Green Buildings
Presented by:
1. Mohd. Nabeel Khan 2. Mohammad Mansoor 3. Umar Muhammad
What is a “Green Building”
“Green” Buildings are high performance
structures that also meet certain standards for reducing natural resource consumption
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.
What is a “Green Building” (contd.)
Thus, we can say a “Green Building” is one which uses less water, optimizes energy efficiency,
conserves natural resources, generates less waste and provides healthier space for occupants as
compared to conventional buildings.
Generally, plumbing, electrical, and HVAC systems are the main contributors in ensuring this is
attained as they are highly responsible to the energy savings that any building will eventually attain.
OBJECTIVES OF GREEN BUILDING
Green building are designed to reduce the overall impact of the built environment on human health and the natural environment by:
❖ Low Impact – Minimize impact on natural environment.
❖ Energy Efficient – Reduced Energy usage and Water usage.
❖ Healthy – Protect occupant health and increase productivity.
❖ Minimize waste – Designed and constructed in a manner that minimizes waste, pollution, and environmental degradation.
FUNDAMENTAL PRINCIPLES
Structure design efficiency
Energy efficiency
Water efficiency
Materials efficiency
Indoor Environmental Quality Enhancement
Waste and toxic reduction
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. A variation of every design variable may affect the
environment during all the building's relevant life- cycle stages.
It has the largest impact on cost and performance of building.
Energy efficiency
To reduce operating energy use, high-efficiency windows and insulation in walls, ceilings, and floors increase the efficiency of the building
envelope, (the barrier between conditioned and unconditioned space).
Another strategy, passive solar building design, is often implemented in low-energy homes.
Designers orient windows and walls and place awnings, porches, and trees to shade windows and roofs during the summer while maximizing solar gain in the winter.
Energy efficiency (contd.)
In addition, effective window placement (day
lighting) can provide more natural light and lessen the need for electric lighting during the day.
Solar water heating further reduces energy costs.
Onsite generation of renewable energy through solar power, wind power, hydro power, or biomass can significantly reduce the environmental impact of the building.
Water efficiency
Reducing water consumption and protecting water quality is the key objectives of sustainable building.
The use of non-sewage and greywater for onsite use such as site irrigation
will minimize demands on the local
aquifer.
Materials efficiency
Buildings materials should be renewable materials, recycle and friendly to the
environment and can generate surplus amount of energy.
Examples are lumber from forest,
renewable plant materials like bamboo and straw and other products that are
non-toxic, reusable, etc. Also, solar power panels, not only they provide lightening
but they are also a useful energy source.
Indoor Environmental Quality Enhancement
Indoor Air Quality seeks to reduce volatile organic
compounds, or VOCs, and other air impurities such as microbial contaminants.
Low or non-toxic: Materials that emit few or no carcinogens, reproductive toxicants, or irritants as
demonstrated by the manufacturer through appropriate testing.
Moisture resistant: Products and systems that resist moisture or inhibit the growth of biological
contaminants in buildings.
Systems or equipment: Products that promote healthy IAQ by identifying indoor air pollutants or enhancing the air quality.
Waste and toxic reduction
It is possible 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 vision of the council is to usher in a green building movement in India
and facilitate India to become one of
the global leaders in green buildings.
BENEFITS OF GREEN BUILDING
Buildings have a large effect on the environment, human health and the economy.
The successful adoption of GREEN
BUILDING development can maximize
both the economic and environmental
performance of the buildings.
ENVIORNMENTAL BENEFITS
Protect biodiversity and ecosystems
Improve air and water quality
Reduce waste streams
Conserve natural resources
ECONOMIC BENEFITS
Reduce operating costs
Create, expand, and shape markets for green product and services
Improve occupant productivity
SOCIAL BENEFITS
Enhance occupant comfort and health.
Heighten aesthetic qualities.
Minimise strain on local infrastructure.
Improve overall quality of life.
CONCLUSION
With the convergence of urbanization, globalization and rapidly changing and expanding economy, using these energy materials will help the world as well as
India in satisfying the shortage of building materials and also environmental
degradation.
Green building will also provide tangible and significant return on investment to contractors, architects and building
owners.
REFERENCES
• Cole, Ray. 2007, “Energy use and Urban Buildings in Handbook on Urban Sustainability”,Edited by: Nolberto Munier.
• JLLM, 2007, Accelerating Transformation :Investments in Indian Real estate, Knowledge Centre-White paper series volume 2:2, Jones Lang Lasalle Meghraj
• UNEP SBCI and UNEP FI…Knowledge base report, UNEP Sustainable Buildings and Construction Initiative and UNEPFinance Initiative.
• Krishnan Gowri, “Green Building Rating Systems” An Overview ASHRAE journal November 2004.
• Devi T, Laxmi, Green Building – Market opportunities and challenges”, 2012.
• Khosla, Radhika "Constructing Change: Energy Efficiency and India's Buildings Sector”The Hindu Business Line, January 2012.
• Fangzhu Zhang & Philip Cooke, “Green Buildings and Energy”, 2010 Cardiff University, UK.
• Energy Efficiency in Building Design and Construction, a report, BEE, 2010.
• Newsletter on Green Building From Indian Green Building Council, September 2007 Issue.
