WHAT IS SUSTAINABLE BUILDING ?
SUSTAINABILITY is defined as meeting the needs of present
generations without compromising the ability of future
generations to meet their needs.
Sustainable building or Green building refers to the
structure which are both :
• environmentally responsible and
• resource-efficient throughout a building’s life cycle.
Sustainable building design involves balance between
• Home building and
• Sustainable environment
OBJECTIVES OF GREEN BUILDING:
Common objectives of green building is to :
Low impact :minimize impact on natural environment
Energy efficient: reduced energy usage and water usage
Healthy: protect occupant’s health and increase productivity
Minimize waste: designed and constructed in a manner that minimizes
waste, pollution and environmental degradation.
GOALS OF SUSTAINABLE BUILDINGS
There are a number of motives for building green, including environmental,
economic, and social benefits.
It often emphasizes taking advantage of Renewable resources:
• Using sunlight as passive solar , active solar and photovoltaic equipments.
• Using plants and tress through green roofs, rain gardens etc.
• Reduction of rain-water run-off.
PRINCIPLES OF SUSTAINABLE BUILDING:
STRUCTURAL EFFECIENCY: to minimize the environment
impact associated with all life-cycles.
ENERGY EFFECIENCY :to reduce the operating energy use.
WATER EFFECIENCY: reducing water consumption and
protecting water quality.
MATERIAL EFFECIENCY: materials should be
renewable,recycleable and environment-friendly.
WHAT IS A SUSTAINABLE MATERIAL ?
A sustainable material is any material
that can be put to effective use in the
present without compromising its
availability for use by latter
These are mainly renewable materials or
the materials which can be recycled and
SOURCES OF SUSTAINABLE MATERIALS:
TWO MAIN SOURCES
REUSE FROM WASTE
TYPES OF SUSTAINABLE MATERIALS:
MATERIALS FROM RENEWABLE
Materials significantly of plant
Can be obtained from renewable
sources like solar energy, wind
energy, bio-gas etc.
E.g.: wood, natural fibers, polymers
REUSE FROM WASTE
PRODUCTS AS RAW
They are typically the products of
Materials that can be dismantled and
E.g.: old plumbings, doors, crushed
glass, wood chips etc.
Obtained by adding wool and
natural polymer found in
seaweed , to the clay of the
37 % more strength than the
Resistant of cold and wet
They are dry hard and don’t
need to be fired like other
Concrete is a friend of
environment on all of its life
stages: From raw material
production to demolition.
Crushed glass, wooden chips or
slag can be added to make it
reduces CO2 emission of the
They spend a large portion of the day absorbing energy from the sun.
Not fixed on the top of the existing roofing like other solar units.
Instead they are fully integrated into the building.
Protects from weather
As well as generates energy for the inhabitants.
Made from recycled newspapers and cardboard
Superior alternative to chemical foams
Insect resistant and fire-retardant because of borax, boric acid and
calcium carbonate( all natural materials )
Can be blown into cavity walls thus filling every cracks and creating an
almost draft-free space.
TRIPLE GLAZED WINDOWS
Three layered glass windows
Fully insulated window
frames-Do a better job of
stopping heat from
leaving the building
Krypton-is used as an insulator between the layers
Low emissivity coatings to glass-prevents heat from escaping
MERITS AND DEMERITS OF
Improved indoor air quality
Energy and water efficient
Initial cost is high
Availability of materials
Need more time for
Need more skilled labors