Abstract
Worldwide, buildings have been presented as one of the main energy consumers and, for that matter, there is an increased tendency to invest in policies and measures that promote more efficient buildings. Among the chosen strategies, the need to promote the use of passive solutions and retrofit the existing building stock is often pointed out. Portuguese building stock has proven to be obsolete in terms of thermal comfort, which can directly affect the energy demand for climatization purposes. Considering the great solar availability in the country, when compared to other European locations, building retrofit with solar passive technologies can be a suitable solution. This paper aims to review studies on the application of solar passive technologies to retrofit façades in the Mediterranean climate context, with a special focus on Portugal. Four retrofit passive solar technologies were reviewed, namely glazing, sun shading, sunspaces and Trombe wall technologies.
Highlights
Worldwide, buildings are presented as one of the main energy consumers [1]
To counter the aging of the existing European building stock, the best solution is to building retrofit [6], which can be seen as an opportunity to reduce energy consumption and improve the thermal comfort and well-being of the occupants [7]
The aim of this paper is to provide a literature review on the application of solar passive technologies to retrofit the façades of Portuguese buildings, considering the Mediterranean climate
Summary
Buildings are presented as one of the main energy consumers [1]. Poor design of existing buildings, along with the improvement of living over the years, has contributed to a significant increase in energy consumption for space conditioning [2].several policies and regulations have been designed to promote more efficient buildings. Poor design of existing buildings, along with the improvement of living over the years, has contributed to a significant increase in energy consumption for space conditioning [2]. The Energy Performance of Buildings Directive, known as EPBD, is an example of policies [3,4,5]. It targets new and existing buildings as the European building stock is mostly represented by the existing buildings. To counter the aging of the existing European building stock, the best solution is to building retrofit [6], which can be seen as an opportunity to reduce energy consumption and improve the thermal comfort and well-being of the occupants [7].
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