Sustainable housing technology SUSTAINABLE HOUSING (WHY, WHAT & HOW)
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general concept behind the eco-friendly housing concepts with some examples , how to go green with luxuries, just live with nature to get good outcomes
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Sustainable housing technology SUSTAINABLE HOUSING (WHY, WHAT & HOW)
- 2. SUSTAINABLE HOUSING WHY, WHAT & HOW SUBMITTED TO; PRO. S. MUKHOPADHYAY SUBMITTED BY; VIVEK YADAV
- 3. GREEN / SUSTAINABLE HOUSING A. Why do we need it? C. What resources are needed for Housing? D. How can we make it green? B. What should/ shouldn’t housing provide?
- 4. GREEN / SUSTAINABLE HOUSING A. Why do we need it? Firstly, we DO need housing
- 7. GREEN / SUSTAINABLE HOUSING A. Why do we need it? Firstly, we DO need housing Secondly, the housing being provided is not solving the problem
- 8. Higher housing demand population growth income growth rapid urbanisation THERE IS A Current housing provision models too expensive bad for the environment socially isolated NOT BEING MET BY Poverty traps Empty city centres Unsafe dormitory suburbs Higher resource & energy use More waste & pollution Habitat & biodiversity loss Resource depletion Climate change
- 9. GREEN / SUSTAINABLE HOUSING A. Why do we need it? Firstly, we DO need housing Finally, green housing can solve the problem Secondly, the housing being provided is not solving the problem
- 10. Higher housing demand population growth income growth rapid urbanisation THERE IS A Current housing provision models too expensive bad for the environment socially isolated NOT BEING MET BY Poverty traps Empty city centres Unsafe dormitory suburbs Higher resource & energy use More waste & pollution Habitat & biodiversity loss Resource depletion Climate change WE NEED GREEN HOUSING WHICH IS WHY
- 12. comfort, fresh air, sun- & daylight shelter security /safety privacy & dignity WITH economic opportunities environmental benefits social & community services AND space for family & personal life Financial burdens Soil, air & water pollution Social problems Urban sprawl , etc. GREEN HOUSING ONLY THROUGH
- 13. GREEN / SUSTAINABLE HOUSING C. What resources are needed for Housing?
- 14. HOUSING ALL HOUSING NEEDS GREEN HOUSING Proper Design Land Materials Labour Transport BUILT WITH Finance & OF COURSE ServicedWHICH IS Proper Research Finance Water Materials Energy Labour Energy TO RUN, NEEDS
- 15. GREEN / SUSTAINABLE HOUSING D. How can we make it green?
- 18. CURRENT FOCUS: ENERGY TYPES OF ENERGY USE IN BUILDINGS EMBODIED used in mining & manufacture GREY to transport materials & labour INDUCED to build in materials by machines & labour USAGE by people & machines in buildings MAINTENANCE & DEMOLITION 5% 80% 3% 3% 9% BUILDING LIFETIME ENERGY USE 10% 20% 41% 20% 2%5%2% HVAC Lighting Water Heat & Cooking Appliances Data Transport Water supply
- 19. STRATEGIES TO REDUCE ENERGY CONSUMPTION How to reduce overall energy consumption in housing? A. Demand management B. Equipment Efficiency C. Renewable Energy D. Passive building design USAGE ENERGY SOLAR ENERGY ?????
- 21. 2. Through thick or thin: THERMAL MASS 4. Up, up and away: STACK EFFECT VENTILATION (A) 1. East or west, north is best: ORIENTATION PASSIVE BUILDING DESIGN 3. Let the outside in: CROSS-VENTILATION USAGE ENERGY
- 22. LIGHTING & APPLIANCES • Incandescent light bulbs • Fluorescent lighting • LED – • light emitting diode ENERGY STAR qualified appliances use about 75% less energy than standard incandescent bulbs and last up to 10 times longer. They can also save you up about $30 or more in electricity costs over each bulbs lifetime.
- 24. Gray water separation and treatment Collect water from showers, bathroom, sinks, washers for surface irrigation A storage tank can be used to accept gray water Water is then released slowly to plants
- 25. Rain Water Managemant STORM WATER CONSERVATION METHODS Cluster homes Minimize impervious surfaces (driveways) Avoid directly connected impervious surfaces Harvest rooftop rainwater Use porous pavement materials Avoid curbs –allow flow to vegetation Avoid steep slopes Avoid unnecessary soil compaction
- 26. 0% 20% 40% 60% 80% 100% 120% Detached House Semi-detached house Row house Apartment Heat loss/ gain per typology BUILDING FORM • Relationship with outside conditions • Optimum shape east-west to north ratio height to width ratio surface to volume ratio • Zoning & orientation of spaces • Typology (surface exposure) e.g. row houses e.g. courtyard buildings • Flexibility The right shape and orientation can reduce building energy consumption by 30 to 40% at no extra cost.
