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Mjörnell, K. (2020). The Role of Trans-Disciplinary Research in Sustainable Renovation. Journal of Management and Sustainability, 10
Åpne denne publikasjonen i ny fane eller vindu >>The Role of Trans-Disciplinary Research in Sustainable Renovation
2020 (engelsk)Inngår i: Journal of Management and Sustainability, ISSN 1925-4725, Vol. 10Artikkel i tidsskrift (Fagfellevurdert) Epub ahead of print
Abstract [en]

The paper discusses the role of trans-disciplinary research networks tackling the challenges of sustainablerenovation such as; environmental impact of substitute building materials and waste, relocation of tenants, lackof skilled labor, rent increase due to high renovation costs, and provides a detailed perspective on the effects interms of both new forms of collaboration and research results obtained by the researchers and practitionerswithin the network. The research network Sustainable Integrated Renovation SIRen has become a platform forresearchers and actors such as building owners, housing companies, facility managers, contractors, consultants,architects, building conservationists, authorities and tenants’ organisations to meet and work together ontechnical, environmental, economic, social and cultural historical aspects on renovation of buildings, as well asto identify and discuss new challenges. A multi-aspect process covering all aspects that must be considered bythe various actors during different stages of the renovation process has been developed and implemented in four‘Living Labs’ in real renovation projects. This involved using new modes of work in early stages to place thefocus on sustainability aspects and work on new dialogue methods and using methods to evaluate the variousrenovation options based on technical, environmental, economic, social and cultural historical perspectives.

Emneord
sustainable renovation, trans-disciplinary research environment, collaboration arena, multi-aspect
HSV kategori
Identifikatorer
urn:nbn:se:ri:diva-42142 (URN)10.5539/jms.v10n1p1 (DOI)
Tilgjengelig fra: 2019-12-16 Laget: 2019-12-16 Sist oppdatert: 2020-01-28bibliografisk kontrollert
(2019). Hållbar renoveringur ett helhetsperspektiv: En antologi från forskningsmiljön SIRen.
Åpne denne publikasjonen i ny fane eller vindu >>Hållbar renoveringur ett helhetsperspektiv: En antologi från forskningsmiljön SIRen
Vise andre…
2019 (svensk)Rapport (Annet vitenskapelig)
Abstract [sv]

Innehållsförteckning:

- Förord  av Madeleine Nobs, NCC

- Innehållsförteckning

- Tvärdisciplinär forskning möjliggör hållbar integrerad renovering av Kristina Mjörnell, RISE och Lunds Universitet

- SIRens-process för hållbar renovering med uppföljning av Petter Wallentén, Lunds Universitet, Kristina Mjörnell, RISE och Lunds Universitet

- Praktisk tillämpning av SIRens renoveringsprocess av Sofia Meurk, Omreda AB

- Varsam energieffektiv renovering – Tjärna ängar Borlänge av Jonn Are Myhren, Högskolan Dalarna, Martin Bergdahl, Högskolan Dalarna

- Sociala perspektiv på termisk komfort vid renovering av Tjärna Ängar av Annette Henning, Högskolan Dalarna, Jonn Are Myhren, Högskolan Dalarna, Maria Wallinder, Högskolan Dalarna och Linköpings universitet

- Från omfattande till varsam renovering av Paula Femenías, Chalmers Tekniska högskola, Sara Hamon, Familjebostäder, Jospehina Wilson, Familjebostäder, Per-Henrik Hartman Familjebostäder, Kristina Mjörnell, RISE och Lunds Universitet

- Beslutsfattande i tidiga skeden vid renovering av skolbyggnad av Karin Farsäter, Lunds Universitet, Stefan Olander, Lunds Universitet

- Lyckad renovering av miljonprogramsområde i Munkedal  av Anna Rudhag, Rotpartner

- Kunskapslyft renovering av Liane Thuvander, Chalmers Tekniska Högskola, Paula Femenías, Chalmers Tekniska Högskola, Fredrik Olsson, Rotpartner, Angelica Starke, Rotpartner

