SEQUENCE

• Introduction

• What is green Building?

• Objective of Green Building

• Elements of Green Building

• Green Building Certifications

• LEED and its grading system

• Pakistan Green Building Council

• Benefits of Green Buildings

• Typical Green Buildings

• Conclusion

GREEN BUILDING

• The ‘GREEN BUILDING’ concept is gaining

importance in various countries. It refers to a

structure and using process that is

environmentally responsible and resource

efficient throughout a building’s life cycle.

• These are buildings that ensure efficient use of

resources and minimized waste at every stage

during the construction and operation of the

building, resulting in low costs.

GREEN BUILDING

• Green building also known as sustainable or high

performance building increases the efficiency

with which buildings and their sites use and

harvest energy, water, and materials, with

minimum impact on environment.

• Hence a Green Building is the one which uses

less water, optimizes energy efficiency,

conserves natural resources, generates less

waste and provides healthier space to occupants

as compared to conventional buildings.

GREEN BUILDING CAN REDUCE

• Green building (also known as green construction or

sustainable building) refers to a structure and using

process that is environmentally responsible and

resource-efficient throughout a building's life-cycle: from

Siting to Design, Construction, Operation, Maintenance,

Renovation, and Demolition.

• Green building brings together a vast array of practices

and techniques to reduce and ultimately eliminate the

impacts of buildings on the environment and human

health.

• It emphasizes on taking advantage of renewable

resources, e.g., using sunlight through passive

solar, active solar, and photovoltic techniques and using

plants and trees through green roofs, rain gardens, and

for reduction of rainwater runoff.

WHAT IS GREEN BUILDING?

• Maximize use of materials from sustainable

sources.

• Reduce overall energy use and maximize potential

for renewable energy supply and use.

• Minimize waste and maximize reuse and recycling

of materials both during construction and operation.

• Conserve water resources, enhance water quality,

incorporate water sensitive design and minimize

vulnerability to flooding.

• Minimize polluting emissions to water, air and soil

and minimize noise and light pollution.

OBJECTIVES

ELEMENTS OF GREEN BUILDING

• Resource/material efficiency

• Energy efficiency

• Water efficiency

• Waste management

• Indoor air quality

• Structure design efficiency

• Recycled Content. Products with identifiable recycled

content, including post-industrial/by products content

with a preference for post consumer content.

RESOURCE/MATERIALS EFFICIENCY

• Resource efficient manufacturing process. Products

manufactured with resource-efficient processes including

reducing energy consumption, minimizing waste

(recycled, recyclable and or source reduced product

packaging) and reducing greenhouse gases.

RESOURCE/MATERIALS EFFICIENCY

• Locally available. Building materials, components, and

systems found locally or regionally saving energy and

resources in transportation to the project site.

RESOURCE/MATERIALS EFFICIENCY

• Durable. Materials that are longer lasting or are

comparable to conventional products with long life

expectancies.

RESOURCE/MATERIALS EFFICIENCY

• Depending upon project-specific goals, an

assessment of green materials may involve an

evaluation of one or more of the criteria listed

below:-

– Resource efficiency

– Indoor air quality

– Energy efficiency

– Water conservation

– Affordability

RESOURCE/MATERIALS EFFICIENCY

ENERGY EFFICIENCY

ENERGY EFFICIENCY• Better Design. Energy use can be reduced through

“No Costs” design measures that keep buildings

naturally cool in the summer and warm in the winter.

Warmer summers increase the demand for air

conditioning, which increases energy consumption,

but careful building design can prevent or reduce

the need for air conditioning through insulation and

natural ventilation.

ENERGY EFFICIENCY• Renewable Energy. Reduction in the use of fossil

fuels can also be aided by incorporating renewable

energy sources like wind, solar, hydropower. By

combining energy efficiency, passive solar design

and sustainable energy supply it is now possible to

design new developments with net zero carbon

emissions.

ENERGY EFFICIENCY• Solar Energy. Maximizing solar gain in winter with

large glazed areas, and a roof overhang to provide

shade in summer. Use solar water heater to cut

heating costs.

