SOUTH BLOCK(G+6)
STATE MINSTER
AREA=165.00 SQ.M
E
CONF.ROOM
CAP. 40P
OFFICE
(CARPET AREA=224.00 SQ.M)
OFFICE VISITOR LOUNGE
IFS(I,II)
132
REFUGE
AREA
REFUGE
AREA
C DRECORD ROOM
AREA=230.00 SQ.M
EAP
74
FP&FIC
86
EI
78
WL
138
AHU
PANTRY
LIFT &
STAIRCASE
LOBBY
TOILETS + AHU+ PANTRY
AREA=12.00 SQ.M
OFFICE
AREA=400.00 SQ.M
TOILETS
LIFT &
STAIRCASE
LOBBY
OFFICE(PART OF 'C')
AREA=110.00 SQ.M
A
FE
70
PE
54
OZONE
106
AREA=235.00 SQ.M
TOILETS + AHU+ PANTRY LIFT &
STAIRCASE
LOBBY
B
E-GOV
40
AGMUT
18
AREA=210.00 SQ.M
TOILETS + AHU+ PANTRYLIFT &
STAIRCASE
LOBBY
LEGEND
OFFICE SPACE
TOILETS, AHU,PANTRY
LIFT LOBBY, STAIRCASE & CIRCULATION
PUBLIC SPACES(AUDI.,CAFETERIA,YOGA,LIBRARY,GYM,RECREA.)
OFFICE SPACE (MINISTER'S,SECY.,DGF,ADGF,SPL/ADDL SECY.)
UTILITY(STORES,RECORDROOM,BANK)
SIXTH FLOOR PLAN
NOT USEABLE(VOIDS,TERRACES,REFUGE AREA,ELECT. PANELS)
TERRACE GARDEN

66
CROSS VENTILATION AT THE MICRO
LEVEL THROUGH OPENINGS
R O A D
Building configurations for natural ventilation
PROJECTIONS INTO THE CENTRAL SPACE FOR
SHADING + Shading by Passages

67
Natural ventilation due to stack effect
AIR SHAFTS ANDConnection with Nature
-Respecting the Eco-logic of the site. Building Punctures to Aid Cross Ventilation

UNIQUE FEATURES
• FIRST EVER BUILDING IN GOVERNMENT SECTOR;-
• TARGETED ON BOTH - 5 STAR GRIHA AND LEED PLATINUM
RATED GREEN BUILDING.
• BUILDING OF THIS MAGNITUDE (30,914 M² PLINTH AREA)
TARGETED AS “NET - ZERO” ENERGY DEMAND BUILDING .
• RENEWABLE ENERGY GENERATION OF THIS MAGNITUDE (900
KWP OF SOLAR PV CELL SYSTEM) DONE WHOLLY ON-SITE
(ROOFTOP AND CANTILEVERS AT TERRACE AND 4TH FLOOR
LEVEL) WITH HIGHEST EFFICIENCY SOLAR PV PANELS.
• HIGHEST ENERGY SAVINGS BY A BUILDING OF ITS SIZE (55%)
AGAINST THE BASELINE BENCH MARK E.P.I. (ENERGY
PERFORMANCE INDEX) AS PER GRIHA CRITERION 14, OF 110
KWH/M²/YEAR, TO A TARGETED E.P.I. OF 50 KWH/M²/YEAR.
68

UNIQUE FEATURES CONTD…..
• Chilled Beam system of HVAC.
• Geo Thermal Heat Exchange system.
• Regenerative Lifts.
• Fully Automated Car Parking in
basements with Zero surface parking .
• Bio Diversity Park.
69

70
UNIQUE FEATURES CONTD…..
• A Net Zero Energy Building ; Energy demand and
generation of building is 14 lakh KWH
• Energy Efficiency
– Light Power Density achieved is 5 watt/sqm as
against 11.8 watt/sqm of ECBC 2007 thus saving in
energy > 50% over conventional building
– AC load designed as 450Sft/Tr as against 150sft/Tr
in conventional building.
– Electrical load designed as 4.3 W/Sft as against
10W/sft in conventional building
• Water efficiency
– Low discharge fixture reducing water demand by
approximately 70% over conventional fixtures.
– 100% Waste water is recycled after treatment for use
in irrigation and HVAC plant.

71
Salient Features
 Natural ventilation
 Solar power generation
 Solar passive envelope design including walls , roof
and fenestration.
 Efficient electrical equipment as per ECBC 2007
 Waste water recycling for Cooling Tower
 Rain water harvesting
 Geo thermal technology for heat rejection of AC system
 Design temperature: 26º C (S) / 20º C (W)

72
Energy Conservation Measures
• High Efficiency Solar Panels for Net Zero ( 20%)
• Energy efficient T-5 and LED Fixtures.
• Water cooled chillers, double skin air handling
units with variable for heat rfrequency drives
(VFD)
• Geo thermal heat exchange ejection from Air-
conditioning system.
• Innovative Chilled Beam system for cooling.
• Overall Design Load optimization.

73
Water Conservation Measures
• Low discharge water fixtures
• Low water demand native plants in
landscaping
• Drip irrigation for green areas
• Recycling of waste water for reuse in
– Flushing,
– make up water tank for chiller plant
– irrigation
• Rain water harvesting

74
• Fly Ash Brick
• Aerated Autoclaved Cement (AAC) Block
• Portland Puzzolona Cement (PPC)
• Terrazzo tile flooring with salvaged stone
• Grass Paver Blocks Pavements
• Local Stone with Marble Strips
• Calcium Silicate Tiles
• Bamboo Jute Composite for Frames &
Doors
• Low (VOC)Volatile Organic Compound
Paints
• Natural stone for flooring and cladding
Use of Eco friendly Materials

SOLAR POWER GENERATION DETAILS

Conclusions
• Glass building trend needs to be reviewed in the light of
Indian climate and extra cost born to reduce the heating &
glare effect of glass facades besides actual increased cost of
construction.
• Use of solar PV on vertical surfaces to be explored to reduce
the heat island effect due to glass facades.
• Net zero buildings to be given priority to reduce emission of
green house gasses and pressure on non-renewable sources
of energy. The annual reduction of 1% per annum to be
considered carefully while designing.
• Use of green materials to be mandated to conserve natural
resources and saving the environment.
• Water conservation, Energy conservation and Rain water
harvesting to be mandatory to reduce the demand of water
and energy.

LANDSCAPE DEVELOPMENT
• 55% Area will be developed as Landscape area.
• 79 existing trees on the project site
• Retained 45 nos. trees and 11 trees transplanted
• Grass Pavers for Pedestrian circulation to increase the
soft area
77
THANK YOU

Green bldgs 19 12 16

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