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1GREEN HOMES …..process to productSpace Matrix Design Consultants Pvt. Ltd.22nd Jun’13
2Sustainable livingis a philosophy of modern living based on economy,technology, environmental preservation and social values withoutsacrificing comfortSource: Soontorn Boonyatikarn et. Al, Bangkok
3Man as a Sustainable beingHot - HumidHot - Dry
4What is SustainableWhat is Sustainable Architecture ?Architecture ?• Site analysis and development• Climatological design• Building form and Orientation• Passive heating and cooling• Ventilation and indoor air quality• Building materials• Embodied energy• Thermal performance• Water management• Waste management• Energy managementSustainable architecture is building design that accounts for all aspects of the buildingthat will affect and be affected by the environment. It looks at a holistic design approachbased on the following factors:
5With 3.85 billion years of experience the natural world is the only global and reliable guide we have to judge our actions.Constant 29Degrees2 – 45 degrees- Internal temperature varies by only 1 degree- The equivalent of a 2km high building- Breathes similar to a human lung- Captures natural air flow- Fire and water resistantNature : Mentor, measure, model
66Green Features for HomesProcess…
7Maximise Human ComfortEfficient PlanningDesign for ChangeMinimise Running Costs and EnergyConsumptionMaximise Usable SpaceMinimise Capital CostMinimise Maintenance CostsProtect and Enhance Ecological ValuesDesign Objectives
8Master PlanningSecured by DesignLandscape & ecologyCommunity involvementMicro-climateLiving Streets(e.g..Shared surfacing)Movement & PermeabilityAdaptability &FlexibilityResource management[Energy, water ]Place makingWaste management
10Materials ResourceStrategyRe-use building components Recycled materialsResponsible woodsuppliersLow embodied energyThe site as thesource/local materialsLonger product lifeReduce quantity of materials usedWaste management duringconstruction & operation
1111Green Features for HomesProcess…
1212Site Efficiency• Site should be near public transit and household services andaccessible by pedestrian pathways.• Design to have minimal footprint – compact design and stacking floorplans. Retain natural landscape and trees, minimize hard paving onsite.• Design common areas for social activities within the site.• Reduce heat island effect by providing covered parking or basementparking.
1313Water Efficiency• Rainwater harvesting – Employ techniques to capture rainwater andfilter it through screens or paper filters.• Minimize indoor water usage by installing water efficient plumbingfixtures.• Limit the use of turf throughout the site. Instead, select species thatare well-adapted to the micro-climate.Also, consider xeriscaping as anapproach to landscaping.•Provide efficient irrigation techniques such as central shut-off valve,sub meters, moisture sensor controller etc.• Provide on-site grey water treatment system. Treat it to standardssuitable for flushing and irrigation purposes.
1414Energy Efficiency• Adapt energy efficient design – building orientation to be such thatthe longer axis is in the N-S direction. Minimize E-W exposure. Thiswill take advantage of natural daylight and air movement. Provideshading devices over windows along the S and W facades. UseLow-e double glazing to reduce heat gain.• Use energy efficient lighting, heating and cooling equipment.• Provide solar water heating system to satisfy hot waterrequirement.• Energy Efficient Lighting Systems – In the interiors and exteriorsuse efficient fittings such as CFLs, T5 lamps, light emitting diodesetc.
1616Materials• Specify products that contain recycled content such as flyash blocks, glass, steel, cement, tiles, aluminum andcomposite wood.• Use rapidly renewable materials such as bamboo,agrifiber, linoleum, wool, cotton insulation.• Use locally manufactured materials.• Encourage the use of salvaged materials and productssuch as flooring, paneling, doors, frames, furniture, brick,etc.
1717Indoor Air Quality• Ensure connectivity between the interior and exterior byproviding good day lighting and views. Orient the buildingssuch that max. day lighting to all spaces is achieved for mostpart of the day.• Have adequate window openings that will allow for crossventilation.• Materials like paints and adhesives should have lowemissions.
1818Green Features for HomesProduct…
19Chowtara Mane, Mangalore :• Large voids & courtyards to enhance ventilation• Pool – water body for evaporative cooling• Rain water harvesting•Orientation to cut down heat
20Residence for Rashmi Hedge, Bangalore:• Extensive internal landscape• Varying volume within the house – helps to moderate theinternal temperature•Skylight for natural light•Large overhangs and recessed outdoor spaces
21Dhunjibhoy Farmhouse :• Layering and scaling of the built form.• Central axis was used to penetrate all these layersconnecting the outside to the inside• Deep verandah act as an interface between the outdoorand the indoor.• Mud plastered verandahs to maintain a continuity fromthe outdoor to the indoor
22Praful Pillai Residence :• House is designed around the pattern of the land• Minimalist house accommodating the existing trees• Slight shift in the wall angle of the living room brings indispersed light•Split level within the house cleverly transforms the volumeinto floor space
23Ashok Shetty’s Residence :• Indoor – outdoor connect• Large openings, maximising human comfort• Designed to retain large outdoor areas.
24Srinivasan’s Residence :• Indoor – outdoor connect• Soft light, maximising human comfort• Beer bottles used as wall features
25Dr.Rekha Residence :• Material Juxtaposition• Interplay of landscape indoor and outdoor•Continuity of space
26Need based Appropriate Architecture• To preserve heritage of our PAST• Continuity with our past in our PRESENT• Conserving energy for our FUTURE
27“What good is a house,if you havent got a decent planet to put it on?”- Henry David Thoreau