Historic Building Energy Audit and Retrofit Simulation with Hemp-Lime Plaster—A Case Study

Agliata, Rosa; Marino, Alfonso; Mollo, Luigi; Pariso, Paolo

doi:10.3390/su12114620

Cited by 18 publications

(17 citation statements)

References 41 publications

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“…Some papers discuss the energetic performance of historic buildings after the application of hemp-lime compared with gypsum lime [61]. For instance, Agliata et al [62], using a case study "Palazzo Jadicicco", found that the overall energy performance of the building increased by around 20% with a one-level improvement of the building energy class, from E to D. Besides, if it is a good result, it should underline that the decrease in thermal transmittance was not sufficient to fulfill the regulatory requirements, in Italy.…”

Section: State-of-artmentioning

confidence: 99%

Assessment of Mechanical and Thermal Properties of Hemp-Lime Mortar

Parcesepe

Masi

Lima³

et al. 2021

Materials

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The use of renewable and natural materials characterized by the low environmental impact is nowadays a key issue for the sustainable development of the construction industry. For this reason, the interest for natural fibers, to be used as reinforcement in composites as an alternative to other fibers, is continuously growing. In this paper, the use of hemp for reinforcing lime mortar used as plaster is considered with a multidisciplinary approach, taking into consideration the structural and thermal performance. Natural fibers have several advantages compared to industrial ones, such as low cost, low environmental impact, biodegradability, renewable nature. Moreover, these can show remarkable mechanical performance in relation to specific weight, and sometimes, as in the case of hemp fibers, these can improve the thermal insulation capacity of the plaster. However, the experimental results on the mechanical features are still lacking, especially to assess their durability, and the variability of thermal parameters with the mechanical characteristics. Therefore, this paper proposes an experimental program, developed at Laboratory of Materials and Structures (LAMAS) of the University of Sannio (Italy), aimed at investigating the main mechanical properties (compression strength, flexural strength) of lime mortar reinforced by hemp fibers and subjected to various environmental exposures and aging processes. The characterization is completed with the measurement for the produced samples of the thermal conductivity by means of the standardized guarded hot plate technique.

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Section: State-of-artmentioning

confidence: 99%

Assessment of Mechanical and Thermal Properties of Hemp-Lime Mortar

Parcesepe

Masi

Lima³

et al. 2021

Materials

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“…Despite the abundance of the literature on sustainability and enormous advocation for the use of such sustainable materials as better alternatives for reducing the adverse effects caused by the production and use of conventional materials in Ghana (Agyekum et al, 2020), there is a lack of studies about the potential use of hemp as a sustainable building material. Though the value of hemp has been questioned and relegated to the background in Ghana over the years, evidence from the body of knowledge worldwide suggests that it is an essential material in the building industry following the numerous properties it possesses (Kolodinsky et al, 2020;S aez-P erez et al, 2020;Agliata et al, 2020). As a matter of fact, following the deliberations on the possible passage of a legal bill in Ghana for the cultivation of industrial and medicinal hemp, it is crucial to seize this opportunity to explore this useful material as an alternative material in the delivery of green buildings which is gaining attention in Ghana.…”

Section: Factors Limiting the Adoption Of Hempmentioning

confidence: 99%

“…S aez-P erez et al (2020) identified this problem and advised that to ensure that countries move into mainstream production and use of hemp in building products, green building designers must understand these innovative materials and encourage its adoption for buildings. Literature summarises the factors limiting the adoption of hemp-based building materials to include technical, commercial, knowledge, regulatory, psychological and invisible issues (Agliata et al, 2020;Ronchetti, 2007). Table 2 summarises most of these factors as extracted from the literature 3.…”

Section: Hemp As An Alternative Sustainable Building Materials and Ba...mentioning

confidence: 99%

Factors limiting the adoption of hemp as an alternative sustainable material for green building delivery in Ghana

Agyekum

Adinyira

Oppon

2021

IJBPA

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PurposeThe increased awareness of global environmental threats like climate change has created an upsurge of interest in low embodied carbon building materials for green building delivery. Though the literature advocates for the use of hemp-based building materials, there is no evidence of studies to explore its potential use in Ghana. Therefore, this study explores the potential factors that limit the adoption of hemp as an alternative sustainable material for green building delivery in Ghana.Design/methodology/approachA structured questionnaire was used to solicit the views of built environment professionals operating in construction, consulting and developer firms. The questions were developed through a comparative review of the related literature and complemented with a pilot review. Data were analysed via descriptive and inferential statistics.FindingsOn the average, the majority of the respondents showed a moderate level of awareness of hemp and its related uses in the construction industry. Also, certain key factors like the perceived association of hemp with marijuana, lack of expertise in the production of hemp-related building materials, farmers not getting the needed clearance for the cultivation of hemp, lack of legislation by the government in the legalisation of hemp and the inadequate knowledge of consumers on the benefits of hemp-based building materials were identified as potential limitations to the adoption of hemp as an alternative sustainable material for green building delivery.Originality/valueThe findings from this study provide insights into a less investigated area in sub-Saharan Africa and further provide new and additional information to the current state-of-the-art on the potential for the use of hemp in the building construction sector.

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“…LCA can be a useful tool for the conservation of historic buildings [31][32][33]. LCA can contribute to the reduction in LCCO 2 emissions of historic buildings by prolonging the service lives of used materials [34], proposing energy-efficient seismic strengthening [35] and improving the energy efficiency of buildings [36][37][38][39]. However, the reliable application of LCA to conservation practice requires further investigation and practice [40][41][42].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Life-Cycle Assessment Analysis: Application to Restoration Projects and New Construction in Alpine Climate, Japan

Endo

Takamura

2021

Sustainability

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The present paper discusses the applications of life-cycle assessment (LCA) to construction works in Japan. LCA has been frequently used to assess the environmental impacts of new construction. Nonetheless, the applications of LCA to restoration have not been fully confirmed to date. It is said that historical buildings may contribute to sustainable development. Nonetheless, as for heritage buildings, since the protection of cultural value is usually prioritised, their environmental impacts may not be sufficiently explored. To this aim, this paper evaluated the environmental impacts of the restoration of heritage buildings. This paper consisted of two tasks. First, the restoration projects of heritage buildings in Japan were introduced. The restoration of two heritage houses was discussed, referring to heritage protection legislation in Japan. Second, LCA was performed on the restoration of heritage houses and the construction of contemporary houses. Environmental impacts were compared between the restoration and new construction with regard to greenhouse gas emissions and operational energy use. A focus was given to the amount of materials used. Restoration consumes a limited amount of materials compared to new construction, although the energy use of heritage buildings is considerable. The environmental impacts of restoration were quantified so that they were compared with those of new construction. The comparison indicated issues applying LCA to heritage buildings.

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Historic Building Energy Audit and Retrofit Simulation with Hemp-Lime Plaster—A Case Study

Cited by 18 publications

References 41 publications

Assessment of Mechanical and Thermal Properties of Hemp-Lime Mortar

Assessment of Mechanical and Thermal Properties of Hemp-Lime Mortar

Factors limiting the adoption of hemp as an alternative sustainable material for green building delivery in Ghana

Evaluation of Life-Cycle Assessment Analysis: Application to Restoration Projects and New Construction in Alpine Climate, Japan

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