The attention on green building is driven by the desire to reduce a building’s running cost over its entire life cycle. However, with the use of sustainable technologies and more environmentally friendly products in the building sector, the construction industry contributes significantly to sustainable actions of our society. Different certification systems have entered the market with the aim to measure a building’s sustainability. However, each system uses its own set of criteria for the purpose of rating. The primary goal of this study is to identify a comprehensive set of criteria for the measurement of building sustainability, and therefore to facilitate the comparison of existing rating methods. The collection and analysis of the criteria, identified through a comprehensive literature review, has led to the establishment of two additional categories besides the 3 pillars of sustainability. The comparative analyses presented in this thesis reveal strengths and weaknesses of the chosen green building certification systems - LEED, BREEAM, and DGNB.

This thesis summarizes the results from several studies with connection to sustainability in construction and management of real estate. Here, the concept sustainability includes environmental, social and economic dimensions and focus is on the actors with the best possibilities to impact real estate, namely the real estate owners and the developers. The thesis consists of six papers. Real estate owners’ perception of and incentives and strategies for sustainability was studied in four ways: incentives for energy efficiency and other sustainability issues in connection to renovation (papers I and II), factors that characterize firms with an ambitious approach to energy efficiency (paper V) and economic incentives for energy efficiency (paper VI). Developers’ behavior and impact on sustainability was studied in two ways: how developers’ planning and construction methods may influence energy consumption for future residents (paper III) and how developers relate to requirements for building environmental certification levels (paper IV). The first paper aims to clarify how housing firms see and treat energy efficiency matters in connection to renovation of multi-family buildings constructed during the 1960’s and 70’s. Interviews with housing firms resulted in four ideal housing firm types illustrating that housing firms have more or less incentives to improve energy efficiency. The second paper aimed to study a model for renovation of buildings in a residential area in peripheral Stockholm and to assess how it considers environmental, social and economic sustainability as well as technical concerns. Paper V builds on the results in paper I and aims to identify factors, on a firm level as well as in the surroundings of the firm, that characterize housing firms who own multi-family buildings from the 1960’s and 70’s and who have an ambitious approach to energy efficiency. Paper VI uses information from energy performance certificates to study whether better energy performance increases the selling price of single-family homes, which would increase owners’ incentives to improve energy efficiency. Paper III takes its starting point in an indicated shift in developers’ planning and construction practices for laundry facilities in owner-occupied multi-family buildings. The paper aims to clarify whether a shift has actually occurred from communal laundry rooms to in-unit laundry appliances and to illuminate the impact this could have on residents’ energy consumption for laundry. Paper IV reports the study of how developers who have adopted the environmental certification system LEED relate to the requirements for specific certification levels and how updated requirements risk undermining developers’ incentives for sustainable construction. / Den här avhandlingen sammanfattar arbetet från flera studier med koppling till hållbarhet inom bygg och förvaltning av fastigheter. Begreppet hållbarhet omfattar här tre dimensioner: miljömässig, social och ekonomisk hållbarhet, och fokus ligger på de aktörer som har mest möjlighet att påverka fastigheterna, nämligen fastighetsägare och projektutvecklare. I avhandlingen ingår sex uppsatser. Fastighetsägares uppfattning av och incitament och strategier för hållbarhet undersöktes på fyra olika sätt: incitament för energieffektivisering och andra hållbarhetsfrågor i samband med renovering (uppsats I och II), faktorer som karaktäriserar företag med ett ambitiöst förhållningssätt i energieffektiviseringsfrågor (uppsats V) samt ekonomiska incitament för energieffektivisering (uppsats VI). Projektutvecklares beteende och påverkan på hållbarhet undersöktes på två sätt: hur projektutvecklares planering och byggmetoder kan påverka energianvändningen för framtida boende (uppsats III) och hur projektutvecklare förhåller sig till kravnivåer i miljöcertifiering av byggnader (uppsats IV). Den första uppsatsen syftar till att belysa hur bostadsföretag ser på och behandlar energieffektiviseringsfrågor i samband med renovering av flerbostadshus byggda under miljonprogrammet. Baserat på intervjuer med bostadsföretag resulterade den explorativa studien i konstruktionen av fyra idealtyper av bostadsföretag med mer eller mindre incitament för att energieffektivisera. Den andra uppsatsen syftade till att undersöka en modell för renovering av miljonprogramshus i ett bostadsområde i Stockholms ytterområden och bedöma hur den tar hänsyn till miljömässig, social och ekonomisk hållbarhet tillsammans med tekniska överväganden. Uppsats V bygger på resultaten i uppsats I och syftar till att urskilja faktorer, såväl på företagsnivå som i företagets omgivning, som karaktäriserar bostadsföretag som äger flerbostadshus från miljonprogramsåren och som har en ambitiös hållning i energieffektiviseringsfrågor. Uppsats VI använder information från energideklarationer för att undersöka om bättre energiprestanda ökar försäljningspriset på småhus, något som skulle öka ägarens incitament för energieffektivisering. Uppsats III utgår från en indikerad förändring i projektutvecklares planering och byggmetoder av tvättinrättningar i flerbostadshus med bostadsrätt. Uppsatsen syftar till att klarlägga om en förändring har skett från gemensam tvättstuga till tvättmöjligheter i den egna bostaden och belysa vilken effekt det skulle kunna ha på de boendes energianvändning för tvätt. I uppsats IV klarläggs hur projektutvecklare som bygger enligt miljöcertifieringssystemet LEED förhåller sig till kraven för att uppnå nivåerna för att klassificeras och hur uppdaterade kravnivåer riskerar att undergräva projektutvecklarnas incitament för att bygga hållbart. / <p>QC 20141218</p>

