WGRC 2012

Page 1

Development of a modular system for vegetated surfaces in new buildings and retrofitting 1

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Maria Manso , Ana Virtudes , J.P. Castro-Gomes

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C-MADE, Centre of Materials and Building Technologies, Department of Civil Engineering and Architecture, University of Beira Interior, Covilh達, Portugal 1

mcfmm@ubi.pt, 2almmsv@ubi.pt, 3jpcg@ubi.pt

Abstract The effectiveness to implement green surfaces in buildings depends mostly of the interest and awareness of citizens and investors of their advantages. However, its implementation also depends on the simplification of the construction process and the adaptation to new and existing buildings. An analysis of the main green roofs systems available in the market based on the study of their composition, materials used and construction methods, shows that there are some difficulties in its general use. This work presents an interdisciplinary ongoing study for the development of a design concept either for green roofs or facades. It consists of a modular system based on pre-fabricated panels incorporating vegetation. The panels are constituted of layers of different materials, combining low density, porosity, water retention, thermal isolation, strength, durability and fire resistance. The concept being developed can be used to create vegetated surfaces on new or retrofitted buildings. Non-conventional alkali activated binder materials are used to build the panels of the system. The modular system can be self-supporting. It holds the growing media for plant development and can retain irrigation water for its use. This modular system can be adapted to different shape surfaces, sizes, inclinations or inaccessible places of buildings, which is designed to simplify the implementation and maintenance processes. Therefore, it can be used in densely parts of cities, where conventional green spaces are not feasible, bringing nature to the urban context.

World Green Roof Congress, 19-20 September 2012, Copenhagen Page 1


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