ENERGY EFFICIENCY• Energy Efficient Appliances. Can perform

more with the same quantum of energy.

ENERGY EFFICIENCY• Super Insulation. Good insulation of walls, roofs

and floors from renewable materials, double glazed

widows to effectively control flux of heat energy.

ENERGY EFFICIENCY• Natural/Artificial Lighting. Maximizing use of

natural day lighting , skylights and high energy

efficient luminaries like LEDs.

ENERGY EFFICIENCY• Building Energy Management Systems (BEMS)

to control and optimize lighting, heating and

ventilation.

WATER EFFICIENCY

• Reducing water consumption and protecting water

quality are key objectives in sustainable building. To the

maximum extent, facilities should increase their

dependence on water that is collected, used, purified,

and reused on-site. The protection and conservation of

water throughout the life of a building may be

accomplished by designing for dual plumbing that

recycles water in toilet flushing.

WATER EFFICIENCY

• Waste-water may be minimized by utilizing water

conserving fixtures such as ultra-low flush toilets, aerator

and low-flow shower heads. Point of use water

treatment and heating improves both water quality and

energy efficiency while reducing the amount of water in

circulation.

WATER EFFICIENCY

• Reducing potable water demand through rainwater

harvesting.

WATER EFFICIENCY

• Replicating natural drainage patterns, including the

recharge of groundwater so that base flows are

maintained.

WATER EFFICIENCY

• Use of permeable / porous pavement to enhance

percolation.

WASTE MANAGEMENT

• Minimise waste and maximise reuse and recycling both

during construction and after occupation.

• Demolition waste is produced in huge quantities,

maximise its reuse in building & minimize landfill volume.

WASTE MANAGEMENT

• 70%-90% of collected household waste is recyclable or

compostable, however over 80% of this waste goes to

landfill.

WASTE MANAGEMENT

• Providing on-site solutions such as compost bins to

reduce matter going to landfills.

• To reduce the impact on wells or water treatment plants,

several options exist. "Greywater", wastewater from

sources such as dishwashing or washing machines, can

be used for subsurface irrigation, or if treated, for non-

potable purposes, e.g., to flush toilets and wash cars.

IN DOOR AIR QUALITY

• Indoor Air Quality seeks to reduce volatile organic

compounds (VOCs), and other air impurities. Buildings

rely on a properly designed ventilation system

(passively/naturally- or mechanically-powered) to provide

adequate ventilation of cleaner air from outdoors or re-

circulated filtered air.

IN DOOR AIR QUALITY

• Minimize polluting emissions to water, air and soil.

• Minimized Pollution of all kinds during construction

phase.

• Minimize noise pollution within the building and from

external sources.

• Light pollution be minimized in and around the building.

IN DOOR AIR QUALITY

• Materials. Materials be specified to ensure low

environmental impact and to maintain good internal air

quality.

IN DOOR AIR QUALITY

• Moisture resistant. Products and systems that resist

moisture or inhibit the growth of biological contaminants

in buildings.

IN DOOR AIR QUALITY

• Systems or equipment. Products that promote healthy

IAQ by identifying indoor air pollutants or enhancing the

air quality.

STRUCTURE DESIGN EFFICIENCY

• The foundation of any construction project is rooted in

the Concept and Design stages. The concept stage is

one of the major steps in a project life cycle, as it has the

largest impact on cost and performance.

STRUCTURE DESIGN EFFICIENCY

• In designing environmentally optimal buildings, the

objective is to minimize the total environmental

impact associated with ALL LIFE-CYCLE stages of

the building project. However, building as a process is

not as streamlined as an industrial process, and varies

from one building to the other, never repeating itself

identically. In addition, buildings are much more complex

products, composed of a multitude of materials and

components each constituting various design variables

to be decided at the design stage.

STRUCTURE DESIGN EFFICIENCY

• A variation of every design variable may affect the

environment during all the building's relevant life-cycle

stages.

• There are design steps which may not cost but

appreciably reduce construction and maintenance costs.

