1,720,970 research outputs found
The Add-ons strategy. Volumetric additions for deep energy renovation of existing buildings
No full textThe main European energy challenge mainly concerns the energy efficient renovation of the existing buildings stock, which counts for two third of the overall European energy consumptions; yet up until today, only 1,2% of existing buildings gets renovated every year. The actual investment gap in the deep renovation sector is due to the fact that consistent investments are required up-front and they are generally characterized by an excessively high degree of risk and long payback times.
The ambition is to define a comprehensive renovation methodology, where technology and society priorities meet, in the search for a new construction type, tool and trigger at the same time in the Energy Renovation of Existing Buildings
The main objective of the research presented in this volume consists in the validation of an integrated design methodology based upon the creation of additional volume on existing buildings (Add-Ons) intended as roof-top or aside extensions, enclosures, parasites or façade transformations. The Add-Ons are intended as the core and main instrument of an innovative strategy that has been proven able to overcome the actual barriers, increase the feasibility of energy renovation in the residential field and ultimately foster the building renovation market. Indeed, the research hypothesis is based on the assumption that an empowering synergy can be created between the old and the new, not only in structural, functional and architectural terms but also in economical and social terms. The research will test and prove the technical and economical feasibility of the Add-ons strategy for Deep Renovation through several design experiments carried in a series of case studies in different European contexts (Italy, Germany, Greece).
The validation by design helped defining a modular and adaptive approach that could directly express the internal programmatic need for transformation and contextually respond to the structural and energetic emergency of the existing building. The case study have shown that the beneficial effect of the Add-on depends on the existing market variance between the cost of construction and the real estate value as well as the energy prices and reduction potential. However, considering three different scenarios with different construction market trends, the Add-on strategy has proven to be effective in reducing the payback time to less then five years, thus being able to foster a concrete revolution in Deep renovation market and viability.
The highly replicable nature of the proposed methodology, the important impact on the market and the possibility of overcoming the existing restrictive social barriers highlight the innovation character of the proposal indicating the path towards an effective turn-around in the energy renovation of European buildings and cities, a step forward in defining a new paradigm of sustainability
Nachverdichtung im Bestand in energetisher oekonomisher und sozialer Symbiose
Full text linkEnergieeffizienz ist eine der Prioritäten der Europa 2020 Strategie sowohl für ein intelligentes, nachhaltiges und integratives Wachstum als auch für den Übergang zu einer ressourceneffizienten Ökonomie. Das Reduzieren des Energieverbrauchs bestehender Gebäude ist in diesem Zusammenhang eine zentrale Herausforderung, da er 40% des gesamten europäischen Energieverbrauchs ausmacht (und 36% der Treibhausgasemissionen) [COM (2012) Consultation Paper: „Financial Support for Energy Efficiency in Buildings“].
Im Bereich der energetischen Gebäudesanierung besteht kein Mangel an technischen Möglichkeiten. Sowohl innovative als auch bewährte Sanierungskonzepte stehen zur Verfügung. Einer der wichtigsten Hinderungsgründe für die nach wie vor viel zu geringe Sanierungsrate im Wohngebäudebestand ist die tatsächliche oder manchmal nur vermutete Unwirtschaftlichkeit. Die aktuelle Energiepreisentwicklung hat die Motivation zur energetischen Sanierung noch weiter gebremst. Standardisierte Wärmedämmung und vorgefertigte Lösungen sind nicht die effektiven und nachhaltigen Antworten, die wir suchen. Die Implementierung von Einzelmaßnahmen wie das Auftragen einer Isolationsschicht, das Ersetzen von Fenstern, das Verbessern von Instandhaltungsleistungen, das Nachrüsten von Beleuchtungsanlagen oder die Dämmung der Dachfläche bieten lediglich eine erste grundlegende Reduzierung des Energieverbrauchs, reicht jedoch nicht aus. Die beim Klimagipfel 2016 in Paris formulierten Ziele erfordern eine grundlegende Energiewende im Bauwese
LEARNING FROM INFORMALITY' APPROACH FOR SOCIO-ORIENTED AND SUSTAINABLE BUILT ENVIRONMENTS
No full textFrom the modernist period until now, architects and planners have moved toward the design processes according
to functionally oriented superimposed approaches. The current failure in terms of urban and architectural
conditions, especially considering peripheries within EU and US contexts, is mainly due to the rigid and fixed
character of the “functional city” or “Ford Society” city of the 20th century. As an opposite, a ‘Learning from
informality’ approach is suggested in this paper. Starting from a research and analysis from the current of the state
of art on informal settings and developments, it is possible to drive conclusions upon instruments that can be used
and applied to rehabilitate our cities and suburbs. Flexible and adaptable systems can better transform and evolve
together with the changes of the society that lives the urban spaces everyday and “New forms of social awareness
that emerge from slum collectives will be the germs of the future and the best hope for a properly ‘free world’” [1].
