2. GREEN OR SUSTAINABLE BUILDING
A more comfortable building with much lesser impact on environment.
More economical to run, healthier to live & adaptable to changing needs.
“A green building is one which uses less water, optimizes energy efficiency, conserves
natural resources, generates less waste and provides healthier spaces for occupants, as
compared to a conventional building.”
SOME GREEN BUILDINGS IN INDIA
Suzlon One Earth, Pune Infosys, Mysore I-Gate Knowledge
Centre, Noida
FEATURES OF A GREEN BUILDINGS
Protecting occupant health and improving employee productivity.
Efficiently using energy, water, and other resources Reducing waste, pollution
and environmental degradation
3. Goals of green building
Green Buildings brings together a vast array of practices, techniques and skills to reduce
and ultimately eliminate the impacts of buildings on the environment and human health.
The green building movement in the U.S. originated from the need and desire for more energy
efficient and environmentally friendly construction practices.
COMPONENTS / ELEMENTS OF GREEN BUILDING
1. Materials For Green Buildings - Materials for a green building are obtained from natural, renewable
sources that have been managed and harvested in a sustainable way.
2. Energy Systems In Green Buildings - Passive solar design will dramatically reduce the heating and
cooling costs of a building, as will high levels of insulation and energy-efficient windows.
3. Water Management In Green Buildings - Minimising water use is achieved by installing greywater and
rainwater catchment systems that recycle water for irrigation or toilet flushing.
4. Health Components Of Green Building - Using non-toxic materials and products will improve indoor
air quality, and reduce the rate of asthma, allergy and sick building syndrome.
4. objectives of green building
RESOURCE EFFICIENCY
ENERGY EFFICIENCY
INDOOR
ENVIRONMENT
QUALITY
WATER CONSERVATION
SITE AND COMMUNITY
IMPACT
Taipei 101, the tallest and
largest green building of
LEED Platinum certification
in the world since 2011.
FEATURES OF THIS BUILDING
• The green features include glazed structural façade with double pane
windows which offers heat and UV protection to the interiors.
• The high-tech insulated glazing has a special treatment that reduces
two-thirds of the external heat to save energy and provide comfort.
• The various air units positioned strategically monitor the level of carbon
di oxide in the air and when it gets too high in certain areas, the units
help to draw in air from outside of the building to lower the carbon di
oxide levels.
• The building also possesses recycled water system which meets 20–30
percent of the building's water needs.
5. SUSTAINABLE BUILDING METHODS
Many organizations are recognizing the value of sustainable and green building methods. New advances in
materials, technology and practices enable companies to use environmentally friendly processes that also lead
to better overall efficiency. Here are some sustainable building methods currently in use and are under
development.
SYNTHETIC ROOF UNDERLAYMENT
The underlayment on roofs is typically asphalt-
based, which breaks down relatively quickly.
Replacing this layer is necessary to keep the
moisture out of the building's interior. Synthetic
roof underlayment offers an alternative that weighs
less and holds up to the wear and tear of an
exterior environment. This material uses polymer
that comes from recycled scrap materials. It also
eliminates VOC’s from the underlayment.
GREEN ROOF
Another innovation for the top of commercial
properties comes from green roofs. Grass, plants,
flowers, bushes and other greenery grows on the
roofing material. Storm water is absorbed into the
soil and managed more easily than with a bare
roof. Heating and cooling costs are reduced, and
the air quality is improved. A green roof is a roof of
a building that is partially or completely covered
with vegetation, planted over a waterproofing
membrane.
6. SOLAR THERMAL CLADDING
Solar thermal cladding is a passive solar
building method designed specifically
to hold heat during the winter. The
sun's energy is stored within this
material and passed through to the
building for heat retention purposes.
The visibility of piping regulate through
the glazing.
Electrochromic glass can shift
from clear to opaque based on
external stimuli such as an
electrical current or UV rays. It
eliminates the need for shades
and other window treatments,
while adapting to current
conditions passively. Additional
benefits include blocking the vast
majority of UV rays.
ELECTROCHROMIC GLASS PASSIVE SOLAR
Another way to leverage a sustainable
solar energy source is to construct the
building based on the passive solar
concept. The facility's location and
design maximize solar energy for
heating during winter, while reducing
its impact during warmer months.
Proactive Maintenance
Facility managers use preventative maintenance to avoid unscheduled building downtime, but this often leads
to parts getting replaced well before their effective lifespan completes. IoT sensors allow managers to move to
a proactive system that only schedules repairs and replacements when absolutely needed.
7.
8. Passive design
Passive design is design that does not
require mechanical heating or cooling.
Buildings that are passively
designed take advantage of
natural climate to maintain
thermal comfort.
In passive solar building design,
windows, walls, and floors are
made to collect, store, reflect, and
distribute solar energy in the
form of heat in the winter and
reject solar heat in the summer.
Material uses
Sustainable Building materials have the following features:
Durable &
Easily
Maintained
Less
processing
requirement
Low odor &
Low emitting
Cost Effective Aesthetic
Rat Trap Bond in walls is adopted by some States.
It keeps environment inside the schools comfortable while
reducing material usage.
9. ENERGY USE
WHAT ?
Total energy required
for the extraction,
processing, manufacture
and delivery of building
materials to the building
site.
WHY ?
Energy consumption
produces CO2. Embodied
energy is considered an
indicator of the overall
environmental impact of
building materials
HOW ?
Materials to be selected
to balance embodied
energy with factors such
as climate, availability of
materials & transport
costs.
When selecting building
materials, the embodied
energy should be
considered with respect
to.
VENTILATION
Natural Ventilation
Driven Ventilation
Stack Ventilation
10. Water use
Rajasthan, falling in Arid Zone,
practices Rain Water Harvesting to
conserve water in a tank (“Tanka’).
Water from rain accumulated in school
campus and terrace is conserved in
Tanka and used for drinking,
preparation of MDM or stored for
future use.
conclusion
> Surprisingly, good green buildings often cost only a few percentage points or no more
to build than conventional designs.
> Integrated design processes that identify the most efficient, holistic approaches to
building green can reduce these initial costs.
> There are also many green products and materials that cost the same or even less than
conventional ones.
