Post-Insulating traditional massive walls in Southern Europe: A moderate thermal resistance can be more effective than you think

Posani, Magda; Veiga, Rosário; Freitas, Vasco Peixoto de

doi:10.1016/j.enbuild.2023.113299

Cited by 12 publications

(5 citation statements)

References 37 publications

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“…The results suggest that the hazelnut-shell-based and A. donax-based composites could be employed as indoor coating boards, passively regulating internal conditions, hygrothermal comfort, and energy demand [73,88,89]. These types of building composites could also be useful for the preservation of architectural heritage, namely, vernacular buildings.…”

Section: Additional Discussionmentioning

confidence: 99%

Hygroscopicity and Morphology of Bio-Based Boards—The Influence of the Formulation

Cintura,

Nunes,

Molari

et al. 2024

Applied Sciences

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The internal structures and the hygroscopicity of bio-based boards consisting of giant reed (Arundo donax L.) and hazelnut shells as bio-aggregates, and a sodium silicate solution as the adhesive, were investigated. The aim was to evaluate the influence of each material (the bio-aggregates and adhesive) and their distributions in the boards on the final performance. By carrying out X-ray computed tomography, the internal structures and the porosities of the boards were determined, allowing important considerations of their hygroscopicity. The voids’ percentages were between 26% and 36% of the total volume of the composites. Both the materials and the composites demonstrated high hygroscopicity. In particular, the mixtures of the bio-aggregates and the sodium silicate allowed reaching a moisture buffering value of 7.44 g/(m2%RH) for the A. donax-based composite, 3.86 g/(m2%RH) for the hazelnut-shell-based composite, and 4.65 g/(m2%RH) for the mixture-based composite. Besides the identification of the contributions of the materials, a detailed discussion of the assessed properties was carried out to use these bio-based boards in vernacular historic construction. The results show how the aggregate type and the adhesive content affected the final behavior, demonstrating the importance of a conscious material choice. Furthermore, helpful information for the future development of these types of bio-based boards and their possible optimization was provided.

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Section: Additional Discussionmentioning

confidence: 99%

Hygroscopicity and Morphology of Bio-Based Boards—The Influence of the Formulation

Cintura,

Nunes,

Molari

et al. 2024

Applied Sciences

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“…There are energy studies in which the typology of farmhouses in Mediterranean countries is studied [4,[61][62][63][64][65]. Furthermore, the bioclimatic design of vernacular architecture has been evaluated and quantified through energy simulations [66][67][68][69][70][71]. The modeling procedure in the OpenStudio application for SketchUp and the simulation using the EnergyPlus 8.6.0.software are common in the evaluation of energy consumption in buildings [39,[72][73][74][75][76][77][78][79] and in research related to natural ventilation [80,81].…”

Section: Literature Reviewmentioning

confidence: 99%

Assessment of the Thermal Properties of Buildings in Eastern Almería (Spain) during the Summer in a Mediterranean Climate

Sáez-Pérez,

García Ruiz,

Tajani

2024

Sustainability

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Within a context in which temperatures are increasing due to global warming, it is important to assess the capacity of buildings, old and modern, to respond to this new situation. Recent studies have highlighted the importance of understanding more about the thermal properties of traditional constructions. This study quantifies the impact of the high summer temperatures typical of the Mediterranean climate on traditional farmhouses in Eastern Almería (Spain). The study group of farmhouses was divided into three models representative of the different types of Eastern Almería vernacular architecture. Energy consumption in the three models was simulated using EnergyPlus. The three models were assessed in free-floating conditions. The window-to-wall ratio and U-factor values were studied in order to evaluate potential benefits in terms of energy efficiency. Outdoor and indoor temperatures were compared. Finally, an adaptive thermal comfort analysis was performed according to ASHRAE 55. Results highlight the ability of Eastern Almería farmhouses to mitigate extreme temperatures.

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“…Other cases regarding museums or ancient buildings with different climate control strategy requirements can be found in the literature, namely [24][25][26][27][28][29][30][31].…”

Section: Figurementioning

confidence: 99%

Energy Efficiency in Historic Museums: The Interplay between Thermal Rehabilitation, Climate Control Strategies and Regional Climates

Silva,

Henriques

2023

Applied Sciences

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Museums housed in historical buildings combine the intrinsic value of the collections with the historical and architectural values of the building itself. Although usually made with thick elements with high thermal inertia, very effective in damping and delaying the heat flow, these buildings are usually characterized by elements with low thermal resistance, poor-quality windows and low area/volume ratio in the noblest buildings, which renders them ineffective at maintaining a stable indoor climate adequate for conservation, comfort and energy efficiency issues. In this paper, a simulation study was carried out to analyze the impact of the building location (weather), thermal envelope and climate control strategies by analyzing a generic room of the National Museum of Ancient Art of Lisbon. A simulation study was carried out for 15 European cities to verify the impossibility of standardizing the rehabilitation solutions in cultural heritage since energy needs depend on the location. It was concluded that the focus on climate control strategies has great potential for energy reduction and that in temperate climates of southern Europe, the improvement of thermal transmittance has a reduced effect on the building’s response.

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Post-Insulating traditional massive walls in Southern Europe: A moderate thermal resistance can be more effective than you think

Cited by 12 publications

References 37 publications

Hygroscopicity and Morphology of Bio-Based Boards—The Influence of the Formulation

Hygroscopicity and Morphology of Bio-Based Boards—The Influence of the Formulation

Assessment of the Thermal Properties of Buildings in Eastern Almería (Spain) during the Summer in a Mediterranean Climate

Energy Efficiency in Historic Museums: The Interplay between Thermal Rehabilitation, Climate Control Strategies and Regional Climates

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