The building and construction sector accounts for a significant proportion of carbon dioxide emissions in Sweden, a total of 12.2 million tons of carbon dioxide equivalents, which corresponds to approximately 19 % of the total emissions of greenhouse gas in Sweden. As a response to the fact that construction has a major impact, different environmental certification systems have emerged for buildings. One certification system is the Swedish certification system “Miljöbyggnad”, which includes sustainability issues through the whole construction process. The building can achieve three grades in Miljöbyggnad: bronze; which corresponds to the level in legislations, silver; which is the most common certification grade, and gold; that corresponds to the highest grade, thus requiring the most effort. The grade is given according to how the building performs in different assessment areas, called indicators. For new construction, the system consists of 15 different indicators within three areas: energy, indoor environment and materials. The indicators are connected to both ecological and social sustainability. The indicators connected to ecological sustainability are considered to either minimize hazardous substances, increase the amount of renewable energy or decrease the use of energy, thus a reduction in climate impact. Social sustainability is connected to how the tenant’s wellbeing is impacted by the building. The meaning of wellbeing is, in this case, health and comfort. In this master thesis the theoretical possibility of raising the Miljöbyggnad grade from silver to gold has been studied for the construction of new student housing. Stockholms studentbostäder´s new construction of four houses at Lappkärrsberget has been the study case. Stockholm’s student housing, “Stockholms studentbostäder”, is the largest actor of student housing in Sweden, with approximately 8000 housings. Stockholms studentbostäder is currently in the middle of the process that within the next ten years build 2000 new student housings. A major expansion with 800 housings will be built in their largest housing area, Lappkärrsberget. In the first building phase, the new construction of four houses is carried out, with the buildings having 10 to 13 floors which include 297 housings, mainly one room apartments and some two room apartments. The houses are built for the Miljöbyggnad grade silver according to the manual in version 2.2. After version 2.2, later versions, as version 3.0 have been launched. The main focus has been to identify what theoretical actions are required to raise the grade to gold, and to what cost. Four main questions have been studied:Is it possible to reach the grade gold for the four new buildings in Lappkärrsberget?What would it mean for the buildings, in terms of costs and actions, to raise the grade from silver to gold in version 2.2?How high grade is possible to reach for the indicator energy types, if the tenants have their own electricity agreements in the current version of Miljöbyggnad 2.2, and the later version 3.0? What general differences would it make to build in a later version 3.0, instead of 2.2? The method used has been to study the current status and then together with the manual for Miljöbyggnad make a comparison to achieve the grade gold in a specific gold scenario formulated together with Stockholms studentbostäder. In the next step, actors from the building industry both internal from Stockholms studentbostäder, external at other companies together with suppliers, were asked about what actions were needed to achieve gold and to what cost.For the first question, if it is theoretically possible to build with Miljöbyggnad gold for the new housing in Lappkärrsberget, it was concluded that it would not be possible to achieve gold due to the limited opportunities to optimize the properties of the windows with the current building performance. Therefore, it is recommended to decide what grades off the indicators to aim for and in an early stage develop the construction design and make the construction planning after the indicator grades. To achieve high grades, it is especially important to optimize the windows, in line with the requirements for the indicators. Another uncertain factor concerns how the students would respond in a survey which requires an approved result to reach a gold grade. Although it is not possible to reach gold as a building grade, it was noted that several of the indicators were close to gold and it would not be hard to raise these grades to gold to improve the overall performance of the buildings. In the second question, the cost was calculated when raising the grade from silver to gold. For this it was assumed that the windows and surveys did reach the desirable grade, and in that case the cost would increase between 0,4 % and 1,3 % of the contract budget of the project. The probable value would be somewhere in between, estimated to 0,6 %, which is a low increase in cost. In the third question, it was investigated what grade would be possible to achieve for the indicator energy types if the tenants are required to manage their own electricity agreement, in both version 2.2 and version 3.0. It