Unit 2.pptx.pdf@#(& report)/*';!!__&134/
- 1. Unit 2 Green House Building Concept: Introduction to green building, benefits of green buildings, green building materials and equipment in India, requisites for constructing a green building, Important sustainable features for green building, Issues and strategies of green building and sustainable development. What is Green Building? Building or homes that are more energy efficient, Produce less waste and healthier to be inside. Who certifies the green building in India: 1. Green building for Integrated Habitat Assessment This has been developed by energy and resource institution and Ministry of renewable energy and its rating system is used is designing and evaluating new green building structure. 2. Indian green building council (IGBC) It is formed in 2001 and helps to provide green building certification for industry.
- 2. 3. Energy Conservation building code (ECBC) Indian Govt. designed ECBC for brand new commercial buildings and energy conservation buildings is to provide minimum requirements for energy efficient design and constructions of new buildings. 4. Leadership in Energy and Environment Design (LEED) It is a rating system framed by the united states green building council to check environmental performance of the building and encourage sustainable development. What is LEED? It is a leadership in Energy and Environmental Design - It is a green building rating system - It was introduced in 2000 - Rating was based on water saving, Energy efficiency, material selection, Indoor Environment and quality.
- 5. LEED-certified buildings have many benefits, including: •Lower operating costs LEED-certified buildings are more energy efficient and use less water, which can lead to lower utility bills. •Improved indoor air quality LEED-certified buildings are free of harmful chemicals and offer cleaner air and access to daylight. •Competitive advantage LEED certification can give construction companies a competitive edge because LEED-certified buildings are efficient and cost-effective. •Water conservation LEED-certified buildings use water-efficient features and alternative water sources, which can help reduce water costs and contribute to sustainable water management. •Energy efficiency LEED-certified buildings can use less energy, and some even generate their own energy from renewable sources. •Human health and well-being LEED certification supports wellness through green building and communities. •Improved image LEED certification can improve a building's image and establish it as a green building leader. •Higher rates Because sustainable green buildings are more positively viewed, building owners can charge higher rates.
- 6. A green building is a clean, sustainable building, designed with natural materials, uses little energy and renewable ones at that, is easy to maintain and available at a reasonable cost. Reducing waste, pollution and harm to the environment. Green buildings help reduce negative impacts on the natural environment by using less water, energy, and other natural resources; employing renewable energy sources and eco-friendly materials; and reducing emissions and other waste.
- 7. Construction of green building should be based on three Key components 1. Environmental Sustainability 2. Economical Sustainability 3. Social Sustainability Benefits of Green Buildings Environmental Benefits: ∙ Reduced Carbon Footprint: Green buildings are designed to minimize energy consumption through energy-efficient systems, renewable energy sources, and sustainable materials, leading to lower greenhouse gas emissions. ∙ Water Conservation: These buildings often include water-saving features like low-flow fixtures, rainwater harvesting systems, and water-efficient landscaping, reducing overall water usage. ∙ Waste Reduction: Green buildings emphasize the use of recycled and sustainable materials, reducing construction waste. Additionally, they often incorporate waste management practices that promote recycling and composting. ∙ Biodiversity Protection: By using sustainable land use practices and preserving natural habitats, green buildings help, protect and enhance local ecosystems.
- 8. Economic Benefits: ∙ Energy Savings: The energy efficiency of green buildings leads to lower utility bills. Over time, the reduced energy consumption can result in significant cost savings. ∙ Increased Property Value: Green buildings are often more attractive to buyers and tenants due to their lower operating costs and healthier indoor environments, leading to higher property values and rental income. ∙ Long-Term Durability: The use of high-quality, sustainable materials in green buildings often results in lower maintenance and repair costs over the building's lifespan. ∙ Incentives and Rebates: Many governments offer tax incentives, grants, and rebates for green building projects, reducing initial construction costs. Social Benefits: Improved Health and Well-being: Green buildings prioritize indoor air quality through the use of non-toxic materials, proper ventilation, and natural lighting, leading to healthier and more comfortable living and working environments. Enhanced Productivity: Studies have shown that occupants of green buildings tend to be more productive due to better air quality, natural lighting, and a comfortable indoor climate.
- 9. ∙ Community Impact: Green buildings can contribute to the development of sustainable communities by reducing strain on local infrastructure, enhancing public health, and promoting social equity. ∙ Educational Value: Green buildings often serve as educational tools, demonstrating sustainable practices to the community and encouraging wider adoption of eco-friendly techniques.
- 10. Green building materials and equipment in India: • These materials not only help reduce the environmental impact of buildings but also offer long-term economic benefits through energy savings and increased property value. • As the market for green building materials grows, more innovative and affordable options are likely to become available. Green Building Materials: 1. Fly Ash Bricks • Made from fly ash, a by-product of coal combustion in thermal power plants, these bricks are an eco-friendly alternative to traditional clay bricks. ∙ Benefits: They consume less energy during production, reduce the need for clay (thereby preserving topsoil), and have good thermal insulation properties.
- 11. 2. Autoclaved Aerated Concrete (AAC) Blocks AAC blocks are lightweight, precast foam concrete building blocks made from natural raw materials such as cement, lime, sand, and water. ∙ Benefits: They provide excellent thermal insulation, fire-resistant, and reduce overall building weight, leading to lower structural costs. 3. Bamboo: Bamboo is a rapidly renewable resource that is used in construction as a structural material or for interior finishes. ∙ Benefits: It’s strong, lightweight, and has a lower carbon footprint compared to conventional building materials like steel and concrete. 4. Recycled Steel: Recycled steel is used in structural frameworks, reinforcing bars, and other applications. ∙ Benefits: Reduces the need for new steel production, conserving resources and reducing emissions associated with mining and manufacturing.
- 12. Process of Design of Green Building: • Objectives of Design of Green building: Sustainability: - Environmental, Economical, Social To design a sustainable building first and foremost step is climatic study and physiological objective. Step 2: Study of site and surroundings 1. Site – surrounding context 2. Local culture and tradition 3. Materials and resources locally available 4. Traditional architectural and style 5. Exciting cite features – water body, buildings around. Step 3: Roles and responsibility should be done before the building plan Step 4: Site layout, Inter-Shading Site planning as per climatic and site analysis and explore optimization techniques for constructing buildings.
- 13. Step 5: Building form and Orientation - study of climatic data and sun path - lessen the insulation - Better performing buildings. Step 5: Adopt Passive Strategies depending upon climatic condition ( Earth air tunnel cooling, Geo thermal cooling, wind catchers, ventilations etc) Step 6: Building envelope Design • Thermal insulation – walls • Thermal mass – increase walls thickness • Air cavities – provide air cavities in walls • Surface finishing- light coloured paint on walls • Cool Roof • Green roof system