- ”Örat mot marken” Kartbaserad metodik för boendeinflytande i stadsutveckling av Liane Thuvander, Chalmers Tekniska Högskola, Jenny Stenberg, Chalmers Tekniska Högskola, Alfredo Torrez, Hyresgästföreningen, Kim Weinehammar, Hyresgästföreningen, Jesper Bryngelsson, Hyresgästföreningen

- Hyresgästsamråd vid renovering – fyra dilemman av Jenny Stenberg, Chalmers Tekniska Högskola

- Kulturvärden och hållbar renovering av Petra Eriksson, Uppsala universitet, Campus Gotland, Anna Donarelli, Riksantikvarieämbetet, Therese Sonehag, Riksantikvarieämbetet

- Hållbar energieffektivisering av historiska trä- och stenbyggnader med hampa-kalk av Paulien Strandberg-de Bruijn, Lunds Universitet, Kristin Balksten, Uppsala universitet Campus Gotland, Anna Donarelli, Riksantikvarieämbetet

- Superisoleringsmaterial – hur kan de användas vid renovering? av Pär Johansson, Chalmers tekniska högskola, Petra Eriksson, Uppsala Universitet,Paula Wahlgren, Chalmers tekniska högskola

- Kulturvärden i planeringsprocessen - kulturmiljöprogram som kunskapsunderlag av Sanja Peter, Göteborgs stad

- Varför är det så ont om Q? av Jennie Sjöholm, Luleå Tekniska Universitet, Kristina L Nilsson, Luleå Tekniska Universitet

- Installation av FTX – ett sätt att få lägre energianvändning och bättre innemiljö  av Dennis Johansson, Lunds Universitet, Akram Abdul Hamid, Lunds Universitet, Hans Bagge, Lunds Universitet, Jan Kristoffersson, Sustainable Innovation

- Mäta resursförbrukning under ombyggnad  av Jan Bröchner, Chalmers Tekniska Högskola, Ahmet Anil Sezer, Chalmers Tekniska Högskola

- Relining eller rörbyte  av Folke Björk, Kungliga Tekniska Högskolan, Parastou Kharazmi, Kungliga Tekniska Högskolan, Tord af Klintberg, Kungliga Tekniska Högskolan

- Vad står det i lagar och regler om renovering?  av Elisabeth Helsing, RISE

Publisher
s. 148
Serie
SIRen rapport, ISSN 0349-4950 ; 2019:02
HSV kategori
Identifikatorer
urn:nbn:se:ri:diva-41069 (URN)978-91-88722-65-2 (ISBN)
Merknad

Antologin är utgiven med stöd av Formas.ISRN LUTVDG/TVBH--19/3070—SE

Tilgjengelig fra: 2019-12-10 Laget: 2019-12-10 Sist oppdatert: 2019-12-10
Mjörnell, K. & Olsson, L. (2019). Moisture safety of wooden buildings – design, construction and operation. Journal of Sustainable Architecture and Civil Engineering, 24(1), 29-35
Åpne denne publikasjonen i ny fane eller vindu >>Moisture safety of wooden buildings – design, construction and operation
2019 (engelsk)Inngår i: Journal of Sustainable Architecture and Civil Engineering, ISSN 2029-9990, Vol. 24, nr 1, s. 29-35Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

During the last decade, building in wood has increased, mainly due to environmental awareness and targets to decrease the carbon footprint originated from the production of building materials. New technologies such as CLT (cross laminated timber) have accelerated the construction of multi-story wooden buildings. The CLT structure has been used both for housing and offices. Due to the extensive size of the buildings and relatively fast assembly of the buildings, weather protection has not always been used. It is commonly known that building materials sensitive to moisture need to be protected against high moisture conditions and water during construction. If this is not done, there is an increased risk of microbial growth which can result in health problems for future users of the building, extensive costs for the remediation and exchange of materials, but also lack of trust in the construction industry. There are disagreements between the building industry and researchers how sensitive wooden buildings are to exposure to high moisture levels and water during storage at sites and construction. Based on results from several research projects studying moisture conditions both in the laboratory and in the field, recommendations for procurement, storage and handling of wood during construction to assure moisture safety are suggested in this paper.