was concluded that the district heating was required to change, to make an impact on the grade. Stockholm Exergi is the supplier of the district heating for the houses in Lappkärrsberget. Thus, Stockholm Exergi´s three alternatives have been studied, which differs in district heating composition and impact on the environment. The alternatives were studied for different years, due to the fact that district heating changes composition for each year. The preliminary certification of the grade in Lappkärrsberget was made with district heating data from 2016 and no matter what district heating alternative was used from 2016, the highest reachable grade is bronze in version 2.2. In version 3.0, the household electricity, meaning the tenant´s apartment electricity, is optional to use for the calculation of the grade. When calculating the grade without household electricity, with the same data as the preliminary certification, from 2016, the grade was raised to silver. With the alternatives of the district heating that were available year 2020 from Stockholm Exergi it would be possible to reach grade gold with the most environmentally friendly alternative, in version 2.2 and silver would be the highest grade in version 3.0. In the last question, version 2.2 and 3.0 were compared and some differences were noted. For example, the indicator nitrogen dioxide was removed in version 3.0 and the indicator climate impact of the foundation of the building and the building frame was added. The requirements have been updated in version 3.0. For example, the indicator percentage of energy types has a requirement that at least 5 % of the energy needs to be locally produced and renewable to reach gold level, for example with solar panels. The requirements for surveys have also been reduced in version 3.0, to fewer indicators in need of surveys and there is also an alternative to verify the grades by using measurements instead of surveys. / Bygg- och fastighetssektorn står för en avsevärd del av koldioxidutsläppen i Sverige, hela 12,2 miljoner ton koldioxidekvivalenter, vilket motsvarar cirka 19 % av de totala utsläppen av växthusgaser i Sverige. Flera miljöcertifieringssystem har vuxit fram som ett svar på att byggandet har en stor påverkan på miljön där fokus ligger på ett mer hållbart samhällsbyggande. Ett sådant certifieringssystem för byggnader är Miljöbyggnad vilket är ett system som inkluderar hållbarhetsarbete genom hela byggprocessen. Det finns tre betyg som en byggnad kan uppnå i Miljöbyggnad: brons som motsvarar lagkrav, silver som är det vanligaste certifieringsbetyget och guld som motsvarar högsta betyg, vilket därmed kräver mest ansträngning. Betyget ges efter hur byggnaden presterar enligt olika bedömningsområden eller indikatorer som de kallas. För nyproduktion består systemet av 15 olika indikatorer inom tre områden: energi, inomhusmiljö och material. Indikatorerna kopplar både mot ekologisk och social hållbarhet. Där indikatorerna som kopplar mot ekologisk hållbarhet anses antingen ge en minimering i farliga ämnen, ökning i förnybar energi eller en minskning av energianvändning och därmed en minskning i klimatpåverkan. Social hållbarhet kopplas mot om det påverkar hyresgästernas välmående. Där det med välmående menas hälsa och trivsel.I det här examensarbetet har den teoretiska möjligheten att höja Miljöbyggnadsbetyg från silver till guld studerats för Stockholms studentbostäders nyproduktion av studentbostäder. Betygshöjningen har studerats i en fallstudie för ett projekt med fyra punkthus på Lappkärrsberget. Stockholms studentbostäder är Sveriges största studentbostadsaktör med ungefär 8000 bostäder. För närvarande är de mitt uppe i arbetet att under de kommande tio åren bygga 2000 nya studentbostäder. En stor expandering med 800 bostäder kommer att göras i deras största bostadsområde Lappkärrsberget. I en första etapp sker en nyproduktion av de fyra punkthusen vilket inkluderar hus på tio till tretton våningar på totalt 297 studentbostäder i form av främst studentettor, ett rum med kök samt några tvårumslägenheter. Punkthusen byggs för Miljöbyggnad silver, enligt manualen för version 2.2. Det har efter version 2.2 lanserats senare versioner av Miljöbyggnad, såsom version 3.0. Ett särskilt fokus har varit vilka teoretiska åtgärder som behöver vidtas för att höja betyget till guld, samt till vilken kostnad. Fyra huvudfrågeställningar har tagits fram:Är det möjligt att bygga enligt Miljöbyggnad guld för punkthusen?Vad skulle det innebära för punkthusen i form av kostnader och åtgärder att bygga enligt Miljöbyggnad guld istället för silver i version 2.2?Hur högt betyg är det möjligt att nå för indikatorn energislag om hyresgästerna fortsätter ha egna elabonnemang i version 2.2 och 3.0?Vilka generella skillnader skulle det innebära för ett nyproduktionsprojekt om det istället byggdes enligt en senare version, det vill säga Miljöbyggnad version 3.0? Metoden för att besvara frågeställningarna har varit att studera aktuell status för punkthusen och därefter med hjälp av Miljöbyggnadsmanualen jämfört det med kriterierna för guld vid ett guldscenario framtaget tillsammans med Stockholms studentbostäder. I nästa steg har personer i branschen, både internt hos Stockholms studentbostäder, externt hos andra företag samt leverantörer till punkthusen tillfrågats om vilka åtgärder de skulle vidta för att uppnå guld, samt vilken kostnad de uppskattar dessa till. För den första frågan om det är teoretiskt möjligt att bygga med Miljöbyggnad guld för punkthusen blev resultatet att det inte vore möjligt. Det beror på att det inte skulle gå att optimera fönsteregenskaperna tillräckligt med nuvarande utformning på byggnaderna. Det rekommenderas därför att redan från början av projektet bestämma vilka indikatorbetyg det satsas mot och ta fram ritningar och projektera byggnaden med betygen i åtanke. Särskilt viktigt är det att optimera fönstrena i linje med indikatorkraven för att