Informal and formal should become a combined way of designing a sustainable vision for the future, where urban
dwellers can actively modify and transform their environment. Looking at the developing countries, we can find
many research fields and cases to study informality in architecture in its various forms of “self-expression”. The
contrast between these areas of the world and the over-planned environment of Europe or America is significant
to understand the current relationship between architects and users; it’s time for bridging the gaps between
architectural design and social studies. Informal architecture conceived as an “architecture without architects” [2]
should become the starting point to change our approach to the design process into a bottom-up model engaged
by many rather than an imposed series of esthetic and supposedly functional choices made by few. Moreover, it is
important to engage an increasing number of policies to support also informal economy initiatives that could lead
to a progressive and active participation of a broader group of actors in the building process. The so-called
participative approach has shown its limitation and restrictions when applied in real practice. Through an analysis
of different research case studies worldwide, the paper set a series of principles and tools to be used as guide-lines
in current development to help professionals, architects and planners in their role of helping inhabitants to
become architects themselves, in a socio-oriented approach for a sustainable future. In short, learning from
informality to achieve a formally sustainable built environment is the operative suggestion of this research work
Deep energy renovation strategies: A real option approach for add-ons in a social housing case study
No full textIn this paper, a techno-economic evaluation method for deep renovation of buildings is introduced. We study the validation of an integrated design methodology based upon the creation of an additional volume on existing buildings (Add-Ons) intended as roof-top or aside extensions, enclosures, parasites or façade transformations. Energy price uncertainty is modeled through a mean-reverting stochastic process, which well fits the data for natural gas prices, and the proposed evaluation method is based on real-option theory, which is an advancement of standard cost-benefit analysis, to be employed whenever uncertainty has a significant impact on the investment option. The new method to evaluate the economic feasibility of the Add-ons strategy for Deep Energy Renovation is tested through design experiments on a real case study of social housing in Reggio Emilia (Italy)
Semplice, nuovo, giusto. Visita al quartiere Rosta Nuova
No full textQuesto agile libro è nato a cena, alcuni mesi fa.
Lì ho condiviso, come presidente dell’Ordine degli Architetti PPC di Reggio Emilia, la proposta di Elena Romani di un evento che rendesse evidente a tutti, architetti e non, le po- tenzialità di un quartiere come quello della Rosta Nuova. Sono nato ai margini del quartiere Rosta Nuova, la Rosta per tutti quelli della mia generazione.
Lì ho frequentato nell’anno di apertura la scuola comunale per l’infanzia Anna Frank, sperimentando tra i primi bambini reggiani le teorie pedagogiche di Loris Malaguzzi, oggi cele- brate e studiate in ogni parte del mondo.
Lì andavo a giocare da bambino o in biblioteca, dopo aver ascoltato tutte le raccomandazioni di mia madre, un lungo elenco di cose cui porre attenzione: la Rosta era, infatti, un quartiere ultrapopolare e non certo facile da frequentare socialmente.
