Purpose The purpose of this paper is to describe the cross-fertilisation process between the concept of resilience and building conservation. The authors discuss how the conservation field can address new issues posed by climate change and whether the concept of resilience plays a role within the framework of sustainable building conservation. Design/methodology/approach Starting from the use of resilience as a “travelling concept”, different interpretations of the term emerging from different fields are compared and interrelated in order to understand how this concept can impact future research in building conservation. Findings In addition to summarising recent developments in conservation theory with a special focus on how sustainability has influenced the field, this work also suggests some lines of research where resilience could foster interdisciplinary approaches to building conservation and presents some controversial outcomes. Originality/value The paper raises a discussion on how the concept of resilience could renew the field of building conservation, helping contemporary society to address the challenges of climate change.
This work illustrates the contribution of flood risk assessment and adaptation to set up a conservation management plan for a masterpiece of 20th-century architecture. Case study is the iconic complex, internationally known as the National Art Schools of Cuba. It consists of five buildings built in the early 1960s within a park of Habana next to the Caribbean Sea. The path of the river (Rio Quibù) crossing the estate was modified to fit the landscape design. The complex has then been exposed to the risk of flooding. The School of Ballet, located in a narrow meander of the river, slightly upstream of a bridge and partially obstructing the flow, is particularly subject to frequent flash floods from the Rio Quibù, and it needs urgent restoration. Keeping ISA Modern is a project aimed at preserving the Schools complex. Based upon in situ surveys on the Rio Quibù and local area measurements during 2019, numerical modelling, and previous work by the Cuban National Institute of Hydraulic Resources, we pursued a flood risk analysis for the area, and a preliminary analysis of available risk reduction strategies. Using HEC-RAS 2D software for hydraulic modelling, we evaluated the flooded area and the hydraulic conditions (flow depth, velocity) for floods with given return periods. Our results show that SB is a building most subject to flooding, with high levels of risk. Defense strategies as designed by Cuban authorities may include a (new) wall around the School of Ballet and widening of the river channel, with high impact and cost, although not definitive. Temporary, light, permanent, and low cost/impact flood proofing structures may be used with similar effectiveness. We demonstrate that relatively little expensive hydraulic investigation may aid flood modelling and risk assessment in support of conservation projects for historically valuable sites. This may support brainstorming and the selection of (low to high cost) adaptation and risk reduction measures in the coastal areas of Cuba in response to ever increasing extreme storms and sea level rise controlling flood dynamics under transient climate change.
This paper presents a literature review about aerogel-based products for building, focusing on the plasters used within the architectural restoration sector. Aerogel has entered the construction field in the last two decades as a component of many insulation products, due to its high thermal performance. Aerogel-based plasters allow the matching of high thermal performance and limited thickness. This makes them suitable when retrofitting an existing building and also when restoring a heritage building. We analyze the results of recent research, focusing on the most commonly used methods for assessing the thermal performances and durability of aerogel-based plasters. As a result of this review, we propose a guideline for manufacturing samples destined for laboratory tests.
This paper presents a research to balance building conservation, users’ comfort and energy efficiency of a masterpiece of XX century architecture. The Urbino University Colleges were designed by architect Giancarlo de Carlo and built since 1962 to 1983 beside the Renaissance city. They host more than 1,000 students within 5 dormitories and 62,000 m2 surface. Authors discuss some outcomes from the “Keeping it modern” research program financed by the Getty Foundation in 2016, which aims at providing the Colleges with a sustainable conservation plan. The goal is to lower heating and operational costs to allow funds in conservation activities. Specific issues regard: the striking dimensions of the complex, the constructive features (brickwork walls, exposed concrete structures, single-glazed windows) and the lack of data about the hygrothermal performances.\ud The research thus includes a hygrothermal analysis, a proposal for the energy retrofitting, a building-HVAC model, a test on a pilot site. Authors have monitored surface temperatures, indoor air temperature and humidity for one year, even mapping their distribution through a digital psychrometer. Thermal imaging has been used to detect heat losses, thermal bridges and heat gains due to the solar radiation. Data have fed a building-HVAC model, which was a reference to design an appropriate strategy for retrofitting and improving the energy efficiency of the complex. Some solutions are being implemented on a pilot site. The building performances before and after retrofitting are compared.\ud Results provide indications to merge conservation and sustainability of a XX century heritage building.\ud In conclusion, the solid knowledge of each case confirms being required to support a retrofit proposal of a heritage building, moreover in case of a XX century building, as the cultural value of such a huge heritage is often disregarded to improve its energy performance
<p><strong>Abstract.</strong> This paper discusses the impact of the advanced systems of architectural survey and modelling to the research on the Conservation Management Plan (CMP) for architectural heritage, particularly when such a tool is applied to the 20th century architectural heritage. The authors focus on a comparison between the Building Information Modelling (BIM) technology and the Geographic Information Systems (GIS). The Conservation Management Plan for the National Art Schools of Havana in Cuba is used as case study. Given the plurality of buildings and various levels of interest in such a context, conservation and management needs, the need to share the results with non-specialized stakeholders, the need to combine different scales of analysis and different typologies of materials, the results point out the advantages of a GIS platform. The conclusions open to further possibilities of integrating GIS and BIM to the specific task of effectively conserving and managing the 20th century architectural heritage.</p>
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