uppnå höga betyg. En annan osäker faktor för guldbetyg gäller hur hyresgästerna skulle svara i en enkätundersökning, där det krävs ett godkänt resultat för att nå guld. Även om det som byggnadsbetyg inte vore möjligt att nå guld för punkthusen, konstaterades det att flera av indikatorerna låg väldigt nära guldbetyg och det hade krävts lite för att höja dessa till guld för att förbättra byggnadens prestanda.I nästa fråga har det tagits reda på hur dyrt det skulle vara att höja betyget till guld. I den frågan har det antagits att fönstrena klarade kraven och enkätundersökningen blev godkänd, vilket skulle innebära en ökning på mellan ungefär 0,4 % och 1,3 % av entreprenadkostnaden för projektet, med ett generellt påslag på 0,6 %, vilket är ett litet påslag. I den tredje frågan undersöktes hur långt det skulle vara möjligt att nå med indikatorn energislag när hyresgästerna tecknar egna elabonnemang, både för Miljöbyggnad version 2.2 och version 3.0. När hyresgästerna har egna elabonnemang konstaterades det att fjärrvärmen behövde ändras för att påverka betyget. Stockholm Exergi är fjärrvärmeleverantör för punkthusen, därmed har deras tre fjärrvärmealternativ studerats. Deras alternativ skiljer sig åt i fjärrvärmesammansättning och därmed även i påverkan på miljön. Alternativen har även studerats för olika år då sammansättningen av fjärrvärmen förändras med tiden. Preliminärcertifieringen av punkthusen gjordes med data från 2016 och oavsett alternativ från 2016 uppnås inte mer än brons i version 2.2. Medan i version 3.0 är hushållselen, det vill säga hyresgästernas egna elabonnemang en frivillig post att räkna in för Miljöbyggnadsbetyg. Räknas hushållselen bort kan det med 2016 års värden uppnås silver. För de fjärrvärmealternativ som erbjuds år 2020 skulle det gå att uppnå guld med det mest miljövänliga alternativet, i version 2.2 medan silver blir det högsta betyget i version 3.0. I den sista frågeställningen jämfördes version 2.2 och 3.0 och det finns en del skillnader, exempelvis att indikatorn kvävedioxid tagits bort i 3.0 och att indikatorn stommen och grundens klimatpåverkan lagts till. Kraven har uppdaterats något i version 3.0, för exempelvis indikatorn andel av energislag finns det för guld ett krav på att minst 5 % av energin ska vara lokalt producerad i anslutning till byggnaden med förnybar energi exempelvis med solceller. Kraven på enkäter har också förändrats där färre indikatorer kräver enkäter i version 3.0 och det erbjuds ett alternativ till enkäter med mätning vid verifiering av guldbetyg.

Submitted by Silvana Teresinha Dornelles Studzinski (sstudzinski) on 2016-12-22T14:04:21Z No. of bitstreams: 1 Jonas Leonardo Pessanha de Souza_.pdf: 4035191 bytes, checksum: 9d6bed2d1de67826e772313353b6eed0 (MD5) / Made available in DSpace on 2016-12-22T14:04:21Z (GMT). No. of bitstreams: 1 Jonas Leonardo Pessanha de Souza_.pdf: 4035191 bytes, checksum: 9d6bed2d1de67826e772313353b6eed0 (MD5) Previous issue date: 2016-10-20 / CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / CNPQ – Conselho Nacional de Desenvolvimento Científico e Tecnológico / PROSUP - Programa de Suporte à Pós-Gradução de Instituições de Ensino Particulares / Com o objetivo de melhorar o desempenho das edificações, seguindo tendência mundial, a NBR 15.575/2013 foi desenvolvida. Conhecida como Norma de Desempenho (ND), ela define critérios mínimos, intermediários e superiores e métodos de avaliação do desempenho das edificações habitacionais. A partir de julho de 2013 o atendimento a esta norma passou a ser obrigatório no território nacional, segundo o Código Civil e o Código de Defesa ao Consumidor (Lei nº 8.078/90). Entretanto, há resistências para adoção, visto que, dependendo do tipo de edificação, são necessárias inúmeras mudanças que dependem de todos os envolvidos do setor. O objetivo deste trabalho foi identificar as principais mudanças e desafios na implantação do nível superior da ND em uma edificação habitacional na cidade de Novo Hamburgo/RS, através de um estudo de caso realizado em duas etapas. A primeira etapa consistiu na análise quali-quantitativa da ND em relação à edificação estudada e a segunda etapa compreende uma análise das principais mudanças e desafios observados na implantação do nível superior da Norma. Na primeira etapa demonstrou-se a distribuição dos 155 critérios e definiram-se as relações entre partes e aspectos da norma que são mais difíceis de atender a Norma. A segunda etapa foi realizada em duas atividades. Na primeira foram analisados 101 critérios nos 6 aspectos considerados mais complexos, como desempenho estrutural, segurança contra incêndio, estanqueidade, desempenho térmico, desempenho acústico e durabilidade e manutenibilidade. Foi possível identificar como estes critérios se relacionam com as etapas da obra e agentes envolvidos. Quanto às etapas da obra destacaram-se os projetos complementares, execução do revestimento das paredes, execução das intalações, projeto arquitetônico e execução de pisos. Em relação aos agentes destacaram-se os projetistas, a ITA e os fornecedores. Por fim, na segunda atividade, observaram-se as principais alterações e desafios na implantação da ND. No aspecto de segurança contra incêndio identificou-se a necessidade da realização de ensaios de reação e resistência ao fogo. Quanto à estanqueidade foram realizados ensaios de infiltração de água em fachadas e de umidade em vedações. Em relação ao desempenho térmico foi necessária a simulação térmica de toda a edificação. Quanto à durabilidade e manutenibilidade observou-se a necessidade de detalhamentos e especificações para atingir ao VUP dos sistemas. O desempenho estrutural exigiu mudanças na estrutura, como novos parâmetros para o cobrimento e classe do concreto, controle tecnológico total e ensaios de resistência. O desempenho acústico foi o que motivou as maiores alterações na edificação, como o uso de mantas acústicas no piso e blocos estruturais preenchidos