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  • 1.
    Abdul Hamid, Akram
    et al.
    Lund University, Sweden.
    von Platten, Jenny
    RISE Research Institutes of Sweden, Samhällsbyggnad, Systemomställning och tjänsteinnovation. Lund University, Sweden.
    Mjörnell, Kristina
    RISE Research Institutes of Sweden. Lund University, Sweden.
    Johansson, Dennis
    Lund University, Sweden.
    Bagge, Hans
    Lund University, Sweden.
    Determining the Impact of High Residential Density on Indoor Environment, Energy Use, and Moisture Loads in Swedish Apartments-and Measures for Mitigation2021Inngår i: Sustainability, E-ISSN 2071-1050, Vol. 13, nr 10, artikkel-id 5446Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Recently, there has been an increase in apartments with a large number of inhabitants, i.e., high residential density. This is partly due to a housing shortage in general but also increased migration, particularly in suburbs of major cities. This paper specifies issues that might be caused by high residential density by investigating the technical parameters influenced in Swedish apartments that are likely to have high residential density. Interviews with 11 employees at housing companies were conducted to identify issues that might be caused by high residential density. Furthermore, simulations were conducted based on extreme conditions described in the interviews to determine the impact on the energy use, indoor environmental quality, and moisture loads. In addition, the impact of measures to mitigate the identified issues was determined. Measures such as demand-controlled ventilation, increase of a constant ventilation rate, and moisture buffering are shown to reduce the risk for thermal discomfort, mold growth, and diminished indoor air quality; while still achieving a lower energy use than in a normally occupied apartment. The results of this study can be used by authorities to formulate incentives and/or recommendations for housing owners to implement measures to ensure good indoor environmental quality for all, irrespective of residential density conditions.

    Fulltekst (pdf)
    fulltext
  • 2.
    Abdul Hamid, Akram
    et al.
    Lund University, Sweden.
    von Platten, Jenny
    RISE Research Institutes of Sweden, Samhällsbyggnad, Systemomställning och tjänsteinnovation. Lund University, Sweden.
    Mjörnell, Kristina
    RISE Research Institutes of Sweden, Säkerhet och transport. Lund University, Sweden.
    Johansson, Dennis
    Lund University, Sweden.
    Bagge, Hans
    Lund University, Sweden.
    Impact of high residential density on the building technology, HVAC systems, and indoor environment in Swedish apartments2020Inngår i: E3S Web of Conferences. Volyme 172, 2020., EDP Sciences , 2020, artikkel-id 09003Konferansepaper (Fagfellevurdert)
    Abstract [en]

    During the last few years, there has been an increased number of overcrowded apartments, due to increased migration but also housing shortage in general, particularly in the suburbs to major cities. The question is how the indoor environment in these apartments is affected by the high number of persons and how the problems related to high residential density can be overcome. This paper aims to specify the problem by investigating and analysing the technical parameters influenced by residential density in Swedish apartments built between 1965-1974. To map the situation, 11 interviews with employees at housing companies were conducted. Based on extreme conditions described in the interviews, simulations of the indoor climate and moisture risks at some vulnerable parts of constructions were made. Simulations were focused on moisture loads and CO2 concentrations as functions of residential density and ventilation rate. Finally, measures to combat problems associated to overcrowding are suggested. The aim is that the results should be used by authorities to formulate incentives and/or recommendations for housing companies to take actions to ensure a good indoor environment for all, irrespective of residential density conditions. © The Authors.

  • 3.
    Femenias, Paula
    et al.
    Chalmers University of Technology, Sweden.
    Gluch, Pernilla
    Chalmers University of Technology, Sweden.
    Mjörnell, Kristina
    RISE - Research Institutes of Sweden.
    Utmaningar vid planeringav hållbar bostadsförnyelse: - En studie av ett miljonprogramsområde2017Rapport (Annet vitenskapelig)
    Fulltekst (pdf)
    Utmaningar vid planering
  • 4. Femenias, Paula
    et al.
    Thuvander, Liane
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Lane, Anna-Lena
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Koll på hållbar renovering2015Inngår i: Bygg & teknik, Vol. 107, nr 2, s. 30-34Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
    Fulltekst (pdf)
    fulltext
  • 5.
    Femenías, Paula
    et al.
    Chalmers University of Technology, Sweden.
    Mjörnell, Kristina
    RISE - Research Institutes of Sweden, Samhällsbyggnad, Byggteknik. Lund University, Sweden.
    Thuvander, Liane
    Chalmers University of Technology, Sweden.
    Rethinking deep renovation: The perspective of rental housing in Sweden2018Inngår i: Journal of Cleaner Production, ISSN 0959-6526, E-ISSN 1879-1786, Vol. 195, s. 1457-1467Artikkel i tidsskrift (Fagfellevurdert)
    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.