Lì ho le basi della mia formazione e del mio modo di pensare l’architettura: certi ricordi, sempre legati a momenti partico- lari, rimangono impressi nella memoria come punti di riferimento indelebili
La strategia delle addizioni volumetriche per la riqualificazione dell’Edilizia Residenziale Sociale
No full textNel contesto della riqualificazione energetica dell’edilizia residenziale, la revisione degli involucri edilizi attraverso le addizioni volumetriche rappresenta una modalità di approccio incrementale rispetto al raggiungimento dei soli obiettivi di risparmio energetico e rinnovo formale contenuto nelle ipotesi di trasformazione del costruito esistente. Il contributo esamina tale possibilità come iter procedurale in grado di ridurre i tempi di ritorno degli investimenti, di soddisfare le esigenze dell’utenza e incrementare la qualità e l’appetibilità delle scelte tecniche. In questa prospettiva, le soluzioni tecnologiche sono studiate e valutate non come
soluzioni predefinite, ma come strumenti per un progetto di processo operativo e creativo, in grado di interpretare il futuro evolvere della nostra civiltà e del costruito
Domani
No full textDomani è il nome di una casa, una casa per il futuro, progettata dal Laboratorio di Architettura di Reggio Emilia (Andrea Rinaldi e Roberta Casarini), con gli ingegneri di Due Terzi (Elena Cattani e Marco Ruggieri) e vincitrice del Consulto ECOLUOGHI 2017/2018 - Case per un’abitare sostenibile, bandito dal Ministero dell’Ambiente della Tutela del Territorio e del Mare, Associazione Mecenate 90, Unioncamere. Il testo ne racconta l’idea, l’esperienza e le modalità di costruzione.
Partner per la costruzione di domani sono Costruire Leggero, Porcelanosa Grupo, Schüco, Alpac, Eubiq Europe, Knauf, Vanoncini ,Artemide, Fantoni, La Cividina, Maggioli.
Domani è una goccia nel deserto, ma il deserto è alle porte e tergiversare, pensare a corto raggio, è un modo di agire che conduce inesorabilmente alla fine
Climate Oriented Urban Design Il Comfort termico negli spazi urbani e per il risparmio energetico degli edifici
No full textLa configurazione volumetrica dei tessuti urbani e i materiali che ne costituiscono le superi ci esterne sono i principali fattori che influenzano il microclima delle città. Comprendere e soprattutto essere in grado di trasformare gli spazi urbani può contribuire a migliorare il comfort termico degli ambienti esterni ed interni ai nostri edifici. Questo contributo analizza il potenziale risparmio energetico contenuto nell’uso del verde e dei sistemi passivi nel ridisegno urbano, utilizzando la variazione di temperatura esterna come principale indicatore di comfort e proponendo una “inedita collaborazione” tra sistemi di simulazione ambientale, da quelli riferiti alle aree esterne ai modellatori dinamici per il calcolo energetico degli spazi abitativi con nati
La strategia del progetto ABRACADABRA per azzerare il consumo energetico e bilanciare i costi nella riqualificazione degli edifici esistenti The ABRACADABRA strategy to set the energy to zero and balance the cost in the deep renovation of existing buildings in: DEMOLITION OR RECONSTRUCTION? Colloqui.AT.e 2017
No full textEurope’s energy efficiency challenge in buildings mainly concerns the energy efficient refurbishment and investments in the existing building stock. Yet, today, only 1,2% of Europe’s existing buildings are renovated every year. The actual investment gap in the deep renovation sector is because high investments are required up-front and they are generally characterized by an excessively high degree
of the risk, by long payback times and by the “invisibility of the energy benefit”. It is, therefore, necessary to develop concerted and innovative actions. The EU project ABRACADABRA (“Assistant Buildings’ addition to Retrofit, Adopt, Cure And Develop the Actual Buildings up to zero energy, Activating a market for deep renovation”) aims at demonstrating to the key stakeholders and financial investors the appeal of a new renovation strategy based on volumetric Add-ons and Renewables (AdoRe) intended as one or as a combination of Assistant Building unit(s) that “adopt” the existing buildings to achieve nearly zero energy. The conception of new AdoRes aims at reducing the initial investment allocated for the deep renovation of the existing building creating an up-grading synergy between old and new. The ABRA strategy aims at implementing a precise densification policy to foster the investments in the deep renovation of the existing built environment. In this context, the project aims at fostering a legislative and market change accelerating the revolution towards nearly Zero Energy in the existing buildings and in the urban settings of the EU cities. The paper focuses on case studies in different geographical and climatic contexts, where different solutions are analyzed: from standard renovation up to the AdoRe strategy. All solutions are compared in terms of energy saving, non-energy benefits, and cost-effective analysis
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