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TREBILCOCK, Maureen. Appropriate technologies for the design of green roofs. In: NUTAU: ARQUITETURA E URBANISMO: TECNOLOGIAS PARA O SÉCULO XXI, 2., 1998, São Paulo. Anais... São Paulo: USP, 1998.
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Abstract

The provision of vegetation on top of buildings has been part of a greening process carried out by authorities, planners, architects and environmentalists mainly in developed countries, following the aim to recover the extensive areas of green land lost by the processes of urbanisation. Although green roofs have ecological advantages over conventional ones, they have also some disadvantages that have to be dealt with; such as the extra weight imposed on the building structure and the need of careful maintenance. Usually, architects specify high tech materials and sophisticated irrigation systems in order to solve these problems, that restricts the provision of green roofs to high budget projects. Therefore, this paper explores the possibilities of designing and building green roofs at low cost, extending their potential to developing countries such as the South Americans, and chooses Central Chile as the specific context for the proposal. The conclusions stress out that appropriate technologies become the key principles of the design of green roofs in Chile, for they reflect people’s way of life, respond to local climatic conditions and use local renewable resources.
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