  • 6.
    Francart, Nicolas
    et al.
    KTH Royal Institute of Technology, Sweden.
    Höjer, Mattias
    KTH Royal Institute of Technology, Sweden.
    Mjörnell, Kristina
    RISE Research Institutes of Sweden, Säkerhet och transport. Lund University, Sweden.
    Sargon Orahim, Allanmikel
    RISE Research Institutes of Sweden, Samhällsbyggnad, Systemomställning och tjänsteinnovation.
    von Platten, Jenny
    RISE Research Institutes of Sweden, Samhällsbyggnad, Systemomställning och tjänsteinnovation. Lund University, Sweden.
    Malmqvist, Tove
    KTH Royal Institute of Technology, Sweden.
    Sharing indoor space: stakeholders’ perspectives and energy metrics2020Inngår i: Buildings and Cities, Vol. 1, nr 1, s. 70-85Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The sharing of indoor space can improve space and energy efficiency. The drivers and barriers to space-sharing initiatives are investigated from the perspectives of building users and building sector practitioners, based on interviews and a workshop. The role of energy performance metrics in promoting space efficiency is further analysed through a literature review. From the users’ perspective, space sharing can be understood through the interplay between tangible aspects (e.g. concrete benefits derived from sharing), organisational aspects (e.g. common decision processes and conflict resolution) and social aspects (e.g. group identity and consensus on appropriate behaviours). From the perspective of architects and property owners, shareable spaces require features such as flexibility and multifunctionality. The design of such spaces is limited by regulatory issues (e.g. building regulations poorly accommodate shared facilities) and business-related issues. One such issue is that building performance metrics normalised based on floor area do not incentivise the efficient use of space. A review of complementary metrics is provided, covering parameters such as number of users, layout, time of use, etc. Each metric serves a particular purpose; therefore, a set of complementary metrics can be used to support decisions at different phases of the building’s life cycle.

    Practice relevanceImproving space efficiency (e.g. by sharing indoor space) is a key strategy to meet simultaneously the future demand for facilities in cities and fulfil environmental objectives such as a reduction of climate change impact in the building sector. A clearer understanding of the specificities of space sharing is provided from the perspectives of building users and practitioners. This will assist practitioners to understand the needs of other stakeholders. Regulatory and business-related barriers to space-sharing initiatives are highlighted as a first step towards overcoming these barriers. Guidance is provided on complementary energy performance metrics appropriate for space efficiency. These metrics can be used to support various decisions during the different stages of a building’s life cycle.

    Fulltekst (pdf)
    fulltext
  • 7.
    Höjer, Mattias
    et al.
    KTH Royal Institute of Technology, Sweden.
    Mjörnell, Kristina
    RISE - Research Institutes of Sweden (2017-2019), Samhällsbyggnad, Byggteknik.
    Measures and Steps for More Efficient Use of Buildings2018Inngår i: Sustainability, ISSN 20711050, Vol. 10, nr 6, artikkel-id 1949Artikkel i tidsskrift (Fagfellevurdert)
    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.

