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The objective of Green Homes is to facilitate the creation of energy efficient, water efficient, healthy, comfortable and environmentally friendly houses.
Fossil fuel is a slowly depleting resource, world over. The use of fossil fuel for transportation has been a major source of pollution. The rating system encourages the use of alternate fuels for transportation and captive power generation.
The rating system encourages projects to use recycled and reused material and discourages the use of virgin wood thereby, addressing environmental impacts associated with extraction and processing of virgin materials. Reduced usage of virgin wood is also encouraged.
Health and well-being of occupants is the most important aspect of Green Homes. IGBC Green Homes Rating System ensures minimum performance of day lighting and ventilation aspects, which are critical in a home. The rating system recognizes measures to minimise the indoor air pollutants.
To minimise indoor water usage by installing efficient water fixtures.
ITEMS | UNITS | BASELINE AVERAGE FLOW RATES / CAPACITY |
---|---|---|
Flush Fixtures | LPF | 6/3 |
Flow Fixtures | LPM | 12 |
* At a flowing water pressure of 3 bar
Note:
Landscape to be designed to ensure minimum consumption of water. Ensure that atleast 25% of the landscaped area is planted with drought tolerant species.
Note:
Encourage the use of energy-efficient appliances to reduce energy consumption:
Encourage the use of solar energy for water heating:
Promote energy-efficient lighting systems:
To encourage the use of products that contain recycled materials to reduce environmental impacts associated with the use of virgin materials.
Encourage the use of building materials available locally thereby minimising the associated environmental impacts. Ensure atleast 50% of the total building materials by cost used in the building should have been manufactured within a radius of 500 Km.
To ensure connectivity between the interior and the exterior environment, by providing good daylighting:
For living spaces which are large in size, part of the areas which have access to daylighting can be factored in the calculation. Living spaces which are used for multi-purposes such as dining and drawing can be considered as separate spaces based on the function. The separating boundary need not be a physical boundary.
To avoid indoor pollutants affecting indoor air quality by providing adequate outdoor air ventilation. Install openable windows or doors in living spaces, kitchens and bathrooms such that the openable area is designed to meet the criteria as outlined in the table below: Design Criteria for Openable Windows and Doors
Space Type | Openable area as a percentage of total carpet area |
---|---|
Living Spaces | 10% |
Kitchens | 8% |
Bathrooms | 4% |
To ensure that kitchens and bathrooms are better ventilated to improve indoor environment:
Location | Minium Airflow | Minimum Airflow | |
---|---|---|---|
Kitchen | For < 9.3 sq.m (100 sq.ft) floor area | 100 cfm | For > 9.3 sq.m (100sq.ft) proportionally increase air flow |
Bathroom | For < 4.64 sq.m (50 sq.ft) floor area | 50 cfm | For > 4.64 sq.m (50sq.ft) proportionally increase air flow |
To encourage the use of materials with low emissions so as to reduce adverse health impacts for building occupants: