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A Growing Green Roof is a roof on top of a building which is covered with greenery and vegetation. This may be done either by planting plants directly onto the roof or through growing in containers. Also known as green roofs, growing roofs are becoming extremely popular in developing countries in order to combat the heat factor.
Green roofs provide both insulation for heat preserving in winters and heat reduction in summers.
Reduces Heat Loss within the Building
In a study by Brad Bass of University of Toronto it was observed that this environmentally friendly manner helps reduce heat loss in winters thus, saving energy consumption. Additionally, it adds mass and thermal resistance value.
Reduces Heat Absorption into the Building
Aids in reducing cooling loads of a building by 50-90% if it is placed in a terrarium by evaporative cooling. Interestingly, if a large number of building shift to green roof theory it can even drop the city’s overall temperatures drastically.
Filters carbon dioxide and pollutant away from the atmosphere diminishing diseases such as asthma. Additionally, green roofs filter other pollutants and heavy metals out of the rainwater too.
The soil on green buildings helps block lower frequencies and the plants planted onto them block higher frequencies.
Living roofs can earn Leadership in Energy and Environmental Design (LEED) certification. It is a green building program developed by a non-profit US Green Building Council working on a set of ratings for design, construction, operation and maintenance of green buildings world wide. Thus, it creates awareness and responsibility of the use of natural resources.
Leadership in Energy and Environmental Design (LEED) is one of the most popular green building certification programs used worldwide. Developed by the non-profit U.S. Green Building Council (USGBC) it includes a set of rating systems for the design, construction, operation, and maintenance of green buildings, homes, and neighbourhoods that aims to help building owners and operators be environmentally responsible and use resources efficiently.
A normal building absorbs the sun’s radiation and re-emits it as heat, as a result of which the urban areas are 4 degree Celcius warmer than the suburbs.
Having a green roof creates a natural habitat for plants, insects and other animals which is otherwise limited within populated cities.
Studies show that Green and growing roofs enhance the life of a roof by almost 200%.The process of waterproofing, with is the base for growing vegetation shields the roof from ultra-violet radiation and physical damage. In another estimate it is believed that the by the installation of a green roof the real estate value could increase by 7%.