- 27. Innovative housing strategies “Housing in dense, walkable neighbourhoods, typically in mixed-use environments, is one example of a sustainable housing strategy.” “It is important to provide a variety of housing options, where you don’t have live in a Manhattan-style high-rise to achieve density. Other innovative sustainable housing types include accessory dwelling units, housing over shops, and co-housing.” HOUSING CITY BLOCK
- 28. • Microclimate modify / create • Coverage, bulk: footprint, density • Circulation: access, connectivity, route, space, topography • Site-scaping: existing & introduced vegetation, permeable paving • Water supply, harvesting, run-off, infiltration, recycling • Waste recycling, storage • Energy: supply & use, heating, cooling, ventilation, daylight, etc SITE PLANNING &ANALYSIS
- 30. Environmentally Friendly Features— Good for Earth and Wanted by clients NAR 2014 Profile of Buyers and Sellers
- 31. Green Building Certifications • ENERGY STAR for BuildingsProgram • H o me Energy Rating System • LEED • National Green Building Standard • Passive House • Green Globes • Living BuildingChallenge • N e t Zero EnergyBuilding
- 32. SOME EXAMPLES OF GREEN HOUSING
- 33. SIERRA BONITA APARTMENTS, WEST HOLLYWOOD. Tighe Architecture & West Hollywood Community Housing Corporation • 42-unit low-income affordable housing project • for those with special needs • pilot project for WeHo’s Green Building Ordinance (WeHo = West Hollywood). • Façade and roof integrated solar electric panel system http://inhabitat.com/top-6-green-supportive-and-low-income-housing-projects/ LOS VECINOS, CHULA VISTA, SAN DIEGO Wakeland Housing & Development Corporation • first LEED Platinum, • 100% solar-powered, • low-income housing. • natural ventilation, • Tank-less water heaters, • Energy Star appliances • low-flow water fixtures. • “recycled” property
- 34. RICHARDSON APARTMENTS, MARKET + OCTAVIA, SAN FRANCISCO David Baker + Partners, Community Housing Partnerships • low-income housing for formerly homeless. • Build It Green GreenPoint Rated • Green Communities. DEVINE LEGACY ON CENTRAL, PHOENIX Perlman Design Group and Pyatok Architects non-profit service provider Native American Connections • 65-unit mixed-income affordable housing • along Phoenix’s Metro Light Rail Line. • natural cross-ventilation, vertical stack ventilation, • sunscreens • energy savings, water usage savings, • sustainable materials • LEED Platinum in progress http://inhabitat.com/top-6-green-supportive-and-low-income-housing-projects/
- 35. • 222-unit affordable • green roofs: ‐ building insulation, ‐ storm water run-off, ‐ gardens • regular windows offset by ‐ coloured panels, ‐ private balconies, ‐ Sunshades ‐ diffuse direct solar radiation. • exterior common space ‐ fitness quad, ‐ orchard, ‐ urban farm, • Solar PV • LEED Gold VIA VERDE, SOUTH BRONX, NEW YORK CITY Grimshaw & Dattner Architects http://architizer.com/blog/latest- trends-in-affordable-housing/
- 36. http://architizer.com/blog/latest-trends-in-affordable-housing/ • "sky villages“: 80 homes – own balconies overlook shared terrace & garden • 960 units broken down into smaller populations • added roof gardens on 3 towers, • oriented to maximize connection to existing park & new landscaped areas. • communal terraces allow breezes & daylight into dwellings to reduce energy dependence, • rooftop PV power all common spaces. NB: approx. 80 percent of Singaporeans live in public housing, including working & middle classes SKYVILLE AT DAWSON, SINGAPORE WOHA
- 37. Future ????? • take your house with you when you move. • Idea of Archigram’s 60’s Plug-in City • Crane embedded to move components at will. • Shouldn't be trapped in convention. Y Design Office's 75 storey high proposal for Hong Kong
- 39. Bibliography • Sustainable Housing Development in Urban Australia: exploring obstacles to and opportunities for ecocity efforts ,LOUISE CRABTREE, Macquarie University, Australia. • Sustainable Housing,Principles & Practice..by Brian Edwards and David Turrent. • Sustainable development for some: green urban development and affordability,Ann Dale & Lenore L. Newman. • Energy-efficient design for sustainable housing development ,Kamand M. Roufechaei*, Abu Hassan Abu Bakar, Amin Akhavan Tabassi (School of Housing, Building and Planning, Universiti Sains Malaysia, 11800 Penang, Malaysia). • Sustainable Housing in the Urban Context: International Sustainable Development Indicator Sets and Housing by Nessa Winston Montserrat Pareja Eastaway (Accepted: 7 July 2007 / Published online: 4 August 2007)
- 40. Thank you! Q U E S T I O N S ???
Editor's Notes
- That is undisputed. One just has to look at the high rentals advertised to see that there is an acute shortage of decent housing for the poor and lower to middle-income groups or even better, visit the informal settlements, which by UN Habitat definition, are slums:
- It is too expensive, out of the reach of most people. A recent study in Cape Town by Luyanda Mphalwa and his students, found that people do not really need housing. What they need is decent employment. With that, they can organise their own housing. I believe the picture in Namibia is a little different, as the acute shortage means that housing is out of the reach of even those with decent employment. A prospective NHE house owner must earn at least N$4 000 per month, a staggering amount considering that 52% of Namibians earned below N$2 500 per month and 87% below N$4 600 in 2011. It just creates housing, without any of the amenities that make cities work (what is called the agglomeration advantage). What is the point of living in a city if you do not have decent access to water, sanitation, energy, affordable food and other needed supplies, education for your children, employment, health facilities and positive social interaction opportunities such as access to your religion, ability to participate in sports or other social activities? Most conventional housing solutions create even less access to many of these amenities
- Space heating, ventilation & air-conditioning (HVAC) Lighting Water heating & cooking Household appliances Office machinery Industrial machinery