tatva - :: gbc :: · pdf file• project manager- ar. nishant gupta, ... interior designer-...

9/17/2014

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PRESENTATION HEADLINES • About Tatva

• Salient features of “Tatva”

• Germination of an idea of creating a home

• How did the concept of green home come into place

• Contextual relation of a green home to the city and Indian residential sector

• Initial step- Devising an architectural design

• Level Two- Putting in the structural intelligence

• Level Three- Roping in the services

• Level Four- Developing the landscape

• Level Five- Empowering through renewals

• IGBC points tally for Tatva

• Future envision

ABOUT “TATVA”

• Project type- Residential (Individual home category)

• Project location- Indore, Madhya Pradesh

• Project site area & built-up area- 3714 Sq M & 807 Sq M (building footprint- 540 sq M)

• Project’s rating- IGBC Green Homes Platinum

• Project Mr. Azad Jain/ owner- Mr. and Mrs. Azad Jain

• Project Team-

• Designer, Structural and project management- Er. Azad Jain, Azad Jain Associates

• Green building consultant and energy analyst- Ar. Umang Agrawal, Grass

Consultancy

• Project manager- Ar. Nishant Gupta, Azad Jain Associates

• Landscape consultant- Mr. Shashank Shirsagar, Devila Landscape

• Interior designer- Mr. Vikas Thakkar

• Environment adviser & green design assistance- Ar. Umang Agrawal, Grass

Consultancy

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SALIENT FEATURES OF “TATVA”

• Design for Thermal comfort-

• 100% use of AAC blocks in walls,

• complete roof top covered with XPS insulation topped with high SRI paint,

• 100% of glazing area DGU with tactical shading on east and west direction


• Design for Water efficiency-

• Installation of water saving fixtures in the bungalow unit,

• Installation of push-operation water saving fixtures in servant’s quarters,

• Installation of EMZ technology based in-situ waste water treatment plant,

• 100% rainwater capture, storage, reuse and ground water recharge,

• Storm water drain at site boundary periphery, bio-swales along driveway,

• Utilization of treated waste water for landscape irrigation and car wash


• Design for Enhanced ventilation-

• Devise of window openings, size and direction WRT Indore’s wind rose,

• Design of complete house window openings for enhanced ventilation,

• 100% area designed for cross-ventilation


• Design for Energy efficiency-

• 100% internal artificial lighting based on LED,

• 100% external lighting also based on LED,

• Complete external lighting integrated with daylight sensor,

• Use of 5 star rated electronic appliances,

• Use of 5 star rated ceiling fans and energy efficient exhaust fans

• 2 KW capacity roof mounted solar PV, 200 L capacity solar hot water system


• Design for efficient landscape-

• Complete species of trees planted at the site is native,

• Minimal % of turf area, maximum % of tree/plant/shrubs area,

• All landscape area distributed into zones according to irrigation type,

• Complete plantation beds irrigated through drip irrigation, turf area irrigated

through pop-up sprinklers,

• Treated water collection tank integrated with irrigation water supply line for

reuse of water


• Design for material conservation and resource optimization-

• Over 75% of the total flooring locally sourced with recycled content,

• 100% of all internal paints are LOW VOC paints,

• All external wall paints are high SRI paints,

• Complete false ceiling done in gypsum boards with recycled content,

• More than 75% of stone flooring locally sourced

• All flush doors modeled from scrap wood, 100% of plywood used for furniture

FSC certified

• All windows locally made UPVC windows

• Recycled content reinforcement used at site

• Flyash content RMC for structural work, use of AAC blocks for wall

construction

• Use of scraped iron grills for remodeling of window grills and scraped tiles

from old house for floor finish at new house

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• The concept of Tatva- the

residence, was incepted with an

idea of creating an identity

through architectural expression

of ethos of Mr. Azad Jain and

Mrs. Ashaa Jain.

• An ethos of creation of a dwelling

that is innovative, modern,

effective and inspirational in

today’s world.

• An architectural solution that is

suitably apt for today and

tomorrow which is sustainable

and resilient.

GERMINATION OF AN IDEA OF A HOME

Therefore as a project Mr. Azad Jain and a field expert, the idea of

innovation, suitability and longevity was central to the design of the

house

Innovation, suitability

, longevity

• In early 2012, a green building

conference was hosted at Indore

• As one of the known experts in

building sector, the Mr. Azad Jain

was an invitee to the conference

where green building related

details were thoroughly

discussed and explained.

