Addressing the challenges of public housing retrofits

Monteiro, Cláudia; Causone, Francesco; Cunha, Sónia; Pina, André; Erba, S.

doi:10.1016/j.egypro.2017.09.600

Cited by 32 publications

(19 citation statements)

References 9 publications

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“…Even by accounting GHG emissions saved, as 45 to 50/t [36]. 14 The overall value almost breakeven before the 30 year mark, but the windows' systems, with a high degradation rate, invert the results cycle. The accountable outcomes do not consider all gains, as the immediate comfort and households' health on a long-term (and general).…”

Section: Resultsmentioning

confidence: 99%

“…Something similar occurred to the passive solutions. The façade wall renovation went from the initial 40,000 m2 to 18,000 m2 [37], and the windows replacement, from initial 3,000 m2 to 14 Excluding GHG emissions of used materials and solutions, its logistics and build operations. 15 Both measures covering numerous buildings, but none received a complete renovation; some had external wall renovations and others window replacement [38].…”

Section: Resultsmentioning

confidence: 99%

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Social housing to nZEB - Portuguese context

Cortiços¹

2018

Creative Construction Conference 2018 - Proceedings

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In the 80's and 90's, the various Portuguese Governments set the goal of rehousing the majority of the low-income families without a proper house, through a program to build Social Housing. Municipalities assumed the role and developed the solutions to meet the needs. The necessities defined priorities, efforts were directed to quantity rather than quality: 120,000 apartments distributed by 24,500 buildings, in 25 years. Designed in-house or contracted out with a conventional approach and a limited budget, around 500 euros/m 2 . The construction was outsourced and hasty, due to time constraints. Although the construction were common, in technology and design solutions, some architectural prizes, National and International, were given to authorial projects. These became symbols of the progressive Portugal Architectural Heritage and of the success of the Portuguese Social Experience, recognized as architectural points of interest, for tourist and specialists. As time goes by, maintenance falls short and requires critical conservation, tenants demand rehabilitation and renovation, mostly to situations related to the loss of comfort and quality, associated with water damages in the constructive solutions. The research regarded the latest European Union policies, on GHG emissions and energy consumption reductions in new building design, to pursue the nZEB's, "nearly Zero Energy Building(s)" concept. By developing a low-cost building renovation founded on new constructive solutions to actualize the envelopes' response: decreasing maintenance's needs and expenses, increasing user comfort while aiming the reimbursement of the investment period. Based on the "Renovation or Rehabilitation -Decisive Gains (RoR-DG)," (Nuno D. Cortiços) benefits were accounted considering achieved savings minus investment: relying on the system's performance, as rated by the key indicators of "Facilities Maintenance Management Model" (Igal M. Sohet and Sarel Lavy). This approach was applied to measure the impact of the first Eco-Neighborhood, applied to a Lisbon social housing park (Bairro da Boavista, Monsanto). Although the Program's positive achievements, the results show a low impact on efficiency. For the future actions it is advisable an overall thermal reinforcement, follow-up measures, additional financial support, and the tenants' commitment.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Social housing to nZEB - Portuguese context

Cortiços¹

2018

Creative Construction Conference 2018 - Proceedings

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“…A large part of the costs and environmental loads of a building are influenced by the choices made in the design phase [5]. Planning the life cycle of a building (or building elements) becomes imperative to support the decision-making process, and this is demonstrated by the numerous studies in which optimization strategies, based on very different approaches, are developed in the literature, ranging from genetic algorithms to combined Life Cycle Assessment (LCA) and LCC procedures [6][7][8][9]. This allows an increased awareness of the burden of both the costs and environmental impacts of alternative technological and design solutions at every stage of the life cycle (from the raw materials supplied for the construction process to the demolition at the end of its useful life) [10][11][12][13][14].…”

Section: Life Cycle Cost Methodologymentioning

confidence: 99%

Energy Upgrading of Residential Building Stock: Use of Life Cycle Cost Analysis to Assess Interventions on Social Housing in Italy

et al. 2019

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The debate on the relevance of the global sustainability (including energy, environmental, social, economic, and political aspects) of building stock is becoming increasingly important in Europe. In this context, special attention is placed on the refurbishment of existing buildings, in particular those characterized by significant volumes and poor energy performance. Directive 2012/27/EU introduced stringent constraints (often disregarded) for public administrations to ensure a minimum yearly renovation quota of its building stock. This study describes how Life Cycle Cost analysis (LCC) can be used as a tool to identify the “cost-optimal level” among different design solutions to improve the energy performance of existing buildings. With this aim, a social housing building located in the town of Pisa (Italy) was chosen as the case study, for which two alternative renovation designs were compared using the LCC methodology to identify the optimal solution. The two alternatives were characterized by the same energy performance—one was based on the demolition of the existing building and the construction of a new building (with a wooden frame structure, as proposed by the public company owner of the building), while the other was based on the renovation of the existing building. This study can provide useful information, especially for designers and public authorities, about the relevance of the economic issues related to the renovation of social housing in a Mediterranean climate.

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“…Retrofitting can enhance residents' well-being and building's energy efficiency (DellaValle et al, 2018). European directives encourage the EU countries to perform energy retrofits of their buildings (Monteiro et al, 2017). For example, Milan's and Lisbon's municipalities have performed pilot renovations of public housing estates with the help of the EU funded Sharing Cities project (Monteiro et al, 2017).…”

Section: Integrating Bim Into the Affordable Housing Policiesmentioning

confidence: 99%

BIM Dimensions and Application Areas for Enhancing Sustainability and Affordability of Affordable Housing: As a Key for Effective Housing Policies

Sertyeşilışık

Sertyesilisik²,

Çetin

et al. 2021

Period. Polytech. Arch.

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Affordable housing plays a key role in well-being and sustainable development. The energy efficiency and sustainability performance of these houses support environmental sustainability and reduce their operational cost and energy consumption. Furthermore, enhanced energy efficiency is a significant factor in affordable houses in the fight against fuel poverty. This paper underlines the importance of sustainable affordable houses for reduced life cycle costs and enhanced welfare and well-being of its residents. Based on an in-depth literature review, considering the entire life cycle of affordable houses, this paper aims to investigate usage of all BIM dimensions and their application areas for enhancing sustainability and affordability of affordable housing as a key for effective housing policies. The integrated usage of Building Information Modelling (BIM) and energy simulation software has the potential to add value to the affordable houses as this integration supports energy savings and enhanced sustainability performance throughout the building's life-cycle. This paper highlights BIM’s usage for energy and facility management. Furthermore, this paper emphasises the importance of the policies for effective solutions to the housing problem and recommends holistic policies based on a systematic and interdisciplinary approach to the housing problem. This paper highlights the political economy of affordable housing policies and suggests affordable housing policies request usage of BIM throughout the entire life cycle of affordable houses.

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Addressing the challenges of public housing retrofits

Cited by 32 publications

References 9 publications

Social housing to nZEB - Portuguese context

Social housing to nZEB - Portuguese context

Energy Upgrading of Residential Building Stock: Use of Life Cycle Cost Analysis to Assess Interventions on Social Housing in Italy

BIM Dimensions and Application Areas for Enhancing Sustainability and Affordability of Affordable Housing: As a Key for Effective Housing Policies

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