WHAT IS SUSTAINABLE HOUSING ?
Sustainable houses are those that are designed, built and managed
• Healthy, durable, safe and secure,
• Affordable for the whole spectrum of incomes,
• Using ecological low-energy and affordable building materials and
• Connected to decent, safe and affordable energy, water, sanitation
and recycling facilities,
• Using energy and water most efficiently and water recycling
• Not polluting the environment and protected from external pollutions,
• Well connected to jobs, shops, health- and child-care, education and
CONCEPT BEHIND SUSTAINABLE HOUSING
These are buildings that ensure that waste is minimized at
every stage during the construction and operation of the
building, resulting in low costs.
The techniques associated with the ‘Sustainable Housing'
include measures to prevent erosion of soil, rainwater
harvesting, preparation of landscapes to reduce heat,
reduction in usage of potable water, recycling of waste water
and use of world class energy efficient practices.
WHY FOCUS ON HOUSING ?
Accounts for a major portion of total energy use (20%)
Heating (38%) is largest consumer in home
Easiest sector to target
A great deal (perhaps 50%) of energy is wasted
Most homes are not adequately built for energy
efficiency & older homes are typically not efficient
High energy prices can create financial burdens for
homeowners and renters
-Require less cleaning, painting &
- More easily negotiated & higher
It is true that almost all forms of
sustainable housing require a
substantial investment at the
beginning. Solar panels, for example,
are still quite
On the other hand, it has to be said
that the eventual results can also be
quite good. The initial investment into
solar panels, for example, will bring the
electricity bills down.
Green buildings are built from green, rapidly
renewable, non-toxic, reusable and
recyclable materials as lumber, bamboo,
straw, recycled metal/stone, sheep wool,
compressed earth block, concrete, cork etc
This is the first office building in which the
earth that came out from the basement
excavation has been used as compressed
stabilized earth block in the masonry of the
building, and in making its landscape garden
For instance wood is used instead of
aluminum for doors and windows and the
use of burnt brick is minimized.
No imported stones are used. This gives
about 30 percent reduction in CO2 emissions
compared to the kind of buildings that are
generally prevalent today.
- Water efficiency
Water consumption is another objective in sustainable building. Water can be wasted by
drip irrigation, leaking (toilet leaking can waste up to 90 gallons per day), pool showers.
Recycling rainwater and using it for toilet flushing can save waste-water. Water saving
shower heads, ultra-low flush toilets and other conserving fixtures can minimize waste-
Green buildings need less maintenance. For example most green buildings don’t require
exterior painting so often. Also as far as natural sources were used during its
construction, they are not destroyed so quickly.
- To decrease dependence on fossil fuels.
We are now experiencing
climate change as up until
now, our human society
hasn't stopped to consider
our effect upon the
Environment.It is deal with
anaylsis of climatic zone
and bioclimatic needs,
comfort level in bio-
climatic chart, use of
passive solar architecture
like roof , wall , opening,
USE OF ECO-FRIENDLY
Materials with low
,Materials that contain
recycled, Local or rapidly
renewable material, Non-
toxic/Low Toxic Materials
Implications, Reduce the
release of GHGs,
Safeguard health of
impact on the external
Environmental like fly ash
brick, water based paint,
organic flooring and tiles.
SOME SUSTAINABLE BUILDING MATERIALS
- COMPRESSED EARTH BLOCK
- CORK (IN FLOORING)
- NATURAL RUBBER
- NATURAL FIBRE (COIR, JUTE,)
- Glass & skylights
- Wall-to-wall floor coverings
- Multi-purpose, small scale furnishings
- Roof overhangs
- Porch & deck
Smooth transition from exterior to interior
- Glass doors
- Lots of windows
is defined as design
that meets the
needs of the present
ability of future
generations to meet
their own needs.
FACTORS FOR SUSTAINABLE DESIGN
Location & linkages
Materials & resources
Energy & atmosphere
Innovation & design
Holistic approach includes:
- Solar Orientation
- Day lighting
- Ventilation Systems
- Environmentally friendly
components such as
- Energy efficiency
- Bamboo floor
Components of a passive
Direct gain—sunshine enters
south-facing windows; absorbed
within living space; stored in
mass within home.
Indirect gain—energy from sun
collected at one place, such as a
Many minor modifications can enhance energy
- Compact Fluorescent Lights
- Efficient ceiling fan
EARTH – SHELTERED HOUSING
Uses the earth as a barrier & as a moderator of
- Uses 30% less surface area to enclose the
same amount of volume as a box type
structure—less area for heat to escape or
outside air to penetrate
- Spherical shape provides for natural and
efficient interior air circulation
DISADVANTAGES OF SUSTAINABLE HOUSING
• Air-cooling features
Particular cooling components that control precisely the indoor
te perature i gree uildi gs do ’t e ist.
The only thing that influences it is natural ventilation, which cannot be
• Lo atio
To amend sun exposure green building may need a correct structural
orientation. It influences how natural light enters the building, how to
shade some part of it.
As far as the building will contain recycled resources the location of
the uildi g is affe ted the la d’s hu idit , the ir u sta e of the
• Availa ilit of aterials
In urban areas materials can be found easily than in rural areas.
Sustainable buildings require special materials. A lot of eco-friendly
materials are not available everywhere, so sometimes these materials
are hard to find and transportation fees may be high.
• Ti e
To build a sustainable building, in some cases takes more time than an
ordinary one. Sometimes it takes too much time to find the needed
material . The client can delay the construction.
Many believe that the cost of green building is cost-prohibitive. One
need to invest a lot of money initially, however later with energy
saving possibilities, electricity bills might be reduced.
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