sted, utgiver, år, opplag, sider
Kauno Technologijos Universitetas, 2019
Emneord
CLT, Guidance, Massive wooden buildings, Moisture safety, Mould growth
HSV kategori
Identifikatorer
urn:nbn:se:ri:diva-39928 (URN)10.5755/j01.sace.24.1.22341 (DOI)2-s2.0-85071775890 (Scopus ID)
Tilgjengelig fra: 2019-09-19 Laget: 2019-09-19 Sist oppdatert: 2019-09-19bibliografisk kontrollert
Mjörnell, K., Femenías, P. & Annadotter, K. (2019). Renovation Strategies for Multi-Residential Buildings from the Record Years in Sweden—Profit-Driven or Socioeconomically Responsible?. Sustainability: Science, Practice, & Policy, 11, Article ID 6988.
Åpne denne publikasjonen i ny fane eller vindu >>Renovation Strategies for Multi-Residential Buildings from the Record Years in Sweden—Profit-Driven or Socioeconomically Responsible?
2019 (engelsk)Inngår i: Sustainability: Science, Practice, & Policy, ISSN 1548-7733, E-ISSN 1548-7733, Vol. 11, artikkel-id 6988Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

An important part of the multi-family housing stock in Sweden was built during the recordyears 1961–1975 and is in need of extensive renovation to be modernized. The stock is also at the center of political discussion of how to sustain ‘good housing for all’, especially in the rental sector. These renovation needs coincide with present energy targets and provides an opportunity to combine renovation with energy eciency measures. Common for many of these buildings are that neglected maintenance has led to technical shortcomings, such as high energy use and low thermal comfort due to bad insulation, unsatisfactory air tightness and leaky windows, inecient heating systems and insucient ventilation, and moisture damage due to leaking building envelope and leaking pipes. However, the people living in these buildings are not willing to or cannot afford to pay the higher rents that extensive renovations would entail. Earlier research has highlighted the broader societal problem of energy renovations, but also that of housing companies’ priority of measures with short paybacktimes, and those that give the possibility to raise rents. However, recent observations indicated a tendency towards more holistic approaches to housing renovation, and this study was initiated to investigate how public and private housing companies deal with renovation levels, rent increases and related social problems. The main conclusions are that sustainability and social responsibility a removing up on agendas in the public sector, but also, apparently, in the renovations strategies among the private companies. What is also seen is a trend moving from extensive total renovations to more tenant-adapted and step-by-step renovations. Renovation options which do not entail such large rentincreases are increasingly being seen. Implications are that housing owners favor gentle renovation with reasonable rent increases of 10%–20%, which at the same time, may be a drawback for reaching energy eciency targets.

sted, utgiver, år, opplag, sider
MDPI, 2019
Emneord
sustainable; renovation; multi-residential buildings; aordable housing
HSV kategori
Identifikatorer
urn:nbn:se:ri:diva-40949 (URN)10.3390/su11246988 (DOI)
Tilgjengelig fra: 2019-12-10 Laget: 2019-12-10 Sist oppdatert: 2019-12-10bibliografisk kontrollert
Mjörnell, K., Johansson, D. & Bagge, H. (2019). The Effect of High Occupancy Density on IAQ, Moisture Conditions and Energy Use in Apartments. Energies, 12(23), Article ID 4454.
Åpne denne publikasjonen i ny fane eller vindu >>The Effect of High Occupancy Density on IAQ, Moisture Conditions and Energy Use in Apartments
2019 (engelsk)Inngår i: Energies, ISSN 1996-1073, E-ISSN 1996-1073, Vol. 12, nr 23, artikkel-id 4454Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Apartments built in Sweden during the record years 1961–1975 with the aim to remedy thehousing shortage and abolish poor standards, were designed for a normal-sized family of 2–4 persons.The mechanical ventilation system, if existing, was primarily designed to ensure an air exchange inthe apartment according to Swedish building regulations. During the last few years, the number ofovercrowded apartments has increased due to housing shortage in general but also due to migration.Another aspect is that the ventilation in many apartments built during the record years is alreadyinsucient at normal occupant load. The question is how doubling or tripling the number ofoccupants and thus, the moisture load will aect the risk of bad air quality and moisture damage.To find out, simulations were made to estimate whether it is possible to obtain sucient air qualityand low risk of moisture damage by only increasing the ventilation rates in existing systems orintroducing new ventilation systems with and without heat recovery and what the consequencewould be in terms of the additional energy demand. Measurements from earlier studies of CO2 andmoisture supply in Swedish apartment buildings were used as input data.

