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Publicação
A aplicação do sistema CLT na habitação de média altura em Portugal para além da sustentabilidade
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Resumo(s)
A investigação incide sobre a arquitectura em madeira, especificamente no sistema CLT (Cross-Laminated Timber) e a sua aplicabilidade na construção, em Portugal, de edifícios de habitação multifamiliares de média altura. A investigação enquadra-se na procura de uma construção residencial mais sustentável na óptica do Desenvolvimento Regenerativo. Actualmente, assiste-se a uma evidente preocupação com questões de sustentabilidade em diversos sectores. Dados estatísticos colocam o sector da construção como responsável por 39% das emissões de CO2 mundiais (IEA e UNEP, 2019), sendo que o segmento mais significativo resulta da indústria associada à produção de betão armado (IEA e UNEP, 2019). Como linha de acção, e resposta a este cenário que carece de alternativas, propõe-se a adopção de soluções construtivas com menores emissões de CO2, como a madeira, procurando alcançar um impacto neutro ou mesmo positivo para o ambiente. Para isso, é possível equacionar a adaptação de sistemas já́desenvolvidos com sucesso noutros países, como o CLT, aferindo quanto à sua aplicação como alternativa aos sistemas de construção correntes em Portugal. A utilização de sistemas construtivos em madeira, particularmente CLT, que provenham de florestas sustentáveis e, eventualmente, de procedência nacional, será uma das formas de combater o problema das emissões e dar uma resposta integrada que contribui para os vários pilares do Desenvolvimento Sustentável – Sociedade, Economia e Ambiente. Desta forma, o sistema CLT é estudado visando avaliar a sua adaptabilidade à realidade nacional. Esta investigação visa perceber as dificuldades da sua aplicação por parte dos vários stakeholders, assim como o enquadramento legislativo e financeiro, no processo de concepção, construção e utilização, visando aferir de forma clara e inequívoca como a adopção deste sistema poderá impactar favoravelmente o alcance das metas nacionais e internacionais relativas aos compromissos futuros de near net zero e contribuir para ir além da sustentabilidade, ou seja, regeneração.
The research focuses on wooden architecture, specifically the CLT (Cross-Laminated Timber) system and its applicability in the construction of medium-rise multi family housing buildings in Portugal. The research is part of the search for more sustainable residential construction from the perspective of Regenerative Development. Currently, there is an evident concern about sustainability issues in several sectors. Statistical data places the construction sector as responsible for 39% of global CO2 emissions (IEA and UNEP, 2019), with the most significant segments resulting from the industry associated with the production of reinforced concrete (IEA and UNEP, 2019). As a line of action, and response to this scenario that lacks alternatives, it is proposed to adopt constructive solutions with lower CO2 emissions, such as wood, seeking to achieve a neutral or even positive environmental impact. To this end, it is possible to consider the adaptation of systems already successfully developed and implemented in other countries, such as CLT, assessing their application as an alternative to current construction systems in Portugal. The use of wooden construction systems, particularly CLT, which come from sustainable forests and, eventually, of national origin, will be one of the ways to combat the problem of emissions and provide an integrated response that contributes to the various pillars of Sustainable Development – Society, Economy and Environment. In this way, the CLT system is studied with a view to evaluating its adaptability to the national reality. This investigation aims to understand the difficulties of its application by the various stakeholders, as well as the legislative and financial framework, in the process of design, construction and use, aiming to clearly and unequivocally assess how the adoption of this system can favorably impact the achievement of national and international goals relating to future near net zero commitments and contribute to going beyond sustainability, that is, regeneration.
The research focuses on wooden architecture, specifically the CLT (Cross-Laminated Timber) system and its applicability in the construction of medium-rise multi family housing buildings in Portugal. The research is part of the search for more sustainable residential construction from the perspective of Regenerative Development. Currently, there is an evident concern about sustainability issues in several sectors. Statistical data places the construction sector as responsible for 39% of global CO2 emissions (IEA and UNEP, 2019), with the most significant segments resulting from the industry associated with the production of reinforced concrete (IEA and UNEP, 2019). As a line of action, and response to this scenario that lacks alternatives, it is proposed to adopt constructive solutions with lower CO2 emissions, such as wood, seeking to achieve a neutral or even positive environmental impact. To this end, it is possible to consider the adaptation of systems already successfully developed and implemented in other countries, such as CLT, assessing their application as an alternative to current construction systems in Portugal. The use of wooden construction systems, particularly CLT, which come from sustainable forests and, eventually, of national origin, will be one of the ways to combat the problem of emissions and provide an integrated response that contributes to the various pillars of Sustainable Development – Society, Economy and Environment. In this way, the CLT system is studied with a view to evaluating its adaptability to the national reality. This investigation aims to understand the difficulties of its application by the various stakeholders, as well as the legislative and financial framework, in the process of design, construction and use, aiming to clearly and unequivocally assess how the adoption of this system can favorably impact the achievement of national and international goals relating to future near net zero commitments and contribute to going beyond sustainability, that is, regeneration.
Descrição
Tese de doutoramento. Arquitetura (Tecnologia e Gestão da Construção). Universidade de Lisboa. Faculdade de Arquitetura. 2025
Palavras-chave
Construção de média altura em Portugal Sustentabilidade Construção em Madeira Sistema CLT Habitação de Madeira Medium-rise construction in Portugal Sustainability Wooden Construction CLT system Wooden Housing
Contexto Educativo
Citação
SANTOS, João Pedro Mendonça Pereira Gago dos - A aplicação do sistema CLT na habitação de média altura em Portugal para além da sustentabilidade. – Lisboa : FA, 2025. – Tese de doutoramento
Editora
Universidade de Lisboa, Faculdade de Arquitetura