Building Renovation: Which Kind of Guidelines could be Proposed for Policy Makers and Professional Owners?

Cappelletti, Francesca; Mora, Tiziano Dalla; Peron, Fabio; Romagnoni, Piercarlo; Ruggeri, Paolo

doi:10.1016/j.egypro.2015.11.189

Cited by 19 publications

(13 citation statements)

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“…However, several benefits which could promote and increase the refurbishment activities are currently not incorporated in the RLMs system, such as the potential enhancement of the indoor environment. An indicator such as the increase of health and comfort levels is one of the concerns of the homeowners, according to the literature [31,58,59]. This represents a challenge since some comfort-related issues are not directly translatable in terms of energy and emissions savings in the cost-optimal analysis [60].…”

Section: Discussionmentioning

confidence: 99%

“…The certificate is required whenever a building is constructed, or for existing buildings before being marketed for sale or rent. EPCs are produced using standard methods with standard assumptions about energy usage so that the energy efficiency of one building can easily be compared with another building of the same type [31]. This allows prospective buyers, tenants, owners, and occupiers to see and compare information on the energy efficiency and carbon emissions from a building, so they can consider energy efficiency and fuel costs as part of their investment decision.…”

Section: Energy Performance Certificatesmentioning

confidence: 99%

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Shortcomings and Suggestions to the EPC Recommendation List of Measures: In-Depth Interviews in Six Countries

Caceres

2018

Energies

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Dwellings built between 1945 and 1980 have the largest energy demand in the EU, which by 2009 represented 70% of the final energy use in buildings. A great portion of these dwellings have not been retrofitted and most of them were not built with any energy efficiency measures, since most of the energy regulations were implemented after the oil crisis in the 70s. To face this issue several actions were taken in the EU, among these, the implementation of Energy Performance Certification, which includes a Recommendation List of Measures (RLMs) to retrofit the property. The main objective of this study is to identify the weaknesses of the RLMs and to suggest changes to improve the quality and impact of this feature. The results indicate that to retrofit an existing building, the RLMs lack information for decision-making. The study suggests important barriers to overcome for achieving potential energy reductions in existing residential buildings, highlighting improvements to the recommendation content and its implementation.Energies 2018, 11, 2516 2 of 14 and the Energy Efficiency Directive (2012/27/EU). These directives have developed legislations aiming to provide the EU with up to 65 Mtoe savings in the buildings sector by 2020. With these legislations, MSs commit to create an overview of their national building stock, to identify cost-effective ways to renovate according to building type and climate, and to create policies including a list of national measures for funding energy efficiency renovations. Furthermore, it is required that existing buildings undergoing major renovation meet minimum energy performance requirements in so far as this is technically, functionally and economically feasible [12]. One of the tools that is closely related to the previous goals is the Energy Performance Certificate (EPC), which states that for the existing building the EPC must include recommendations for the cost-optimal or cost-effective improvement of the energy performance of a building or building unit. Moreover, it is mentioned that EPCs intend to provide accurate and valuable information to building owners and tenants on the energy performance of their buildings. Measures to ensure quality information are the requirement for qualification schemes for experts, quality control and enforcement, which must be ensured, in particular through national independent control systems that MSs must set up in line with the Energy Performance of the Building Directive (EPBD) requirements.Increasing the renovation rate is not an easy task. There are many obstacles that prevent retrofitting from taking place, and these need to be addressed to find effective solutions. Studies which focused on the barriers that explain the low retrofitting activity of residential buildings are numerous, and identify a wide range of barriers as influential factors [13], such as legal and organizational barriers [14,15], economic barriers [2,16,17], lack of benefits [18], technical barriers [19,20], etc. However, it has been identified that along with the f...

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Section: Discussionmentioning

confidence: 99%

Section: Energy Performance Certificatesmentioning

confidence: 99%

Shortcomings and Suggestions to the EPC Recommendation List of Measures: In-Depth Interviews in Six Countries

Caceres

2018

Energies

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“…The certificate is required whenever a building is constructed or for existing buildings, before it is marketed for sale or rent. EPCs are produced using standard methods with standard assumptions about energy usage so that the energy efficiency of one building can easily be compared with another building of the same type (Cappelletti, Dalla Mora, Peron, Romagnoni, & Ruggeri, 2015). EPCs and inspection reports intend to provide accurate and valuable information to building owners and tenants on the energy performance of their buildings.…”