• It appeared to the Mr. Azad Jain

that a building that is green can

be innovative, aptly suitable to

the modern building context and

can also result in longevity.

HOW DID THE IDEA OF A GREEN HOME COME

INTO PLACE

Thus green became the paramount prerequisite and driving factor of

the design concept for the new home of Mr. and Mrs. Jain. This was

the time when green building consultant was introduced to the project

Innovation, suitability

, longevity

CONTEXTUAL RELATION OF THE PROJECT TO

THE CITY AND INDIAN RESIDENTIAL SECTOR • The bungalow is located in the

commercial capital of Madhya Pradesh state, the city of Indore

• A rapidly emerging city; Indore is predominantly a city where individual housing is more popular among the masses

• Indore is popularly known as mini Bombay (present day’s Mumbai); what happens in the city, propagates to the farthest corners of central India

• Since the dawn of new millennia (year 2000), the property rates and housing demand has gone up three folds in the city. Thus leaving a huge demand for residential developments. The same is reflected in the countrywide analysis-

So was the thesis of the project design team; to develop a high

standard sustainable building design to act as prodigy for the city

of Indore and places habitual of following Indore.

Lets see the Indian context of housing demand …

INDIAN RESIDENTIAL SECTOR- ANALYSIS OF

HOUSING DEMAND • The urban population is growing at a rate

of 2.7% annually.

• BUT, housing supply is shortage of

population growth by 40%.

• India’s urban population would grow to

about 473 million in 2021 and 820 million

by 2051, as against only 285 million in

2001.

• This further highlights the kind of demand

that is expected in the residential and

commercial sectors in India.

• Conclusion: Housing and

demand will rise steadily in

cities and thus a demand for

more and more energy

HOUSING SUPPLY URBAN POPULATION

SHORTAGE OF SUPPLY

INITIAL STEP- DEVISING AN ARCHITECTURAL

DESIGN

Because of the orientation constrains, many openings went into western zone

and therefore the design team worked out an option to use wind current and

ambient cooling through trees, water body and western courtyard

Resultant- control of western exposure, control of wind current, and

logical use of wind flow for ambient cooling topped with

evapotranspiration

Design to achieve two goals

To provide for effective ventilation of complete house and

To provide for complete daylight spaces in all zones

Study of sunpath for location of internal spaces and tactical shading

Study of windflow pattern of Indore city to design for cross-ventilation

DESIGN FOR CROSS VENTILATION- ANALYSIS

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DESIGN FOR CROSS VENTILATION DESIGNING WINDOWS- ADVANCED BLINDS

DESIGNING WINDOWS- WINDOW SHADING DESIGNING WINDOWS- WINDOW SHADING

DESIGNING WINDOWS- WINDOW OPENINGS DESIGNING SHADES- WESTERN COURTYARD

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DESIGNING SHADES- WESTERN COURTYARD LEVEL TWO- PUTTING IN THE STRUCTURAL

INTELLIGENCE

Because of the expertise of the structural designer, the total volume of

concreting and thus use of reinforcement was reduced considerably.

Also building’s dead weight was reduced and the use of RMC also added to

use of recycled content of flyash

Resultant- lower use of RCC, lower cost of construction, same structural

strength

Re

qu

ire

me

nt Structural

concept for minimizing use of RCC by intelligent design through

Via

use o

f m

ate

rial Lightweight

AAC blocks for building construction thereby reducing the building deadload by 12%

Via

desig

n o

f str

uctu

re

Innovative design of bungalow’s structural layout to eliminate beam depth- design as beamless structure

LEVEL THREE- ROPING IN THE SERVICES

Engineered approach to design for lighting layout-

Reverse calculations to reduce design LPD to less than half of benchmark values,

100% use of LED lights,

Daylight sensor integration with exterior lighting,

Exterior lighting too 100% LED

Engineered approach to water supply and sanitation design-

Selection of best in performance water saving fixtures

Minimal use of fresh water through water conservation and reuse via

In-situ sewage water treatment plant

Rainwater capture and storage and reuse in rainy season

Use of biotabs for urinals to eradicate water demand

In-depth research for selection of electrical

appliances-

Selection of 5 star rated appliances

Design of the ventilation scheme for mixed-mode

ventilation

Passive cooling techniques of water cascade, water

ponding, courtyard planning, and dense plantation

RAIN WATER HARVESTING SYSTEM

IN-SITU SEWAGE TREATMENT PLANT USE OF BIO-TABS

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LEVEL FOUR- DEVELOPING THE LANDSCAPE

