Green Building
- 1. HBD DEPARTMENT OF CIVIL ENGINEERING Sustainable Built Environment: GREEN BUILDING NJP Vision: “To impart human values with competency in civil engineering field having innovative approach to satisfy global needs.” Mission: “To develop civil engineers of high technical skills with ethical values & give exposure to them about latest technological developments.” TAPI DIPLOMA ENGINEERING COLLEGE, SURAT
- 2. Contents 01 Goals of Green building 02 Advantages and disadvantages 03 Green Building Materials 04 Certification Agencies – GRIHA, LEED (Highlights & Criteria) 05 Life cycle assessment ( LCA ) 06 Siting and structure design efficiency 07 Energy efficiency Water efficiency Materials efficiency 08 Indoor environmental quality enhancement 09 Operations and maintenance optimization 10 Waste reduction COURSE OUTCOME: Design energy efficient buildings.
- 3. GREEN BUILDING Environmental sustainability is defined as responsible interaction with the environment to avoid depletion or degradation of natural resources and allow for long-term environmental quality A ‘green’ building is a building that, in its design, construction or operation, reduces or eliminates negative impacts, and can create positive impacts, on our climate and natural environment. Green buildings preserve precious natural resources and improve our quality of life.
- 7. Environmental Benefits. Reduction of Emissions. Conservation of Water. Advantages Disadvantages Waste reduction. Economic benefits. Improvement to the occupant’s health. Preservation of the natural environment. Increased recreation Initial cost. Availability of Materials. Location. Modern techniques. Expert knowledge.
- 8. Green Building Materials used in Construction 1. Earthen Materials 2. Wood 3. Reclaimed Wood 4. Bamboo 5. Cordwood 6. Straw Bale 7. Earth Bags 8. Slate/ Stone Roofing 9. Thatch 10.Natural Fiber 11.Cellulose 12.Cork 13.Polystyrene 14.Natural Clay 15. Non- VOC paints 16. Natural Fiber Floor 17. Fiber Cement 18. Stone 19. Mycelium 20. Ferrock 21. Sheep's Wool 22. Recycled Steel 23. Recycled Plastic 24. Straw Bales 25. HempCrete 26. AshCrete 27. Timbercrete
- 9. Certification Agencies – GRIHA, (Highlights & Criteria) All GRIHA Rating variants undergo periodical technical revisions under the supervision of GRIHA Technical Advisory Committee (TAC). Rating system consists of 31 criteria categorized under various sections. Criteria and their weightage
- 12. Certification Agencies – LEED(Highlights & Criteria) Leadership in Energy and Environmental Design (LEED) is a green building certification program used worldwide developed by the non-profit U.S. Green Building Council (USGBC) Criteria and their weightage Buildings can qualify for four levels of certification: Certified: 40-49 points Silver: 50-59 points Gold: 60-79 points Platinum: 80 points and above
- 13. LEED Certification Credit Categories In order to earn credits to achieve one of the above categories, the project must meet certain criteria and goals within the following categories: Location and transportation - You should take into consideration the location of your project and how it can be combined with the transportation option within the area, in other words how the users of the facility can get in and out of the facility. Materials and Resources- Earn credits by using sustainable and earth-friendly products, while reducing waste promoting better indoor air quality. Water efficiency - The building must be designed in such a way that potable water usage is reduced or resources can be reused, minimizing the needs of water inside the building. Energy and atmosphere - The building must enhance energy performance and promote great indoor air and environmental quality. Sustainable sites - Design the project in such a way that the natural resources and ecosystems nearby can naturally take part of the design minimizing environmental pollution. Indoor environmental quality - Increase daylight usage and promote natural ventilation. Innovation - Any idea that is not covered under the five LEED main areas. Regional priority credits - Addressing any particular concern based on the regional or geographical location.
- 14. C A C Y C L EL
- 15. Siting and structure design efficiency Building process Design stage Concept stage One of the major steps in a project life cycle, as it has the largest impact on cost and performance objective is to minimize the total environmental impact associated with all life-cycle stages of the building project. process is not as streamlined as an industrial process, and varies from one building to the other The foundation of any construction project is rooted in the concept and design stages.
- 16. Various Efficiency 01 Building materials: considered to be 'green' include rapidly renewable plant materials like bamboo, dimension stone, recycled stone, recycled metal and other products that are non-toxic, reusable, renewable, and/or recyclable. The EPA also suggests using recycled industrial goods, such as coal combustion products, foundry sand, and demolition debris in construction projects. Energy efficiency 02 Water efficiency 03 Materials efficiency Reducing water consumption and protecting water quality: The protection and conservation of water throughout the life of a building may be accomplished by designing for dual plumbing that recycles water in toilet flushing or by using water for washing of the cars. minimized by utilizing water conserving fixtures such as ultra-low flush toilets and low-flow shower heads. Use of water treatment and heating improves both water quality and energy efficiency while reducing the amount of water in circulation. A low-energy house is characterized by an energy-efficient design and technical features which enable it to provide high living standards and comfort with low energy consumption and carbon emissions. zero-energy building total amount of energy used by the building on an annual basis is equal to the amount of renewable energy created on the site. Designers orient windows and walls and place awnings, porches, and tree to shade windows and roofs during the summer while maximizing solar gain in the winter. Onsite generation of renewable energy through solar power, wind power, hydro power or biomass can significantly reduce the environmental impact of the building.
- 17. Indoor environmental quality enhancement The Indoor Environmental Quality (IEQ) category in LEED standards, one of the five environmental categories, was created to provide comfort, well-being, and productivity of occupants. The LEED IEQ category addresses design and construction guidelines especially: indoor air quality (IAQ), thermal quality, and lighting quality. Properly designed ventilation system to provide adequate ventilation of cleaner air from outdoors or recirculated, During the design and construction process choosing construction materials and interior finish products with zero emissions will improve IAQ. Indoor air quality is the control of moisture accumulation (dampness) leading to presence of bacteria and viruses as well as dust and other organisms and microbiological concerns. Adequate ventilation is also necessary to eliminate moisture from sources indoors including human metabolic processes, cooking, bathing, cleaning, and other activities. The use of wood products can also improve air quality by absorbing or releasing moisture in the air to moderate humidity. Operations and maintenance optimization If it is operated responsibly and maintained properly. Ensuring operations and maintenance(O&M) personnel are part of the project's planning and development process will help retain the green criteria designed at the onset of the project. The goal of waste reduction may be applied during the design, construction and demolition phases of a building's life-cycle, it is in the O&M phase that green practices such as recycling and air quality enhancement take place.
- 18. Waste reduction To reduce waste of energy, water and materials used during construction. Well-designed buildings also help reduce the amount of waste generated by the occupants as well, by providing on-site solutions such as compost bins(an outdoor container in which garden refuse and other organic waste is deposited in order to produce compost.) to reduce matter going to landfills. Deconstruction is a method of harvesting what is commonly considered "waste" and reclaiming it into useful building material. Centralized wastewater treatment systems can be costly and use a lot of energy. An alternative to this process is converting waste and wastewater into fertilizer, which avoids these costs and shows other benefits. By collecting human waste at the source and running it to a semi-centralized biogas plant with other biological waste, liquid fertilizer can be produced.
- 19. THANK YOU!!