Emneord
occupancy density; moisture conditions; energy use; indoor air quality; ventilation rate
HSV kategori
Identifikatorer
urn:nbn:se:ri:diva-40853 (URN)10.3390/en12234454 (DOI)2-s2.0-85076137008 (Scopus ID)
Merknad

(This article belongs to the Special Issue Energy and Technical Building Systems - Scientific and Technological Advances)

Tilgjengelig fra: 2019-11-22 Laget: 2019-11-22 Sist oppdatert: 2020-02-07bibliografisk kontrollert
von Platten, J., Holmberg, C., Mangold, M., Johansson, T. & Mjörnell, K. (2019). The renewing of Energy Performance Certificates—Reaching comparability between decade-apart energy records. Applied Energy, 255, Article ID 113902.
Åpne denne publikasjonen i ny fane eller vindu >>The renewing of Energy Performance Certificates—Reaching comparability between decade-apart energy records
Vise andre…
2019 (engelsk)Inngår i: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 255, artikkel-id 113902Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Energy Performance Certificates are currently one of the most extensive data sources about the energy performance of the EUs building stock and consequently provide support for researchers and policy makers in energy regulation. As Energy Performance Certificates are being renewed, there are new possibilities to study energy performance development over time and to evaluate the building-specific effect of energy policies and measures. This paper aims to explore this possibility. In Sweden, owners of multifamily buildings had to obtain their first Energy Performance Certificate no later than the end of 2008, and with a period of validity of 10 years many owners have now obtained a second Energy Performance Certificate for their building(s). This enables unprecedented quantitative, building-specific evaluations of the change in energy performance over time. However, comparability between old and new Energy Performance Certificates must be assured. This study develops a novel three-step method to attain comparability between old and renewed Energy Performance Certificates. Results show that while many pairs of Energy Performance Certificates were considered comparable, procedural changes in methods for determining heated floor area in Swedish Energy Performance Certificates caused an overestimation of energy performance improvement of approximately 7 kWh/m2 per building which had to be corrected for. The results of this paper indicate that old and renewed Energy Performance Certificates can be utilised to successfully map development of energy performance and enable evaluation of the impact on energy performance from policies and measures that have been carried out between the two points of audit. © 2019 The Authors

sted, utgiver, år, opplag, sider
Elsevier Ltd, 2019
Emneord
Building stock, Energy efficiency, Energy Performance Certificate, Evidence-based policy, Long-Term Renovation Strategy, Renovation, Buildings, Energy policy, Building stocks, Energy performance, Evidence-based
HSV kategori
Identifikatorer
urn:nbn:se:ri:diva-39972 (URN)10.1016/j.apenergy.2019.113902 (DOI)2-s2.0-85072216520 (Scopus ID)
Merknad

Funding details: Svenska Forskningsrådet Formas, 2017-01449; Funding text 1: The authors would like to thank the Swedish authorities Boverket and Energimyndigheten for their collaborative approach to providing data and utilising the works of this paper in the update of the Swedish Long-Term Renovation Strategy. This work was supported by The Swedish Research Council for Environment, Agricultural Sciences and Spatial Planning (Formas) [grant number 2017-01449 ] within the project National Building-Specific Information (NBI). The authors have no conflicts of interest to declare. Appendix A . Tables A.1–A.4 Energy performance Energy performance is the yearly, temperature corrected, and area-normalised energy used for heating, domestic hot water, and building electricity for lighting and ventilation. Domestic electricity use is not included.