com argamassa com grande proporção de areia. Identificou-se que, em geral, os maiores desafios foram a execução de ensaios, análises para avaliação do desempenho de sistemas ou da edificação e mudanças nos sistemas para atender a ND. / Aiming to improve the building performance, following a worldwide trend, NBR 15.575/2013 has been developed. Known as Performance Standard (PS), it defines minimum, intermediate and higher criteria and performance evaluation methods of residential buildings. In July 2013, compliance with this standard became mandatory in the national territory, according to the Civil Code and Consumer Protection Code (Law number 8.078/90). However, there´s a resistance to its adoption, because depending on the type of building, several changes that depend on everyone involved in the engineering industry are necessary. The objective of this study was to identify the main changes and challenges for the implementation of the higher level of PS in a residential building in the city of Novo Hamburgo/RS, based on a case study carried out in two stages. The first stage consisted of a quantitative and qualitative analysis of the PS in relation to the studied building and the second stage consisted of an analysis of the major changes and challenges observed in the implementation of the Standard at the higher level. In the first stage, was demonstrated the distribution of 155 criteria and define the relationships between parts and aspects of the standard that make them more difficult to comply with the standard. The second stage was carried out in two activities. In the first one was analyzed 101 criteria in six aspects which are considered more complex, such as structural performance, fire safety, tightness, thermal performance, acoustic performance and durability and maintainability. It was possible to identify how these criteria relate to the stages of the construction and stakeholders. In relation to the construction steps, the highlights are complementary projects, implementation of lining on the walls, implementation of installations, architectural design and construction of floors. In relation to the staff, the highlights are designers, the technical institution of evaluation and suppliers. Finally, in the second activity, was observed the main changes and challenges in the implementation of the PS. In terms of fire safety, was identified the need to carry out tests of reaction and fire resistance; in tightness, water infiltration tests on facades and humidity fences were performed; in thermal performance, thermal simulation of all building was necessary; in durability and maintainability, was observed the need to detail and specify systems that achieve the project usefulness. The structural performance required changes in the structure, such as new parameters for the coating and type of concrete, full technological control and resistance tests. The acoustic performance motivated the greatest changes in the building, such as the use of acoustic blankets on the floor and building blocks filled with mortar and a large proportion of sand. Was found that, in general, the larger challenges were performing tests, analysis for evaluation of system or edification performance and changes in the systems to comply with the PS.

O objetivo desta pesquisa foi elucidar o modo como os sistemas de avaliação de sustentabilidade na arquitetura ponderam o impacto ambiental e as tecnologias referentes è energia, aos materiais e à água. Para este fim foram selecionados sete sistemas de avaliação de sustentabilidade, como o: BREEAM - Reino Unido, 1990; GBTool - Internacional, 1996; LEED - Estados Unidos, 1996; SPEAR - Inglaterra, 2000; HQE - França, 2002; CASBEE - Japão, 2002; e NABERS - Austrália, 2004. Paralelamente, fez-se uma pesquisa das tecnologias relacionadas à energia, materiais e água. Nesta etapa o enfoque da pesquisa nestes três campos foi em relação ao uso de tecnologias renováveis; os impactos ambientais associados à escolha de cada processo e suas atuais conjunturas no Brasil. O fato da pesquisa se tratar das tecnologias a serem inseridas no projeto de arquitetura incutiu a necessidade de conhecer a opinião de experientes profissionais que atuam hoje na área de sustentabilidade. Foram então, realizadas dez entrevistas com arquitetos, engenheiros e consultores ambientais na cidade de Londres, que atuam em projetos ao redor do mundo. Desta forma foi possível concluir a pesquisa com um conhecimento mais aprofundado em relação ao que se conhece na teoria e o que atualmente é feito na prática, no sentido de se construir edifícios e cidades de menor impacto ambiental. / The objective of this research was to elucidate how architecture sustainability assessment methods evaluates environmental impact and energy, materials and water management technologies. Seven assessment methods were therefore selected, which were: BREEAM - BRE EcoHomes (United Kingdom, 1990); GBTool (International, 1996); LEED (United States, 1996); SPEAR (United Kingdom, 2000); HQE (France, 2002); CASBEE (Japan, 2002) e NABERS (Australia, 2004). In addition, an investigation of technologies related to energy, materials and water was done. At this phase, the research focused the use of renewable technologies, as well as environmental impacts associated with the choice of each process and its current conjunctures in Brazil. Since the research deals with the insertion of technologies in the architecture design, which requires studying the opinion of experienced professionals who act today in the sustainability field, ten interviews were carried among architects, engineers and environmental consultants in the city of London, who act in international designs. Therefore, it was possible to conclude the research with a deeper knowledge of what is known as theory, and what is currently being done in practice, regarding buildings and cities construction that cause fewer environmental negative impacts.