Design to achieve two goals

To devise a native, drought tolerant and sustaining landscape

To reduce irrigation demand of the landscape to minimum

Development of rear landscape area into a vegetable garden planted with fruit trees and vegetables native to region

Development of front landscape area with only native trees of 30 varieties, maximization of shrubs and plants area, minimization of turf area, use of

open grid pavement in the lawn area

High efficiency in irrigation via use of pop-up sprinklers and drip irrigation beds

LANDSCAPE PLANTATION

LEVEL FIVE- EMPOWERING THROUGH RENEWABLES

Design to achieve two goals-

Renewables for lighting

Renewables for hot water supply

Installation of 2KW solar

PV for electrical supply,

Complete emergency lighting supply through solar PV

Supply of 1 light/room through solar PV

Installation of 200L solar hot water system for hot water supply for entire family together with servants’ quarters,

Complete elimination of electric water heaters

IGBC POINTS TALLY FOR “TATVA”

Project Name Pragati Park Residence 3682.96

Project Location Indore 788.85

Project Type residential GRASS

Project Climatic location Composite 11/12/2012 yes Maybe No

S. No. Total points Criteria Allotted Points Category 74 0 1

9 Current Total 8 0 1

i SSP MR 1 Local building regulations None

ii SSP Mr 2 Soil erosion control None

1 SSP C1Basic Household amenities

1 1 1

1 1

1 1

2 2

4 SSP C7Design for differently abled

1 1 1

5 SSP C8Basic Facility for construction

workforce1 1 1

2 2

2 SSP C2Natural topography or

Vegetation2

3 SSP C4

Heat Island Effect- Roof4

Site Selection and PlanningMandatory

Mandatory

Green Resilient

Architecture and

Sustainability

Solutions

IGBC Green Homes V2 ChecklistAchieving

Platinum

Points table

Umang Agrawal



iii WE Mr1

Rainwater harvesting- Roof

and Non-roof None

iv WE Mr2Water efficient plumbing

fixturesNone

1 1

1 1

7 WE C2Management of Irrigation

systems1 1 1

2 2

2 2

2 2

2 2

8 WE C3Rainwater harvesting- Roof

and Non-roof4

9 WE C4Water efficient plumbing

fixtures4

Water Efficiency

Mandatory

Mandatory

6 WE C1Landscape design

2



v EE Mr1 CFC Free equipments None

vi EE Mr2

Minimum Energy

performance None

10 EE C1

Enhanced Energy

performance 10

1-10 (starting

from 3% to

30%)

10

2 2

2 2

2 2

2 2

2 2

13 EE C4

Energy saving measures in

appliances and other

equipments

2 2 2

12 EE C3Solar water heating system

4

Energy EfficiencyMandatory

Mandatory

11 EE C2

On-site renewable energy

6

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vii MR Mr1Seperation of house-hold

wasteNone

14 MR C1

Organic waste management,

post occupancy 2 2 2

15 MR C2Handling of construction

waste materials1 1 1

1 1

1 1

1 1

1 1

1 1

1 1

2 2

2 2

18 MR C5Local Materials

2

19 MR C6 Rapidly renewable building

materials and certified wood4

16 MR C3Reuse of salvaged materials

2

17 MR C4Materials with recycled

content2

Materials and resources

Mandatory

IGBC POINTS TALLY FOR “TATVA” 15 Current Total 15 0 0

viii EQ Mr1Tobacco smoke control

None

ix EQ Mr2Minimum Daylighting

None

x EQ Mr3Fresh air ventilation

None

2 2

2 2

21 EQ C2

Enhanced Fresh air

ventilation 2 2 2

22 EQ C3Exhaust system

2 2 2

1 1

1 1

24 EQ C5Building flush-out

1 1 1

2 2

2 2


1 1

1 1

1 1

1 1

27 ID C2 IGBC Accredited Professional 1 1 1

Innovation & Design process

26 ID C1

Innovation & design process

4

23 EQ C4Low VOC Materials- paints &

Adhesives 2

25 EQ C6Cross ventilation

4

Indoor Environment Quality

Mandatory

Mandatory

Mandatory

20 EQ C1Enhanced Daylighting

4

THANK YOU!

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