Tilgjengelig fra: 2019-10-09 Laget: 2019-10-09 Sist oppdatert: 2020-01-31bibliografisk kontrollert
Mangold, M., Mjörnell, K., Durgun, Ö. & Johansson, T. (2018). Fastighetsägares förutsättningar för renovering av sina byggnadsbestånd från miljonprogramstiden. Bygg&Teknik, 2
Åpne denne publikasjonen i ny fane eller vindu >>Fastighetsägares förutsättningar för renovering av sina byggnadsbestånd från miljonprogramstiden
2018 (svensk)Inngår i: Bygg&Teknik, ISSN 0281-658X, Vol. 2Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm)) Published
Abstract [sv]

Byggsektorn står inför ett stort renoveringsbehov. Byggnader från miljonprogramstiden har nått en ålder då många olika byggnadsdelar når sin förväntade livslängd. Detta renoveringsbehov är inte jämnt fördelat bland Sveriges fastighetsägare. Det stora flertalet av de ännu ej renoverade byggnaderna från miljonprogramstiden ägs av fastighetsbolag knutna till SABO, men det finns även många privata fastighetsägare och bostadsrättsföreningar som har ett eftersläpande renoveringsbehov eller som har renoverat men fortfarande har en hög energianvändning och alltså troligtvis inte genomfört nödvändiga energieffektiviseringsåtgärder. Det finns också olika förutsättningar för att göra de investeringar som krävs, vilket beror på företagens soliditet, fastigheternas värde och möjligheten att få lån, utrymme för hyresökning etc. Detta gör att renoveringstakten inte kommer att täcka renoveringsbehovet och att vissa delar av fastighetsbeståndet kommer att vara mer eftersatt.

Emneord
Fastighetsägare, renovering, energianvändning, hyresökning, social hållbarhet
HSV kategori
Identifikatorer
urn:nbn:se:ri:diva-36095 (URN)
Prosjekter
Nationell Byggnadsspecifik Information
Forskningsfinansiär
Swedish Research Council Formas
Tilgjengelig fra: 2018-11-09 Laget: 2018-11-09 Sist oppdatert: 2019-06-27bibliografisk kontrollert
Höjer, M. & Mjörnell, K. (2018). Measures and Steps for More Efficient Use of Buildings. Sustainability, 10(6), Article ID 1949.
Åpne denne publikasjonen i ny fane eller vindu >>Measures and Steps for More Efficient Use of Buildings
2018 (engelsk)Inngår i: Sustainability, ISSN 20711050, Vol. 10, nr 6, artikkel-id 1949Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

As urbanization continues and more people move into cities and urban areas, pressure on availablelandfornewconstructionswillcontinuetoincrease. Thissituationconstitutesanincentiveto reviewtheneedforinteriorspaceandusesofexistingbuildings. Agreatdealcanbegainedfromusing existingbuildingsmoreefficientlyinsteadofconstructingnewones: Reducedresourceusageduring construction(investments,naturalresources,andenergy),operation,andmaintenance;moreactivityper squaremeterofbuildingscreatesagreaterbasisforpublictransportandotherservices;moreintensive useofbuildingscreatesamorevibrantcitywithoutbuildingonvirginland. Theaimofthispaperisto initiateadiscussionregardinghowdigitalizationcanaffectthedemandandsupplyofinteriorspace in existing buildings and elaborate on how policy can support more resource-efficient uses of space. New activity-based resource measurements intended for use in buildings are proposed, and several principles that have the potential to decrease environmental impact through more efficient usage of space are outlined. Based on these ideas for encouraging the flexible use of building spaces that are facilitatedbydigitalizationandthenewmeasurementapproaches,afour-stepprincipleforconstruction isproposed: Thefirststepistoreducethedemandforspace,thesecondistointensifyusageofexisting space, the third is to reconstruct and adapt existing buildings to current needs, and the fourth is to constructnewbuildings. Urgingpolitical,municipal,construction,andreal-estatedecisionmakersto contemplatethisprinciple,particularlyinviewofthenewconditionsthatdigitalizationentails,willlead tomoresustainableconstructionand,inthelongterm,asustainablebuiltenvironment.