O objetivo desta pesquisa foi elucidar o modo como os sistemas de avaliação de sustentabilidade na arquitetura ponderam o impacto ambiental e as tecnologias referentes è energia, aos materiais e à água. Para este fim foram selecionados sete sistemas de avaliação de sustentabilidade, como o: BREEAM - Reino Unido, 1990; GBTool - Internacional, 1996; LEED - Estados Unidos, 1996; SPEAR - Inglaterra, 2000; HQE - França, 2002; CASBEE - Japão, 2002; e NABERS - Austrália, 2004. Paralelamente, fez-se uma pesquisa das tecnologias relacionadas à energia, materiais e água. Nesta etapa o enfoque da pesquisa nestes três campos foi em relação ao uso de tecnologias renováveis; os impactos ambientais associados à escolha de cada processo e suas atuais conjunturas no Brasil. O fato da pesquisa se tratar das tecnologias a serem inseridas no projeto de arquitetura incutiu a necessidade de conhecer a opinião de experientes profissionais que atuam hoje na área de sustentabilidade. Foram então, realizadas dez entrevistas com arquitetos, engenheiros e consultores ambientais na cidade de Londres, que atuam em projetos ao redor do mundo. Desta forma foi possível concluir a pesquisa com um conhecimento mais aprofundado em relação ao que se conhece na teoria e o que atualmente é feito na prática, no sentido de se construir edifícios e cidades de menor impacto ambiental. / The objective of this research was to elucidate how architecture sustainability assessment methods evaluates environmental impact and energy, materials and water management technologies. Seven assessment methods were therefore selected, which were: BREEAM - BRE EcoHomes (United Kingdom, 1990); GBTool (International, 1996); LEED (United States, 1996); SPEAR (United Kingdom, 2000); HQE (France, 2002); CASBEE (Japan, 2002) e NABERS (Australia, 2004). In addition, an investigation of technologies related to energy, materials and water was done. At this phase, the research focused the use of renewable technologies, as well as environmental impacts associated with the choice of each process and its current conjunctures in Brazil. Since the research deals with the insertion of technologies in the architecture design, which requires studying the opinion of experienced professionals who act today in the sustainability field, ten interviews were carried among architects, engineers and environmental consultants in the city of London, who act in international designs. Therefore, it was possible to conclude the research with a deeper knowledge of what is known as theory, and what is currently being done in practice, regarding buildings and cities construction that cause fewer environmental negative impacts.

This study departed from a research basis being somewhat lacking in the context of green building certification and especially the two-folded problem, regarding the characteristics of the network of business relationships and how an energy supply company should exploit opportunities in this network context and its relationships. As such, the purpose of this study is to investigate and analyse the network context and its business relationship characteristics, as well as to present recommendations of how an energy supply company can engage green building certification and cope with the business relationships in order to exploit business opportunities. Based on previous research regarding the real estate industry, energy service industry and the construction industry, a well-founded literature base could be extended further by applying theoretical concepts related to business relationship elements and strategy-making. The nature of green building certification and to fulfil the purpose of the study, called for a qualitative research strategy performed through a multiple-case study design. This led to the investigation of four certification projects, subject to certifications in the systems of EU GreenBuilding and Miljöbyggnad, where the most important actors, relationships and project contents constitute the empirical data. The findings of this thesis suggest that the relationships are characterized as having a short-term focus and an avoidance to become interdependent. In this manner elements such as commitment and adaptation are shown as rather shallow, where actions of commitment are not typically short-term sacrifices for a long-term mutual benefit and adaptations mostly occur with respect to specific projects. The adaptive behaviour is also more or less explained as a standardized procedure, avoiding relationship specific investments. Trust is an important element mostly in order to reflect the competence of the counterpart, where previous successful projects indicate the skill and knowledge. Despite the characteristics of the relationships, the benefits of long-term, high involvement, cooperative relationships were highlighted as good aspects to consider in this context. These characteristics, along with outspoken market demands, acted as the basis for the development of recommendations for an energy supply company in terms of a step-wise action framework. In this sense, the first acknowledgement of the framework is that the current position related to green building certification projects of an energy supply company is rather unestablished, with only one exception found. This implies a strategic approach in terms of understanding how to develop and maintain their business relationships, with respect to the previously mentioned characteristics. Through a successful utilization of the action framework (with respect to certain barriers to overcome), this thesis emphasizes a wide range of opportunities such as to have a proactive approach, maintain interactions between projects, to develop the knowledge, to offer a holistic approach and to utilize long-term cooperative relational benefits. The analysis and framework is highly suitable when applied by an energy supply company, but the authors also argue for the findings to be of relevance also for other practitioners in the context of green building certification. In addition, the authors believe that the orientation of this thesis might be a trigger for future similar research approaches, applied in different contexts.

The subject of diploma thesis is energy assessment of the building according to BREEAM methodology. First chapter overviews certification systems. The main part of the thesis consists of energy assessment of the building with application of BREEAM requirements. Specifically, building, its systems and interior environment analysis has been carried out, determination of heat transfer coefficients and production of energy performance certificate. Energy assessment of the building is carried out in accordance to BREEAM criteria. Third part contains analysis and evaluation of thermal comfort.