    Fulltekst (pdf)
    fulltext
  • 8.
    Höjer, Mattias
    et al.
    KTH Royal Institute of Technology, Sweden.
    Mjörnell, Kristina
    RISE - Research Institutes of Sweden (2017-2019).
    Andersson, Olof
    Fastighets AB Trianon, Sweden.
    Kallstenius, Åsa
    Kod Arkitekter, Sweden.
    Lennebo, Reinhold
    Fastighetsägarna, Sweden.
    Minoz, Åsa
    ModigMinoz, Sweden.
    Renander, Lisa
    Tech Farm, Sweden.
    Här är fyra smarta alternativ till att bygga nytt2017Inngår i: Dagens samhälle, artikkel-id 29 majArtikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
    Abstract [sv]

    Vi behöver 710 000 nya bostäder inom en tioårsperiod, men även behovet av andra fastigheter ökar när befolkningen växer. Det är hög tid att lyfta alternativ till att bygga nytt. Här presenteras en fyrstegsprincip för mer effektivt användande av ytor, skriver forskare, fastighetsägare och arkitekter med flera tillsammans.

    https://www.dagenssamhalle.se/debatt/har-ar-fyra-smarta-alternativ-till-att-bygga-nytt-17320

  • 9.
    Johansson, Pernilla
    et al.
    RISE Research Institutes of Sweden, Samhällsbyggnad, Bygg och fastighet.
    Bok, Gunilla
    RISE Research Institutes of Sweden, Samhällsbyggnad, Bygg och fastighet.
    Lång, Lukas
    RISE Research Institutes of Sweden, Samhällsbyggnad, Bygg och fastighet.
    Mjörnell, Kristina
    RISE Research Institutes of Sweden, Samhällsbyggnad.
    Kritiskt fukttillstånd för mögelpåväxt på byggnadsmaterial2022Rapport (Annet vitenskapelig)
    Abstract [en]

    Critical moisture level for mould growth on building materials. Mould can grow on building materials in 75-100% relative humidity (RH) at room temperature. How sensitive materials are to mould growth varies. One way to describe this sensitivity is the critical moisture level, RHcrit, the lowest RH at which mould can grow on a material. The critical moisture level for different material groups was proposed based on the current research situation in 2005, in the report ” Microbiological growth on building materials – critical moisture levels. State of the art” (SP Rapport 2005: 11). Based on new research results, these values are no longer valid. This report provides a general overview of the conditions for mould growth on building materials, focusing on the critical moisture level and the new research results. The main conclusion is that RHcrit is a product-specific property. It is impossible to estimate RHcrit for a product based on that it belongs to a group of materials, such as plaster or wood-based boards. Instead, RHcrit must be determined by laboratory tests for each product. The report also discusses how the results of a laboratory test can be used to prevent mould growth in buildings with known RF and temperature and the benefits of using RHcrit instead of traditional mould resistance tests.

    Fulltekst (pdf)
    fulltext
  • 10.
    Johansson, Pernilla
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Biopolymerer som transportskydd för byggnadsmaterial. Förstudie2007Rapport (Fagfellevurdert)
    Fulltekst (pdf)
    FULLTEXT01
  • 11.
    Johansson, Pernilla
    et al.
    RISE - Research Institutes of Sweden (2017-2019), Samhällsbyggnad, Byggteknik.
    Mjörnell, Kristina
    RISE - Research Institutes of Sweden (2017-2019).
    Arfvidsson, J.
    Lund University, Sweden.
    Examples of characteristics of wood that affect mould growth: a meta-analysis2017Inngår i: European Journal of Wood and Wood Products, ISSN 0018-3768, E-ISSN 1436-736X, Vol. 75, nr 4, s. 603-613Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Building materials differ in their susceptibility to mould growth. Wood is a material often considered to have a low mould resistance. However, wood is not a homogenous material and different characteristics of the material are expected to have an impact on mould growth. In this paper, it was shown that wood species (pine or spruce), sawing pattern (centre-board or side-board) and surface structure (planed or sawn) affected mould growth. In addition, it was indicated that the susceptibility cannot be described by one single parameter, but also depends on other parameters. It is therefore difficult to estimate the susceptibility of wood in general. These conclusions were drawn from a meta-analysis, using data from five separate, previously performed laboratory studies conducted at 90% relative humidity and 22 °C, and from a laboratory study performed at 95% RH and 22 °C. © 2016 Springer-Verlag Berlin Heidelberg

