MedZEB: a new holistic approach for the deep energy retrofitting of residential buildings

Padula, Marco; Picenni, Francesca; Malvezzi, Roberto; Laghi, Luca; Lissén, José Manuel Salmerón; Flor, Francisco José Sánchez de la; Mateo-Cecilia, Carolina; Soto-Francés, Laura; Assimakopoulos, Margarita-Niki; Karlessi, Theoni

doi:10.13128/techne-22743

Cited by 2 publications

(1 citation statement)

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“…One of the most important lessons learned from the "first generation" prefabricated deep renovation pilot projects (Arnesano et al, 2018;Assimakopoulos et al, 2020;Pihelo et al, 2020) that the main barriers related to specific technical solutions (Targo Kalamees et al, 2016;Kuusk et al, 2015), hygrothermal performance (Pihelo et al, 2016;Pinotti et al, 2018), cost effectiveness Padula et al, 2018), but deal with the deep renovation and nZEB knowledge, for both the building owners/users (Mjörnell et al, 2014) and for the designers . Although the multiple benefits of increased energy performance through a holistic renovation approach, including indoor environmental quality, health, well-being, and moisture safety, are widely recognized (Barmparesos et al, 2019;Ilomets et al, 2017), these benefits have not yet been seamlessly integrated into consumer-centric business models.…”

Section: Introductionmentioning

confidence: 99%

Circular Renovation of an Apartment Building with Prefabricated Additional Insulation Elements to Nearly Zero Energy Building

Nigumann,

Kalamees,

Kuusk

et al. 2024

sace

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Construction and demolition waste constitute more than one-third of the total waste generated in the European Union. The pursuit of sustainable renovation must progress further to encompass elements that ensure reuse or recyclability. A fundamental transformation, involving extensive renovation and a transition to circular renovation practices, is indispensable in effectively addressing the pressing challenge of decarbonization for the entire building stock in Europe. In this study, we have developed a circular deep renovation solution using prefabricated modular external additional insulation elements to achieve a nearly Zero Energy Building (nZEB). Circular prefabricated modular external additional insulation elements were formulated, manufactured, and installed. The potential for disassembly and reutilization of materials was developed and demonstrated for both a prototype and the complete deep renovation. The analysed prefabricated modular solutions exhibited greater potential for circularity compared to the traditional External Thermal Insulation Composite System (ETICS) due to their superior demountability and reusability characteristics. The overall cost of the renovation, which included the installation of a new heating system, replacement of water and sewer pipes, addition of 50 kW photovoltaic (PV) panels on the roof, installation of new balconies, addition of a balanced ventilation system with heat recovery, and replacement of the electricity system in common areas, amounted to 505 €/m². Following the deep renovation, the Energy Performance Value was measured to be 92 kWh/(m²·a), resulting in an EPC class of A. This implies that the building now meets the requirements for nZEB in accordance with Estonian legislation, with no performance gap.

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Section: Introductionmentioning

confidence: 99%

Circular Renovation of an Apartment Building with Prefabricated Additional Insulation Elements to Nearly Zero Energy Building

Nigumann,

Kalamees,

Kuusk

et al. 2024

sace

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Potential of Energy Savings in the Public Housing Stock of Comunitat Valenciana Region by Applying the MedZEB Cost-Optimal Methodology

Escudero

García³

et al. 2021

Applied Sciences

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Improving energy efficiency in buildings has a key role to play in achieving the ambitious goal of EU-wide climate neutrality by 2050, set out in the European Green Deal. This paper describes a cost-optimal analysis of residential buildings of Valencian Community, Spain. Thus, an assessment of the contribution of total primary energy savings per year (MW/h) of the social dwellings managed by EVha, Entitat Valenciana d’Habitatge i Sòl (eng. Valencian entity for dwelling and ground) towards the national contribution is presented in this paper. To assess it, the MedZEB cost-optimal methodology has been applied to optimise the performance of the building’s envelope. This means that Optimal Renovation Strategies through Life-Cycle Analysis have been applied to obtain the Packages of Optimal Solutions of the different reference buildings in a reference climate. First, the renovation scenario with 100% of the building stock being renovated has been calculated. Then, the renovation scenario of 1%, being the current European rate of renovation and, finally the renovation scenario of 2%, given that the objective of the Renovation Wave is to at least double the annual energy renovation rate of residential and non-residential buildings by 2030 and to foster deep energy renovations.

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MedZEB: a new holistic approach for the deep energy retrofitting of residential buildings

Cited by 2 publications

References 0 publications

Circular Renovation of an Apartment Building with Prefabricated Additional Insulation Elements to Nearly Zero Energy Building

Circular Renovation of an Apartment Building with Prefabricated Additional Insulation Elements to Nearly Zero Energy Building

Potential of Energy Savings in the Public Housing Stock of Comunitat Valenciana Region by Applying the MedZEB Cost-Optimal Methodology

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