Buildings account for about thirty percent of the total emissions of greenhouse gases annually in the world. Forty percent of the world´s energy is consumed by buildings. Buildings are a large part of the world´s environmental problems and it´s hard to ignore this fact. The last decade, awareness of the negative environmental impact we humans have on our planet has increased, and many different environmental commitments flourish in the world today. One way for the construction and real estate sector to reduce its environmental footprint is through green buildings. The purpose of this thesis is to examine the economic and legal possibilities and limitations in order to increase the stock of green buildings. The thesis will be based on four questions: What are the incentives for green buildings, Does the law differ for green buildings compared to conventional buildings? Are other markets using green incentives?, What does property management companies think of green buildings? The study is based on literature studies and interviews with industry professionals. The results of the study show that green buildings mean many economic opportunities, such as lower operating and maintenance costs, higher property value, better indoor environment a stronger brand. One economic limitation is that many people mistakenly believe that green buildings means a higher investment cost, but it doesn’t have to be. The lack of knowledge regarding green buildings could mean that some choose not to build them, which is an indirect economic limitation. The Swedish car market and the real estate market in the US use tax reliefs and various forms of green bonuses to push environmental commitments, which is proved to work as environmental cars and green buildings increased in use and in stock. In Sweden there is no specific legislation for green buildings. Swedish buildings comply under the same laws, whether they are green or not. The laws to apply are the planning and building act, the environmental code and the law of energy declaration. In addition to these laws, there are also government regulations from Boverket in boverkets building regulations that has to be followed. These laws, rules and regulations demands certain building performances and are relatively tough. A green building has tougher demand on a building’s technical features than a conventional building has. In 2015 a new legislation was formed that prohibited municipalities to set higher demands on a buildings technical features, than what is in the law. The law is to be followed by the municipality when they operate as an administrative authority and when they enter into land allocation agreements. This means that municipalities themselves in these two cases can’t require a building with higher demands. But in those cases when the developer requires stricter requirements in partnership with municipalities, there is still a possibility to get a green building, as the law doesn’t mention this exception. By offering economic incentives, such as the US housing market and the Swedish car market does to push environmental commitments, it can be used on the Swedish housing market to increase the want to build green buildings. To increase the opportunities for municipalities to build green the law needs to change. Both these methods are expensive and time consuming. Since it within a few years probably will be a requirement for building companies and other companies to build, manage and offer green buildings in order to be able to compete on the market, the conclusion of the thesis is that it is more efficient to let the development of society take its time. The development will mean that the demand for green buildings will increase and in the future will make green building market position even stronger. / Byggnader står för ungefär trettio procent av de totala utsläppen av växthusgaser årligen i världen. Fyrtio procent av all världens energi förbrukas av byggnader. Det senaste decenniet har medvetenheten kring den negativa miljöpåverkan vi människor har på vår jord ökat och många olika miljöengagemang florerar i världen. Ett sätt för bygg- och fastighetssektorn att minska dess miljöavtryck är genom gröna byggnader. Syftet med detta arbete är att undersöka vilka ekonomiska och juridiska möjligheter och begränsningar som finns för att öka beståndet av gröna byggnader. Arbetet kommer utgå från fyra frågeställningar: Vilka är incitamenten för gröna byggnader?, Skiljer sig lagen åt för gröna byggnader jämfört med konventionella byggnader?, Använder andra marknader sig utav gröna incitament?, Hur ställer sig fastighetsförvaltningsbolag sig till gröna byggnader? Undersökningen baseras på litteraturstudier och intervjuer med branschfolk. Resultatet av undersökningen visar på att gröna byggnader innebär många ekonomiska möjligheter, som lägre drift- och underhållskostnader, högre fastighetsvärde, bättre inomhusmiljö och ett starkare varumärke. En ekonomisk begränsning som finns är att många felaktigt tror att gröna byggnader innebär högre investeringskostnader, vilket det inte behöver göra. Okunskapen kring gröna byggnader kan göra att många väljer att inte bygga dessa vilket innebär en indirekt ekonomisk begränsning. Bilmarknaden i Sverige och fastighetsmarknaden i USA använder sig utav skattelättnader och olika former av gröna bonusar för att driva på miljöengagemang, vilket visat sig fungera då miljöbilar och gröna byggnader ökat i användning respektive bestånd. I svensk lag finns det ingen särlagstiftning för gröna byggnader. Svenska byggnader lyder alla under samma lag, oavsett grön eller inte. De lagar som gäller är plan- och bygglagstiftningen, miljöbalken och lagen om energideklaration. Utöver dessa lagar finns det även myndighetsföreskrifter från Boverket i boverkets byggregler som ska följas. Dessa lagar, regler och föreskrifter ställer alla krav på byggnaders prestanda och är relativt hårda. För att få till en grön byggnad kräver det att kraven på byggnadens tekniska egenskaper skärps, men inget i lagen begränsar en byggherre att sätta högre krav. 2015 blev det dock förbjudet för kommuner att ställa högre krav på en byggnads tekniska egenskaper än vad som står i lag. Lagen ska tillämpas då kommuner agerar myndighet och vid markanvisningar. Detta medför att kommuner i dessa fall inte själva kan kräva en byggnad som möter hårdare krav. Men i de fall byggherren själv kräver hårdare krav vid samarbeten med kommuner finns fortfarande en möjlighet att få till en grön byggnad, eftersom att lagen inte nämner detta undantag. Genom att erbjuda ekonomiska incitament så som fastighetsmarknaden i USA och bilmarknaden i Sverige gör för att driva på miljöengagemang kan man få fler att vilja bygga grönt även på fastighetsmarknaden i Sverige. För att öka möjligheterna för kommuner att bygga grönt måste man ändra lagen. Båda dessa metoder är kostsamma och tar lång tid. Eftersom det inom några få år förmodligen kommer vara ett måste för byggaktörer och andra företag att bygga, förvalta eller erbjuda gröna byggnader för att kunna konkurrera på marknaden är slutsatsen med arbetet att det är effektivare att följa med i den samhällsutveckling som idag sker. Utvecklingen kommer innebära att efterfrågan på gröna byggnader ökar och i framtiden kommer göra gröna byggnaders position på marknaden vara ännu starkare.