STRUCTURE DESIGN EFFICIENCY

• No matter how sustainable a building may have been in

its design and construction, it can only remain so if it is

operated responsibly and maintained properly.

• Ensuring operations and maintenance(O&M) personnel

are part of the project's planning and development

process will help retain the same green criteria designed

at the onset of the project building's life. The addition of

new green technologies also falls on the O&M staff.

GREEN BUILDING CERTIFICATIONS

GREEN BUILDING CERTIFICATIONS

• Why Certification. Some of the benefits of using

independent environmental assessment methods to rate

new buildings and developments are:-

– Assessment as per International Standards.

– Demonstrating sustainability credentials to planning

authorities.

– Demonstrating environmental credentials to investors

to help minimize investment risk and increase the

appeal to investors.

– Demonstrating superior environmental design to

customers including reduced running costs, health,

comfort and flexibility of internal environments, and

access to local amenities.

GREEN BUILDING CERTIFICATIONS

• Common certifications:-

– Building Research Establishment’s Environmental

Assessment Method (BREEAM) – UK based, establish

in 1990.

– Ecohomes – BREEM based residential development.

– Leadership in Energy and Environmental Design

(LEED) – established in 1993, most widely used.

– Energy Star – more emphasis on materials.

– Pakistan Green Building Council – no certification as yet

GREEN BUILDING CERTIFICATIONS

• LEED – US based

• LEED or Leadership in

Energy & Environmental

Design, is a green

building certification

program that recognizes

best-in-class building

strategies and practices.

GREEN BUILDING CERTIFICATIONS

• To receive LEED

certification, building

projects satisfy

prerequisites criteria

and earn points to

achieve different levels

of certification.

GREEN BUILDING CERTIFICATIONS

There are five rating systems that address multiple project types:-

Four levels of certification:-

GREEN BUILDING CERTIFICATIONS

• LEED Beta Version 4 is under process of

implementation.

GREEN BUILDING CERTIFICATIONS

• BREEAM and Ecohomes

are managed by the Building

Research Establishment UK

and these are both an

environmental assessment

tool and an accreditation

scheme.

GREEN BUILDING CERTIFICATIONS

• BREEAM can be applied to

offices, retail developments

and industrial buildings and

Ecohomes is the version of

BREEAM for residential

development. A BREEAM for

schools is in development.

• These assessments cover

energy, water, materials,

transport, pollution, ecology

and health and give a rating of

‘pass’, ‘good’, ‘very good’ or

‘excellent’. A checklist can be

used to predict a rating from

plans and specifications.

GREEN BUILDING CERTIFICATIONS

• Pakistan GBC was

established in December 2012

and working under umbrella of

World Green Building Council

which is a union of 98 national

Green Building Councils from

around the world, making it the

largest international

organization influencing the

green building marketplace.

GREEN BUILDING CERTIFICATIONS

The organization is in early stages and primarily

educating on green building technology in Pakistan.

• Standard for certification of Green Buildings and

Communities in Pakistan is yet to be established.

• Number of buildings certified by Pakistan GBC are

none, however Pebbles Housing in Sheikhupura is its

first ever project in hand.

BENEFITS OF GREEN BUILDING

BENEFITS OF GREEN BUILDING

• Environmental Benefits

• Social Benefits

• Economic Benefits

ENVIORNMENTAL BENEFITS

• Emissions reduction

• Water conservation

• Waste reduction

• Strom water management

• Temperature moderation

• Improve air and water quality

• Conserve fast depleting

natural resources

SOCIAL BENEFITS

• Enhance occupant comfort and health.

• Heighten aesthetic qualities.

• Improve overall quality of life.

ECONOMIC BENEFITS

• The most criticized aspect about constructing

environmental friendly buildings is the price.

• New and efficient modern technologies tend to

cost more money. However this initial cost in

most cases is paid back in form of low operating

and maintenance cost with in 8 – 10 years.

Optimization pointTota

l C

osts

Configurations

Operation

cost

Initial

cost

ECONOMIC BENEFITS

• Confirming the rent-ability of green building

investments, further studies of the commercial

real estate market have found that certified green

buildings achieve significantly higher rents, sale

prices and occupancy rates as well as lower

capitalization rates potentially reflecting lower

investment risk.

