World history tells us that construction has always existed to meet the immediate and basic needs of man, and, in this time of rapid growth, did not take into consideration construction techniques and environmental preservation. This paper aims to present investigation and diagnosis at the stage of site construction, exploring the environmental impacts caused by construction site, with exposure of some interventions to minimize this effect, integrating the concepts of sustainable construction. Given the historical background of continued environmental degradation caused by human needs, which resulted in serious risks to society, and knowing that more than 60% of solid wastes generated in urban centers are from the construction site, the need arises to develop techniques and solutions to mitigate these impacts. Structure of the research/approaches: The paper is structured in four parts: description of an evolutionary history regarding environmental concern, a sustainable construction issue approach, surveying interference at the stage of site construction, and a case study focusing on environmental sustainability during the site construction phase of an enterprise. Contributions: The characteristics of a sustainable building interfere directly in the relation between man/environment with issues that can be minimized when designing a project, which should be applied from the construction of a building to the end of its life cycle. A sustainable enterprise is not defi ned not only by environmental and social benefi ts in its use and operation but also in its construction.

This paper presents an analysis of the theme of sustainability applied to the construction site, showing some impacts that may be imposed on the environment during the construction phase of a building and presenting some solutions to alleviate these effects. World history shows us that buildings have always been constructed to meet the immediate and basic needs of humankind. At this time of rapid growth, scant care has been taken about construction techniques or environmental conservation. Indeed, increased environmental degradation has resulted in serious risks to society and, bearing in mind that over 60% of the solid waste generated in urban centers is from construction sites, the need arises to develop techniques and solutions to mitigate these impacts. This paper seeks to present a research study and diagnosis at the construction site stage into the process of sustainability of an undertaking, with the completion of a case study. The article is structured in four parts: presentation of a brief introduction to the topic and the research methodology to be used; description of certification processes for civil construction; description of risks and mitigation of same at the construction site phase; and a case study focusing on sustainability during the construction phase of an undertaking. A sustainable undertaking is defined not only by environmental and social benefits in its use and operation, but also in its construction. This phase can cause serious damage and impacts to the neighborhood and the environment, such as depletion with excessive consumption or wastage of natural resources and increased pollution caused by poor management of the construction site.

Greenroofs reduce building exterior-interior thermal flux and mitigate high internal air temperatures, especially in tropical climates. Tropical greenroofs are given little attention and their use remains restricted to a very low percentage of roofs due to high costs compared to traditional roofs, weight overload (mainly due to the chosen substrate) and potential waterproofing problems. We here present an alternative greenroof technique based on a reduction of the current Modern Extensive Greenroof (MEG) technique to half of its original layers. The feasibility of superficially rooting plant species from extreme habitats was tested in full scale on a single family house over three consecutive years. The innovative horticultural system is based on a substrate-free method, which has several advantages over traditional systems, including easier maintenance and minimal total weight. The reduced layout also lowers material and labor costs, facilitating widespread retrofitting of installations, mainly on low income houses in urban areas of developing countries. From a sparse initial planting, total coverage was attained in two years and 218 taxa, belonging to 20 families and various growth types, were successfully grown on the new greenroof system. Species were able to survive and grow even though signs of dynamic photoinhibition were detected. The viability of the plant assemblage together with the ability to store water due to a high degree of succulence among species indicates a broad potential for research into the use of cultivated epiphytic, lithophytic and psammophilous flora for the installation of tropical greenroofs.

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Compreender as necessidades e características dos usuários da edificação de ensino é essencial para o desenvolvimento de projetos escolares qualificados para a prática do ensino-aprendizagem. A presente análise faz parte de uma pesquisa de mestrado acadêmico. A mesma constrói uma relação de aspectos de conforto ambiental, que precisam ser explorados nas soluções projetuais, direcionados a edifícios educacionais especializados no atendimento de educandos com transtorno do espectro do autista (TEA). O levantamento destes aspectos possui a finalidade de propor uma estrutura flexível a ser explorada durante todo o processo de projeto arquitetônico, traçando assim caminhos e estratégias de conforto ambiental que visam responder às particularidades existentes no processamento sensorial dos autistas. Tais averiguações são pertinentes visto o grande número de diagnósticos de autismo realizados a cada ano no Brasil e no mundo. Esta demanda contemporânea levanta diversos questionamentos sobre o modo como se tem projetado edificações de ensino. A partir das análises realizadas verifica-se que a arquitetura escolar impacta diretamente o comportamento e a progressão acadêmica dos autistas. Deste modo, compreender as necessidades desse usuário é essencial para a concepção de prédios escolares capazes de estimular adequadamente os seus sentidos e impulsionar seu desenvolvimento educacional.