Double-Skin Facades for Thermal Comfort and Energy Efficiency in Mediterranean Climate Buildings: Rehabilitating Vulnerable Neighbourhoods

The ongoing global energy crisis in Europe has intensified energy poverty in vulnerable households, prompting a critical examination of passive retrofit strategies for improving the habitability of obsolete social housing in southern Europe from the 1960s. Given the Mediterranean climate’s character...

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Main Authors: Álvaro López-Escamilla, Rafael Herrera-Limones, Ángel Luis León-Rodríguez
Format: Article
Language:English
Published: MDPI AG 2024-01-01
Series:Buildings
Subjects:
Online Access:https://www.mdpi.com/2075-5309/14/2/326
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author Álvaro López-Escamilla
Rafael Herrera-Limones
Ángel Luis León-Rodríguez
author_facet Álvaro López-Escamilla
Rafael Herrera-Limones
Ángel Luis León-Rodríguez
author_sort Álvaro López-Escamilla
collection DOAJ
description The ongoing global energy crisis in Europe has intensified energy poverty in vulnerable households, prompting a critical examination of passive retrofit strategies for improving the habitability of obsolete social housing in southern Europe from the 1960s. Given the Mediterranean climate’s characteristics (hot summers and mild winters), these buildings possess low thermal resistance envelopes designed for heat dissipation in summer but contribute to elevated heating demands in colder months. In response to the pressing need for solutions that strike a balance between reducing energy demand and ensuring year-round comfort, this research explores diverse approaches. Drawing insights from built prototypes in Colombia and Hungary and utilizing a validated simulation model in Seville, Spain, this study investigates the feasibility of implementing a double-skin envelope on building facades and assesses the impact of thermal insulation in the air chamber. So, the research specifically aims to find an equilibrium between lowering energy demand and maintaining adequate comfort conditions, concentrating on the renovation of obsolete social housing with envelopes featuring low thermal resistance in the Mediterranean climate. Results indicate that, due to the poor thermal envelope, the influence of thermal insulation on comfort conditions and energy savings outweighs that of the double skin. Consequently, the emphasis of renovation projects for this climate should not solely concentrate on passive cooling strategies but should strive to achieve a positive balance in comfort conditions throughout the year, encompassing both warm and cold months.
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spelling doaj.art-b0f7e0284f99409ea47f90eee39c06742024-02-23T15:09:55ZengMDPI AGBuildings2075-53092024-01-0114232610.3390/buildings14020326Double-Skin Facades for Thermal Comfort and Energy Efficiency in Mediterranean Climate Buildings: Rehabilitating Vulnerable NeighbourhoodsÁlvaro López-Escamilla0Rafael Herrera-Limones1Ángel Luis León-Rodríguez2University Institute of Architecture and Building Sciences, School of Architecture, University of Seville, Avda. Reina Mercedes 2, 41012 Seville, SpainUniversity Institute of Architecture and Building Sciences, School of Architecture, University of Seville, Avda. Reina Mercedes 2, 41012 Seville, SpainUniversity Institute of Architecture and Building Sciences, School of Architecture, University of Seville, Avda. Reina Mercedes 2, 41012 Seville, SpainThe ongoing global energy crisis in Europe has intensified energy poverty in vulnerable households, prompting a critical examination of passive retrofit strategies for improving the habitability of obsolete social housing in southern Europe from the 1960s. Given the Mediterranean climate’s characteristics (hot summers and mild winters), these buildings possess low thermal resistance envelopes designed for heat dissipation in summer but contribute to elevated heating demands in colder months. In response to the pressing need for solutions that strike a balance between reducing energy demand and ensuring year-round comfort, this research explores diverse approaches. Drawing insights from built prototypes in Colombia and Hungary and utilizing a validated simulation model in Seville, Spain, this study investigates the feasibility of implementing a double-skin envelope on building facades and assesses the impact of thermal insulation in the air chamber. So, the research specifically aims to find an equilibrium between lowering energy demand and maintaining adequate comfort conditions, concentrating on the renovation of obsolete social housing with envelopes featuring low thermal resistance in the Mediterranean climate. Results indicate that, due to the poor thermal envelope, the influence of thermal insulation on comfort conditions and energy savings outweighs that of the double skin. Consequently, the emphasis of renovation projects for this climate should not solely concentrate on passive cooling strategies but should strive to achieve a positive balance in comfort conditions throughout the year, encompassing both warm and cold months.https://www.mdpi.com/2075-5309/14/2/326social housingMediterranean climatethermal comfortenvelopeenergy povertydouble-skin facade
spellingShingle Álvaro López-Escamilla
Rafael Herrera-Limones
Ángel Luis León-Rodríguez
Double-Skin Facades for Thermal Comfort and Energy Efficiency in Mediterranean Climate Buildings: Rehabilitating Vulnerable Neighbourhoods
Buildings
social housing
Mediterranean climate
thermal comfort
envelope
energy poverty
double-skin facade
title Double-Skin Facades for Thermal Comfort and Energy Efficiency in Mediterranean Climate Buildings: Rehabilitating Vulnerable Neighbourhoods
title_full Double-Skin Facades for Thermal Comfort and Energy Efficiency in Mediterranean Climate Buildings: Rehabilitating Vulnerable Neighbourhoods
title_fullStr Double-Skin Facades for Thermal Comfort and Energy Efficiency in Mediterranean Climate Buildings: Rehabilitating Vulnerable Neighbourhoods
title_full_unstemmed Double-Skin Facades for Thermal Comfort and Energy Efficiency in Mediterranean Climate Buildings: Rehabilitating Vulnerable Neighbourhoods
title_short Double-Skin Facades for Thermal Comfort and Energy Efficiency in Mediterranean Climate Buildings: Rehabilitating Vulnerable Neighbourhoods
title_sort double skin facades for thermal comfort and energy efficiency in mediterranean climate buildings rehabilitating vulnerable neighbourhoods
topic social housing
Mediterranean climate
thermal comfort
envelope
energy poverty
double-skin facade
url https://www.mdpi.com/2075-5309/14/2/326
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