• Roughly the pay back period of a green building

spans 8-10 years.

ECONOMIC BENEFITS

• Reduce Operating and Maintenance costs by

energy saving.

ECONOMIC BENEFITS

• Create, expand, and shape markets for green

product and services.

• Improve occupant’s performance and

productivity.

• Optimize life-cycle economic performance.

• Decreased infrastructure strain.

• Improved property values.

COST AND PAYOFF

Conventional buildingEnergy Efficient buildingSustainable BuildingSustainable building with revenue from excess power generation

Building life (Years)

Cu

mu

lati

ve C

ost

COST AND PAYOFF

Energy, 11%

Emissions, 2%

Water, 1%

Waste, 0%

Reduced O&M, 16%

Productivity and Health, 70%

Percentage Breakdown of Green Building Financial Benefits(LEED Certified and Silver Building)

Energy

Emissions

Water

Waste

Reduced O&M

Productivity and Health

• Why people want

green buildings

TYPICAL GREEN BUILDING

PASSIVE SOLAR DESIGNTYPICAL GREEN BUILDINGRain water Harvesting

Solar Water Heater

Wind turbines for electricity

PV Cells

Passive Solar Gain

or shielding

Rain water collection in barrels for plants

Composting to reduce waste and

help garden

A native rain garden to manage

storm water with less water

High efficiency

double glazed

window

Motion detector lights to

save energy

Energy efficient

appliances

Graywaterfrom bath sinks and kitchen

Dual flush toilets to

economisewater

High energy

efficient lights, LEDs

Non toxic paints water based,

insulated walls

PASSIVE SOLAR DESIGNTYPICAL GREEN BUILDING

CO2 Monitor

SunShades

PV Cells

Shuttle Bus

Vacuum Waste disposal

LED

Landscaping

Sky Grdn

Solar Heater

TiO2 Glass

Cooling Sys

Recycle Bin

Reclaimed Water

Water less urinal

Organic Composite

Water efficient fixtures

Building Monitoring sys

Energy efficient lights

Double glazingIndoor air quality audit

HOW TO MAKE GREEN HOMES

Hi qualityInsulation

Roof & wallSealing

Low flow dual flush toilet

Alternate energy source PV panels

Light colored roofing

Low E double glazed windows

Light colored exterior walls

Sloar water heater

Rain water collectorNative plantsBuilding energy

monitoring system (BEMS)

Energy star appliances

Low/ Zero VOC paints and flooring

Efficient Lights

Tree shades

Recycle material flooring

Tree shades on East and West

HOW TO MAKE GREEN HOMESTYPICAL GREEN BUILDING

SOLAR GAIN

BETTER INSULATION

• Use double and triple

glazed windows

• Insulation of walls and

roofs with recycle

materials, foams and

insulation conc

SOLAR DESIGN

LOW E WINDOWS

USE OF SKY LIGHT• Use of sky light for

basement and all

spaces

• Tubular Skylight

effective for all sun

angles

CONSERVATION OF WATER

• Use of aerator to save

and economies water

use

• Use rain harvesting

for gardening,

irrigation

CONCLUSION• This research identified the exciting

developments taking place on the technology

front and analyzes their implications for green

buildings, highlighting examples of “best in

class” buildings employing green and intelligent

technologies. These buildings are dynamic

environments that respond to their occupants’

changing needs and lifestyles.

• This research provided a direction to educate

and influence end-users, building owners,

architects, and contractors that green technology

will provide a tangible and significant return on

investment along with other economic benefits

THANKS

TITANIUN DIOXIDE GLASS• Light energized, photocatalytic TiO2 is a safe,

non-toxic, anti-oxidant that produces hydroxyl

radicals (OH-) that are remarkably effective in

rapidly decomposing organic matter, including

bacteria, fungi, odors and nicotine. This

chemical process converts organic matter into

the harmless elements of water and carbon

dioxide, which are then released into the air.