  • 12.
    Johansson, Pernilla
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Samuelson, Ingemar
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi.
    Ekstrand-Tobin, Annika
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Sikander, Eva
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Microbial Growth on Building Materials - Critical Moisture Levels2013Konferansepaper (Fagfellevurdert)
  • 13.
    Johansson, Tim
    et al.
    RISE Research Institutes of Sweden, Samhällsbyggnad, Systemomställning och tjänsteinnovation.
    Mjörnell, Kristina
    RISE Research Institutes of Sweden.
    Data-driven prediction of PVC flooring in the Swedish building stock2023Rapport (Annet vitenskapelig)
    Abstract [en]

    PVC flooring accounts for a significant share of PVC use in the construction sector and has great potential for recycling. Nevertheless, the actual recycling rate of PVC flooring spillage in 2018 was less than 20%, according to the national system for the separate collection and recycling of material residues from the installation of PVC floorings, developed by flooring manufacturer Tarkett AB and now used by all manufacturers in the flooring industry. To improve the sorting and recycling process of old PVC flooring it is necessary to identify where the material is located and evaluate its recycling potential. Such information is crucial for demolition waste recycling companies and flooring manufacturers to improve recycling practices for PVC flooring and then use the recycled PVC materials in the new flooring production. The challenge is to find out in which buildings there is PVC flooring and when it was installed which will indicate when it is planned to be dismantled and replaced. Since the PVC flooring manufactures do not keep track on where their products are laid such information is lacking. The best source of information that was made available for the researchers appeared to be the public building owners´ maintenance plans. Therefore, it was decided to focus on the presence of PVC flooring in public preschools as an example. By combining data from maintenance plans with national building registers, the PVC flooring in the Swedish preschools have been forecasted. The project results show an example how limited data sources can be used to predict presence of materials in larger stocks and is therefore expected to contribute to a climate-neutral supply chain with recycled PVC flooring. Based on the results of this study, dialogue, recommendations and guidelines can be developed for the flooring industry, the waste and recycling industry and the Swedish real estate and construction sector.

    Fulltekst (pdf)
    fulltext
  • 14.
    Kurkinen, Kimmo
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Hansson, Mattias
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP – Sveriges Provnings- och Forskningsinstitut.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Sammanfattning av tidigare mätningar av fukt- och temperaturförhållanden för trä i klimatskärmen2009Rapport (Fagfellevurdert)
    Fulltekst (pdf)
    FULLTEXT01
  • 15.
    Kylefors, Martin
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Wendin, Karin
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Den äldre befolkningen en tillgång2013Inngår i: Skånska Dagbladet, nr 2013-07-03Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
  • 16.
    Malaga, Katarina
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
    Mjörnell, Kristina
    Ställ tekniska egenskapskrav och använd deklarationerna2014Inngår i: Energi & Miljö, nr 4Artikkel i tidsskrift (Annet vitenskapelig)
  • 17.
    Malmgren, Linus
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut.
    Elfborg, Stefan
    RISE., SP – Sveriges Tekniska Forskningsinstitut.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut.
    Development of a decision support tool for sustainable renovation – a case study2016Inngår i: Structural Survey, ISSN 0263-080X, E-ISSN 1758-6844, Vol. 34, nr 1, s. 3-11Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Purpose – Building owners are encouraged to reduce the energy consumption both in order to contribute to national energy saving goals and to reduce the costs of heating and operation of buildings. However, it is important to pursue the most optimal strategy to achieve cost-effective energy use while maintaining other values. Building managers often do not have the time or expertise to make a proper evaluation of the available options, hence there is a need for practical methodologies for evaluation of renovation alternatives. The paper aims to discuss these issues. Design/methodology/approach – Renobuild, a systematic approach for evaluating renovation alternatives based on sustainability criteria are under development. It aims to compare renovation alternatives from an environmental, economic and social perspective. To verify the methodology it has been used to evaluate different renovation alternatives for a multi-family apartment building in Sweden. Findings – The study showed that building managers are provided with a clear comparison between different renovation alternatives from a sustainability perspective. Using Renobuild or similar methodologies may highlight renovation measures which marginally increases the investments, but can lead to significant environmental and social benefits. Research limitations/implications – So far the methodology has only been tested on a limited number of buildings in Sweden. More buildings will need to be tested for further verification. Originality/value – Not many tools or methodologies exist which address several aspects of sustainability. Renobuild is a practical methodology that can help building owners to increase focus on sustainability.

