It is all about sustainable buildings or green buildings and a brief study of some sustainable building materials we can use for making a building sustainable and green.

1. SUSTAINABLE BUILDING
MATERIALS

2. 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.

3. 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

4. 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.

5. 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:
for example:
• 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.

6. 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.

7. 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
generations.
 These are mainly renewable materials or
the materials which can be recycled and
reused.

8. SOURCES OF SUSTAINABLE MATERIALS:
TWO MAIN SOURCES
RENEWABLE
SOURCES
REUSE FROM WASTE

9. TYPES OF SUSTAINABLE MATERIALS:
MATERIALS FROM RENEWABLE
SOURCES
 Materials significantly of plant
origin.
 Can be obtained from renewable
sources like solar energy, wind
energy, bio-gas etc.
 E.g.: wood, natural fibers, polymers
etc.
REUSE FROM WASTE
PRODUCTS AS RAW
MATERIALS
 They are typically the products of
recycled matter.
 Materials that can be dismantled and
reused again.
 E.g.: old plumbings, doors, crushed
glass, wood chips etc.

10. WOOL BRICKS
 Obtained by adding wool and
natural polymer found in
seaweed , to the clay of the
brick.
 37 % more strength than the
burnt bricks
 Resistant of cold and wet
climate
 They are dry hard and don’t
need to be fired like other
bricks.

11. SUSTAINABLE CONCRETE
 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
sustainable concrete.
 reduces CO2 emission of the
building.

12. SOLAR TILES
 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.

13.  Instead they are fully integrated into the building.
 Protects from weather
 As well as generates energy for the inhabitants.

14. PAPER INSULATION
 Made from recycled newspapers and cardboard
 Superior alternative to chemical foams

15.  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.

16. TRIPLE GLAZED WINDOWS
 Three layered glass windows
 Fully insulated window
frames-Do a better job of
stopping heat from
leaving the building

17. Krypton-is used as an insulator between the layers
Low emissivity coatings to glass-prevents heat from escaping

18. MERITS AND DEMERITS OF
SUSTAINABLE BUILDINGS
MERITS
 Efficient technologies
 Easier maintenance
 Improved indoor air quality
 Energy and water efficient
 Improved health
 Water conservation
DEMERITS
 Initial cost is high
 Availability of materials
 Need more time for
construction
 Need more skilled labors