Emneord
resource use; energy use; interior space utilization; buildings; sharing; digitalizatio
HSV kategori
Identifikatorer
urn:nbn:se:ri:diva-33929 (URN)10.3390/su10061949 (DOI)2-s2.0-85048257456 (Scopus ID)
Tilgjengelig fra: 2018-06-11 Laget: 2018-06-11 Sist oppdatert: 2019-01-09
Femenías, P., Mjörnell, K. & Thuvander, L. (2018). Rethinking deep renovation: The perspective of rental housing in Sweden. Journal of Cleaner Production, 195, 1457-1467
Åpne denne publikasjonen i ny fane eller vindu >>Rethinking deep renovation: The perspective of rental housing in Sweden
2018 (engelsk)Inngår i: Journal of Cleaner Production, ISSN 0959-6526, E-ISSN 1879-1786, Vol. 195, s. 1457-1467Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

This study examines renovation strategies among owners of rental housing in Sweden in response to European energy policies that promote deep renovation as a means to reduce carbon emissions from residential buildings. Case studies of eleven housing companies, seven public and three private, were designed with the aim to examine housing owners’ attitudes and renovation strategies, and how policies and objectives for energy efficiency become incorporated into these attitudes and strategies. Results are illustrated in typologies that distinguish between renovation strategies with either a more commercial or a more societal focus and spanning between deep and partial renovation. The typologies can be used to discuss how different aspects influence renovation, and illustrates how strategies change over time. The study identifies a trend in which housing owners are increasingly relying on partial or over-time renovation. Cost is one important driver, but social responsibility toward tenants and in some cases the protection of cultural heritage are also found to be important. A distrust of fixed models for renovation was observed. The paper questions the concept of deep renovation and suggests instead partial and over-time renovation as a way forward toward sustainable renovation. Partial renovation can bring together energy efficiency with environmental, financial, social, and cultural objectives of housing management. If managed properly, over-time renovation can reduce the risk of an investment, and has the advantage of allowing future technological advancements in energy efficiency to be included in current planning.

Emneord
Sustainable renovation; Renovation process; Strategies; Energy efficiency; Housing owners; Multi-residential housing; Typologies
HSV kategori
Identifikatorer
urn:nbn:se:ri:diva-33227 (URN)10.1016/j.jclepro.2017.12.282 (DOI)2-s2.0-85040353123 (Scopus ID)
Forskningsfinansiär
Swedish Research Council Formas
Tilgjengelig fra: 2018-02-09 Laget: 2018-02-09 Sist oppdatert: 2018-12-20bibliografisk kontrollert
Ranhagen, U., Bogren, M., Mjörnell, K., Sandberg, J., Persson, A., Schylberg, K., . . . Lindh, H. (2017). Attraktiva livsmiljöer och flöden: åtta teman för planering av framtidens goda stad. Stockholm: Kungliga Vetenskapsakademien IVA
Åpne denne publikasjonen i ny fane eller vindu >>Attraktiva livsmiljöer och flöden: åtta teman för planering av framtidens goda stad
Vise andre…
2017 (svensk)Rapport (Annet (populærvitenskap, debatt, mm))
sted, utgiver, år, opplag, sider
Stockholm: Kungliga Vetenskapsakademien IVA, 2017. s. 72
Serie
IVA-M, ISSN 1102-8254 ; IVA-M486
HSV kategori
Identifikatorer
urn:nbn:se:ri:diva-32883 (URN)978-91-7082-960-4 (ISBN)
Merknad

IVA-projektet Framtidens goda stad

Tilgjengelig fra: 2017-12-19 Laget: 2017-12-19 Sist oppdatert: 2019-02-04bibliografisk kontrollert
Identifikatorer
ORCID-id: ORCID iD iconorcid.org/0000-0002-3863-0740
v. 2.35.9