Door blower test

• STRUCTURE EFFICIENCY: It is the concept of sustainable building and has largest

impact on cost and performance.

It aims to minimize the enviornmment impact associatedwith all life-cycles.

• ENERGY EFFICIENCY: The layout of the construction can be strategised so that

natural light pours for additional warmth.

Shading the roof with trees offers an eco-friendlyalternative to air conditioning.

An example of this are solar power panels,not only theyprovide lightening but they are also a useful energysource.

• WATER EFFICIENCY:

To minimize water consumption one should aim to

use the water which has been collected, used, purified

and reused.

• MATERIAL EFFICIENCY:

Materials should be use that can be recycled and can

generate surplus amount of energy.

• WASTE AND REDUCTION:

It is probable to reuse resources.

What may be waste to us may have another benefit to

something else.

INDIAN GREEN BUILDING

COUNCIL

• The Indian Green Building Council (IGBC) was

formed in the year 2001 by Confederation of

Indian Industry (CII).

• The aim of the council is to bring green building

movement in India and facilitate India to become

one of the global leaders in green buildings by

2015.

•

IGBC RATING SYSTEM

• IGBC has developed green building rating

programmes to cover commercial, residential, factory

buildings, etc.

• Each rating system divided into different levels of

certification are as follows:

‘Certified’ to recognise best practices.

‘Silver’ to recognise outstanding performance.

‘Gold’ to recognise national excellence.

‘Platinum’ to recognise global leadership.

GREEN BUILDINGS PROJECT IN INDIA

• Suzlon Energy Limited-Pune

• Biodiversity Conservation India-Bangalore

• Olympia Technology Park-Chennai

• ITC Green Centre-Gurgaon

• The Druk White Lotus School-Ladakh

• Doon School-Dehradun

• Raintree Hotels-Chennai

• Nokia-Gurgaon

• Rajiv Gandhi International Airport-Hyderabad

• Hiranandini-BG House, Powai

• ABN Amro Bank, Chennai

• Palais Royale at Worli, Mumbai

• Punjab Forest Complex,Mohali

• SUZLON ENERGYLIMITED,PUNE:

Several accoladescontinue to shower uponSuzlon’s globalheadquarter in Pune “OneEarth”.

LEED certified it as‘PLATINUM’ and it isbuilt on an area of10.13acres.

One Earth can be countedas among the largestgreen building projects inIndia.

• RAJIV GANDHIINTERNATIONALAIRPORT-HYDERABAD:

India’s first Greenfieldairport is undeniablyamong the top 10 greenbuildings in India.

First airport in asia to becertified with ‘SILVER’rating.

This green buildingensures optimal use ofnatural light and minimalwastage of electricity orenergy consumption.

• NOKIA-GURGAON:

‘GOLD’ rated building

by LEED.

Its smart lighting, heat

recovery wheel and high

efficiency chillers

makes this office stand

out from the rest.

SOME IMAGES OF GREEN

BUILDINGS

DIFFERENT FROM OTHER BUILDINGS

• The design,maintaince and construction of buildings

have tremendous effect on our enviornment and

natural resources.

• Green Building is different from the other buildings

because it use a minimum amount of nonrenewable

energy, produce minimal pollution, increases the

comfort, health and safety of the people who work in

them.

• It also minimize the waste in construction by

recovering materials and reusing or recycling them.

INCREASING GREEN BUILDINGS IN

INDIA

• Today more than 1053 green buildings (as on April

2011) are being constructed all over India, of which

147 green buildings are certified and fully functional.

REFRENCES

• http://www.igbc.in/site/igbc/tests.jsp?event=22869

• http://www.greenbuildingsindia.com/Green-Buildings.html

• http://www.biperusa.org/6-objectives-of-green-building.html

• http://www.brighthub.com/environment/green-living/articles/51601.aspx

• http://ecenter.colorado.edu/greening-cu/green-building

• http://www.chillibreeze.com/articles/top-10-green-buildings-in-India-1011.asp

• http://gbindia.wordpress.com/igbc-rating-system-2/