  • 18.
    Malmgren, Linus
    et al.
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ). Lund University, Sweden.
    Application of a Decision Support Tool in Three Renovation Projects2015Inngår i: Sustainability, E-ISSN 2071-1050, Vol. 7, nr 9, s. 12521-12538Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Building owners are encouraged to reduce energy use in order to both contribute to national energy-saving goals and reduce the costs of heating and operation. It is important to choose the most optimal renovation measures available so as to achieve cost-effective energy use while maintaining excellent indoor environments, without sacrificing architectural quality or negatively affecting the environment. Building owners and managers often have neither the time nor the expertise required to properly evaluate the available renovation options before making a final decision. Renovation measures are often calculated to repay investments in a short time, rather than taking into account life-cycle costs (LCC), despite the fact that a thoughtful, comprehensive renovation is often more cost-effective in the long run. This paper presents a systematic approach for evaluating different renovation alternatives based on a number of sustainability criteria. The methodology has been verified using three multi-family apartment buildings in Sweden. The benefit of using the proposed methodology is made clear through a comparison between the different renovation alternatives from a sustainability perspective, and will hopefully serve as encouragement to choose renovation measures which involve marginally increased investments but lead to significant environmental and social benefits in the long-term.

  • 19.
    Mangold, Mikael
    et al.
    RISE Research Institutes of Sweden, Samhällsbyggnad, Systemomställning och tjänsteinnovation.
    Mjörnell, Kristina
    RISE Research Institutes of Sweden, Samhällsbyggnad. Lund University, Sweden.
    Swedish public and private housing companies’ access to the capital market for financing energy renovation2023Inngår i: Journal of Housing and the Built Environment, ISSN 1566-4910, E-ISSN 1573-7772, Vol. 38, s. 673-697Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The financing of energy efficiency measures and renovations is key to reaching energy efficiency targets for the housing sector. The purpose of this article is to add the Swedish case of how capital market funds have become accessible and used by public and private housing companies, in particular for energy efficiency measures. The core of this article are interviews with representatives of Swedish housing companies made during the spring of 2021 with the purpose of mapping how public and larger private housing companies finance renovation and energy efficiency measures, and to what extent funds from the capital market are used for these purposes. In this article, we have found that capital market funds are commonly used by the Swedish public and the largest private housing companies. Bonds are less costly compared to bank loans, and green bonds are 0.02–0.03 percentage points less costly than conventional bonds. Furthermore, control systems that investigate the values of building portfolios as security for bonds are poor. A conclusion is that governmental control systems over the capital market issuing bonds for the housing market could be needed to avert future housing bubbles. © 2022, The Author(s).

  • 20.
    Mangold, Mikael
    et al.
    RISE - Research Institutes of Sweden (2017-2019), Samhällsbyggnad, Energi och cirkulär ekonomi.
    Mjörnell, Kristina
    RISE - Research Institutes of Sweden (2017-2019), Samhällsbyggnad, Energi och cirkulär ekonomi.
    Durgun, Özüm
    RISE - Research Institutes of Sweden (2017-2019), Samhällsbyggnad, Energi och cirkulär ekonomi.
    Johansson, Tim
    RISE Research Institutes of Sweden, Samhällsbyggnad, Systemomställning och tjänsteinnovation. Luleå University of Technology, Sweden.
    Fastighetsägares förutsättningar för renovering av sina byggnadsbestånd från miljonprogramstiden2018Inngår i: Bygg och Teknik, ISSN 0281-658X, E-ISSN 2002-8350, Vol. 2Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
    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.

  • 21.
    Mangold, Mikael
    et al.
    RISE - Research Institutes of Sweden (2017-2019), Samhällsbyggnad, Energi och cirkulär ekonomi.
    Mjörnell, Kristina
    RISE - Research Institutes of Sweden (2017-2019).
    Johansson, Tim
    RISE Research Institutes of Sweden, Samhällsbyggnad, Systemomställning och tjänsteinnovation. Luleå University of Technology, Sweden.
    Nya digitala verktyg ger bättre bild av renoveringsbehovet2017Inngår i: Bygg & Teknik, nr 5, s. 4Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
    Abstract [sv]

    Byggsektorn är inne i en period av mycket hög aktivitet. Över 700 000 nya bostäder efterfrågas, samtidigt som miljonprogrammets byggnader börjar nå sin förväntade livslängd. Detta är en enorm utmaning, men det är också en möjlighet, där vi kan nå energi- och klimatmål och skapagoda boendemiljöer till rimlig kostnad.