Section: Energy Labelling Systemmentioning

confidence: 99%

The impact of the weather data file on the energy performance certificate, the case of Norway

Caceres

Zenginis

Vik

2018

Linköping Electronic Conference Proceedings

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Energy Performance Building Directive (EPBD) ask the Member of States to develop a mandatory energy labelling scheme for new and existing buildings, which should include a label rating of the energy efficiency of the building and a list of recommended energy saving measures. The label will provide prospective buyers and tenants of a building with correct information about the energy performance of the building to compare with other options. However, some countries use only one or a limited number of weather zones. In a country like Norway, with significant variations in weather conditions between locations, this is likely to cause a deviation when comparing with the reality. This study aims to present the implication of using only one weather zone in Norway. The method used is based on the comparison of three types of weather files. The first one is used in the labelling system, which is a typical year, while the others are typical reference years from the local site from different providers. The results show significant differences in energy consumption, savings and labelling ratings when applying files with local weather data instead of the official weather data file used in Norway.

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“…Here, following some previews works [32][33][34][35], the authors propose integrating LEED O+M with green audits to guarantee a sounder evaluation of the operating strategies to apply during the preliminary analysis of a retrofitting project. A case study of a museum is considered, Ca' Rezzonico in Venice (Italy), that is not interested in renovation or a thorough conservation project (as required for the adoption of standard LEED protocols) but is interested in green management and maintenance.…”

Section: Introductionmentioning

confidence: 99%

An Integrated Energy and Environmental Audit Process for Historic Buildings

et al. 2019

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The valorization and sustainable management of historic centers is a topic relevant to the cultural identity and heritage of European cities. A rational strategy to preserve the centers must consider both energy and environmental retrofitting, even if this is a complex issue requiring interdisciplinary approaches, dedicated diagnostic procedures, and specific tools. Within this context, this paper proposes an integrated method for energy and environmental analysis specifically devoted to historical building retrofit. Attention is focused on cases in which building management is not interested in renovation or in a deep conservation project, but instead in green management and maintenance overhaul. The basis of the procedure is the Leadership in Energy and Environmental Design for Existing Buildings: Operations and Maintenance (LEED O+M) rating protocol. The global goal was the definition of an intervention strategy indicating the principal direction of action. The first step is identifying critical issues in the operation of the building through energy diagnosis and dynamic thermophysical simulations. The second step is defining a panel of appropriate retrofit measures. The third step is choosing between alternatives to increase the sustainability performance following an environmental assessment scheme. Ca' Rezzonico in Venice (Italy), a 17th-century palace, nowadays the seat of a museum, was used as a case study to apply the proposed methodology.Unfortunately, the evaluation of environmental and energy performance of historical buildings is complex and requires dedicated tools, sophisticated diagnostic procedures, and an interdisciplinary approach [6][7][8]. The energy requalification process must not work against the conservation necessities; it has to be an instrument of protection [9,10].Energy and environmental diagnosis should be integrated for better identifying inefficiencies and wastefulness and to define the most appropriate retrofit measures [11]. In this context, two tools exist: the green energy audit that integrates the methodologies for evaluating energy performance (energy audit) and environmental impacts (green assessment) tools to guide green retrofits [12], and the green assessment protocols [13]. The most common of these analysis tools are multi-criteria, and evaluations are based on comparisons with real or reference performance [14,15]. Developed by the United States Green Building Council (USGBC) in 1998, currently Leadership in Energy and Environmental Design (LEED), represents the most influential and widespread rating system [16]. This certification system has been set for all types of buildings and proposes different protocols according to the typology, from home to hospital, from data center to school. The USGBC database reports that more than 100,000 projects are listed or certified by LEED, making it the most used certification system in the world [17].The application of sustainability assessment protocols to the energy retrofit of historic buildings faces various difficulties [18,1...

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Building Renovation: Which Kind of Guidelines could be Proposed for Policy Makers and Professional Owners?

Cited by 19 publications

References 1 publication

Shortcomings and Suggestions to the EPC Recommendation List of Measures: In-Depth Interviews in Six Countries

Shortcomings and Suggestions to the EPC Recommendation List of Measures: In-Depth Interviews in Six Countries

The impact of the weather data file on the energy performance certificate, the case of Norway

An Integrated Energy and Environmental Audit Process for Historic Buildings

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