Throughout our lives, we spend approximately 80–90% of our time indoors, and the environment which wereside in is a key factor determining our comfort and well-being. A favorable indoor environment can enhance our quality of life whereas a less than favorable environment may have the opposite effect. A key ambition of several Green Building Certifications is the desire to reduce a building’s environmental impact and energy consumption, and, in addition, the ambition to provide a satisfying indoor environment.The WELL Building Standard (WELL) is an up and coming green building certification explicitly embracing comfort, health and well-being in the built environment. The standard covers seven over-arching topics forwhich the indoor environment is evaluated by; Air, Water, Nourishment, Light, Fitness, Comfort, andMind. Compared to well-established Green Building Certifications like LEED, BREEAM and Miljöbyggnad, the WELL standard is newly introduced on the Swedish market with few current applications. The purpose of this report is to apply WELL for Bengt Dahlgren’s office in Stockholm and provide resultsdemonstrating to what extent the office satisfies the certification. The report will also provide recommendedmeasures so as to reach a desired WELL certification grade. Furthermore, the compliance between WELL and the Swedish Green Building Certification Miljöbyggnad will be studied. The study has been carried out byreviewing the relevant policy, property and equipment documents; conducting technical measurements; andinspecting the conditions of the office area and its surroundings. Correspondence with stakeholders and actorsknowledgeable of the current state of the office have been a constant element throughout the project.  The results show that Bengt Dahlgren’s office currently do not fulfill the required preconditions to be eligiblefor a WELL certification. However, if those preconditions were to be addressed, a completed certificationwould result in a grade corresponding to Silver. By implementing the recommendations provided by the authorit should also be possible to reach the higher certification grade Gold. The study furthermore concludes that WELL and Miljöbyggnad only demonstrate limited overlap. By evaluating Bengt Dahlgren’s office in Stockholm, this report strives to give insight for how a Swedish office facility comply with the WELL certification. The work should also give light to new perspectives and applications regarding health, comfortand well-being which may not be included in traditional Green Building Certifications. The compliance for WELL with Swedish regulations, standards and norms have been treated in this report, however, the topic can be suggested as an area for future work, as there is room for an explicit study concerning this. / Vi spenderar uppskattningsvis 80–90% av våra liv inomhus och miljön vi vistas i är en avgörande faktor för vårhälsa och välmående. En gynnsam inomhusmiljö kan förhöja vår livskvalité medan en ogynnsam miljö kan haden motsatta effekten. En väsentlig ambition för flera miljöcertifieringar är önskan att reducera byggnaders miljöpåverkan och energikonsumtion, samt, därutöver, strävan efter att förse en behaglig inomhusmiljö.WELL Building Standard (WELL) är en miljöcertifiering som uteslutande behandlar komfort, hälsa och välmående i inomhusmiljön. Certifieringen täcker sju övergripande koncept som inomhusmiljön utvärderasefter; Luft, Vatten, Kost, Ljus, Motion, Komfort och Sinnesupplevelse. Jämfört med konventionellamiljöcertifieringar som LEED, BREEAM och Miljöbyggnad så är WELL nyintroducerad på den svenskamarknaden med få tillämpningar i dagsläget. Syftet med det här arbetet är att applicera WELL för Bengt Dahlgrens kontor i Stockholm och frambringa resultatet som visar på hur väl kontoret uppfyller certifieringen. Arbetet kommer även tillhandahållare kommenderade åtgärder för hur en önskad certifieringsnivå kan nås. Därutöver kommer överenstämmelsen mellan WELL och den svenska miljöcertifieringen Miljöbyggnad studeras. Arbetat har utförts genomgranskning av relevanta policy-, fastighets- och utrustningsdokument; utförande av tekniska mätningar; och inspektioner av förhållanden vid kontoret och dess omgivning. Korrespondens med aktörer närvarande vid byggnadens uppförande samt aktörer insatta i byggnadens nuvarande förhållanden har hållits genomgående under projektets gång. De framtagna resultaten visar på att Bengt Dahlgrens kontor i nuläget inte uppfyller de nödvändiga skallkrav för att vara berättigad en certifiering. Ifall dessa skallkrav vore åtgärdade skulle en certifiering generera ett betygmotsvarande Silver. Genom att implementera de åtgärder som rekommenderas av författaren kan kontoret även nå det högre betyget Guld. Arbetet visar dessutom på att WELL och Miljöbyggnad endast erhåller en begränsad överensstämmelse. Genom att utvärdera Bengt Dahlgrens kontor i Stockholm ämnar det här arbetetge en insikt i hur en svensk fastighet står sig gentemot WELL. Arbetet hoppas också ge utrymme åt nya perspektiv och tillämpningar av hälsa, komfort och välmående i byggnader, som kanske inte är inkluderade i traditionella miljöcertifieringar. Överensstämmelsen för WELL med svenska regler, standarder och normer kan föreslås som ett område lämpligt för framtida studier. Även om detta ämne har studerats i denna rapport så finns det utrymme för att genomföra en djupare studie som behandlar detta.