  • 22. Martinsson, Linda
    et al.
    S Tengberg, Charlotte
    Bengtson, Jenny
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Energieffektiv renovering i Brogården, Alingsås2015Inngår i: Bygg & teknik, Vol. 107, nr 2, s. 12-18Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
  • 23.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    A Method for Moisture Management in the Building Process2005Inngår i: Proceedings of the 7th Symposium on Building Physics in the Nordic Countries, IBRI , 2005, , s. 741-748Konferansepaper (Fagfellevurdert)
  • 24.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    A quality assurance system for improvement of indoor environment and energy use when retrofitting social housing2009Konferansepaper (Fagfellevurdert)
  • 25.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    A Strong Research for Sustainable Renovation Established in Sweden.2014Inngår i: World Sustainable Building, WSB, 2014 Conference. Barcelona. 2014-10-30, 2014Konferansepaper (Fagfellevurdert)
  • 26.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    A synthesis of studies on renovation profitability, published in CEO 2015 - Proceedings of the 8th Nordic Conference on Construction economics and organisation 28-29 May, 20152015Inngår i: Proceedings of the 8th Nordic Conference on Construction economics and organisation, 2015, , s. 16Konferansepaper (Annet vitenskapelig)
  • 27.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Alla vill ha hållbara attraktiva städer2015Inngår i: Fokus Region Stockholm, bilaga till SvD, Vol. 2Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
  • 28.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    BEEM-UP: Building Energy Efficiency for a Massive Market Uptake2013Konferansepaper (Annet vitenskapelig)
  • 29.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Beräkning av uttorkning för betong med byggcement2006Inngår i: Bygg&Teknik, nr 7, s. 56-59Artikkel i tidsskrift (Annet vitenskapelig)
  • 30.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut.
    ByggaF - A Method to Include Moisture Safety in the Construction Process2016Inngår i: Proceedings of the 20th CIB World Building Congress - Intelligent Built Environment for Life, 2016, s. 885-894Konferansepaper (Annet vitenskapelig)
    Abstract [en]

    ByggaF is a methodology for including moisture safety in the construction process that was developed and presented in 2007. ByggaF comprises methods to secure, document and communicate moisture safety throughout the construction process, from planning to management. The methods involve a standardized way of working designed to meet the demands of society and the client’s requirements for moisture safety. On request from the Swedish construction sector, ByggaF has been transformed into an industry standard. Since then, ByggaF has been used in a number of Swedish construction projects. One reason for the broad implementation of ByggaF is that the Swedish environmental assessment tool Miljöbyggnad demand for using ByggaF in order to reach “silver level” or “gold level”. Another reason is that more than 100 moisture experts have been trained to use ByggaF to assure a moisture safe building process. There has also been interest in using ByggaF expressed from other countries. The industry standard has been translated to English but it needs to be adjusted to country specific conditions, such as regulation and building practices in order to be applied in other countries. In Finland, the Swedish version of ByggaF has been adapted to Finnish regulations and used for including moisture safety in construction of a school at Bergö. There have also been attempts to adjust ByggaF to suit specific applications such as construction of prefabricated single family houses and renovation of multifamily houses.

    Fulltekst (pdf)
    fulltext
  • 31.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut.
    ByggaF. Metod för fuktsäker byggprocess2007Bok (Annet vitenskapelig)
  • 32.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    ByggaF Metod för fuktsäker byggprocess2015Rapport (Fagfellevurdert)
  • 33.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    ByggaF Metod för fuktsäkerhet i byggprocessen2015Rapport (Fagfellevurdert)
  • 34.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Dags för handling - hög tid att renovera äldre byggnader ! "Time for action - high time to renovate older buildings".2015Inngår i: Energi & Miljö, nr 2015-03-10Artikkel i tidsskrift (Annet vitenskapelig)
  • 35.
    Mjörnell, Kristina
    RISE - Research Institutes of Sweden.
    En stark forskningsmiljö om hållbar integrerad renovering, SIRen2017Inngår i: Husbyggaren, nr 5, s. 2s. 20-21Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
  • 36.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut.
    Experience from Using Prefabricated Elements for Adding Insulation and Upgrading of External Façades2016Inngår i: Case studies of building pathology in cultural heritage / [ed] João M.P.Q. Delgado, Springer, 2016, 1, s. 95-113Kapittel i bok, del av antologi (Annet vitenskapelig)
  • 37.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Experiences of using prefabricated elements for adding insulation and upgrading external facades - Proceedings of the ISBP 2015, International symposium on Building Pathology, 2015, Porto, Portugal2015Inngår i: Proceedings of the ISBP 2015, International symposium on Building Pathology,, 2015Konferansepaper (Annet vitenskapelig)
  • 38.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Fuktskyddsbeskrivning - ett verktyg för en fuktsäker byggprocess2004Inngår i: V-byggaren, nr 5, s. 3-Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
  • 39.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Fuktsäkerhet - ett mål i Byggsektorns miljöprogram 20032006Inngår i: Dagens Industri 2006-04-06, nr 4 (Kretsloppsrådets bilaga), s. 14-15Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
  • 40.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Fuktsäkring i byggprocessen2005Inngår i: Bygg & Teknik, nr 5, s. 21-24Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
  • 41.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Industry Standard ByggaF2014Inngår i: Proceedings of NSB 2014, 2014, , s. 145Konferansepaper (Annet vitenskapelig)
  • 42.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Laboratory measurement of hygro-thermal conditions and mould growth on wooden studs and ground plates in exterior walls exposed to rain during Construction time2014Inngår i: Proceedings of the IBPC2012, 2014Konferansepaper (Annet vitenskapelig)
  • 43.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Milparena - a network Project knowledge enhancement regarding energy renovation of multi-family Buildings in Sweden2011Inngår i: Proceedings Ökosan 2011, 2011Konferansepaper (Annet vitenskapelig)
  • 44.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Modell för beräkning av fuktighet i moderna betonger vid variabel temperatur2005Inngår i: Bygg & Teknik, nr 7, s. 38-41Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
  • 45.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Modelling of simultaneous temperature and moisture transportation in modern Concrete - Proceedings from International RILEM Symposium on Concrete Modelling - ConMod '08, May 2008, Delft2008Inngår i: Proceedings from International RILEM Symposium on Concrete Modelling - ConMod '08, 2008, , s. 665-672Konferansepaper (Annet vitenskapelig)
  • 46.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Ny branschstandard ByggaF - metod för fuktsäker byggprocess2013Inngår i: Bygg & Teknik, nr 5, s. 54-55Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
  • 47.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Ny rapport om ByggaF - metod för fuktsäker byggprocess2007Inngår i: Bygg&Teknik 5/2007, nr 5, s. 51-Artikkel i tidsskrift (Annet vitenskapelig)
  • 48.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Rationell isolering av ytterväggar och fasader för befintliga flerbostadshus2014Rapport (Fagfellevurdert)
  • 49.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Rationell tilläggsisolering av ytterväggar och fasader2014Inngår i: Husbyggaren, nr 3Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
    Abstract [sv]

    Det finns idag flera rationella system för tilläggsisolering och uppgradering av ytterväggar och fasader tillgängliga på marknaden. Trots det var inget av de systemen som har testats av bostadsbolagen fullt utvecklade när de började användas, varför en stor del av utvecklingsarbetet har skett under själva byggprocessen. Vissa produkter och system måste utvecklas ytterligare – särskilt montaget på plats – innan de kan användas i stor skala.

  • 50.
    Mjörnell, Kristina
    RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Byggnadsfysik och innemiljö (ETi ).
    Skador i putsade träregelväggar2007Inngår i: Bygg&Teknik, nr 1, s. 69-72Artikkel i tidsskrift (Annet vitenskapelig)
123 1 - 50 of 131
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