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About the project titled: HringRás (Circularity) (2022-2023). Carbon-neutral building in Icelandic conditions About the project The main goal of the project is to define a carbon-neutral building under Icelandic conditions . Project partners The partners of the project are: - Green Building Council Iceland; - Elín Þórólfsdóttir (EFLA, University of Iceland, HMS); - Þórhildur Fjóla Kristjánsdóttir (EFLA, Reykjavík University). The project received a grant from Askur – Housing and Construction Research Fund. View the project's first report here

We work to create a healthy, sustainable built environment that promotes well-being for all. More about us can be fouhnd here. Grænni Byggð members Join us By becoming a member you: - get discounts at events; - you become a role model; - your company takes an active responsibility in environmental matters; - you can increase your knowledge about environmental issues; - you get opportunities for networking; - you support professional work and discussions on environmental issues in construction and planning; - your company can be an active participant in Green Building Council Iceland's projects, professional groups and events; - your company can influence the work and strategy of Green Building Council Iceland. Thank you for submitting! Senda

Information on LCA and LCC. Life cycle assessment (LCA) Life cycle assessment (LCA) is used to evaluate a product or service's local and global environmental impact over its lifetime or "from cradle to grave". More precisely, the overall environmental impact is analysed, so the one occurring at all stages of the ecosystem or across the entire value chain, i.e. due to the acquisition of raw materials, production, use and disposal. The framework and methodology of performing LCA for buildings are presented in the EN 15978 standard (Sustainability of construction works - Assessment of environmental performance of buildings - Calculation method). According to the standard, the LCA results are presented for five main phases, and each phase is identified with a letter and serial number: The following software can, for example, be used to create an LCA for buildings: One Click LCA - Simple LCA calculations in the design phase of buildings Danish LCAbyg - From Denmark: Statens Byggeforskningsinstitut, Aalborg Universitet Copenhagen Green Delta’s OpenLCA – From GreenDelta in Berlin, Germany Life cycle costing (LCC) Often, Life-cycle costing (LCC) is performed together with LCA. LCC is used to analyseall the costs incurred during the asset's lifetime (e.g., product, service, building). The considered costs are, among others, purchase costs and costs associated with that (e.g., delivery or installation costs), operation costs (e.g., energy or fuel costs, maintenance costs), and end-of-life costs (e.g., disposal or recycling costs). LCC can also include the asset's residual value, so potential revenue from its reuse or sale.

Past projects On-going projects Here you can find our current and past projects that cover various topics, e.g., circular construction, BREEAM certification, and a net-zero building in Iceland. Projects Mynd: Ástrós Steingrímsdóttir On-going projects Bauhaus Goes North (BGN) 2024-2027 About Better data on carbon emissions from construction sites using real-world data 2025-2026 About Hringvangur – the Icelandic network for circular construction 2025-2026 About Carbon-neutral building in Icelandic conditions 2023-2025 About Guidelines to emission-free construction sites (BGF 2.9) 2023-2025 About Investigate the possibilities and opportunities for the increased implementation of a circular economy in the use of building materials 2025-2026 About Turf houses – can we learn from the past? 2025-2026 About Past projects Establishing clear requirements for reporting actual waste volumes (BGF 4.7 ) 2024-2025 About Establishing clear requirements for reporting actual waste volumes (BGF 4.7 ) 2024-2025 About Guidelines for the reuse of building materials and responsible demolition (BGF 4.9 , 4.10 ) 2024-2025 About CIRCON (The circular economy in construction: eco-design of circular buildings) 2022-2024 About Partners Newsletter CIRCON website Nordic Circularity Accelerator (NCA) 2023-2024 About Report Nordic Networks for Circular Construction (NNCC) 2021-2024 About Report Nordic Sustainable Construction - Emission-free Construction Sites 2022-2024 About Energy use - designed and measured 2022-2024 About BREEAM - An cost-benefit analysis of sustainable building certificates 2022-2023 About HringRás (Circularity) 2022-2023 About Mapping and guidance on the utilization potential of different construction waste 2022 About

HringRás (Circularity) About the project The main goal of the project is to promote an interdisciplinary conversation about the implementation of circular design and thinking in the Icelandic construction industry . Project partners The project partners are: - the Association of Architects of Iceland ; - EFLA Consulting Engineers ; - the Government Property Agency (FSRE) ; - Green Building Council Iceland; - the University of Iceland ; - the Center for Design and Architecture ; - the City of Reykjavík ; - the Federation of Icelandic Industries (SI) ; - VSO Consulting . The project received a grant from Askur – Housing and Construction Research Fund. Skoðið skýrslu verkefnisins hér

Torfhús - getum við lært af fortíðinni? About the project In the preliminary study done in 2024, we analysed the climate sustainability of turf houses by performing a life cycle assessment (LCA) for a model turf house and estimating its carbon footprint throughout its whole life. This gave us a baseline for addressing the following question: Could we learn from the past and change our ways of living and building inspired by turf houses? In this project, we'll investigate past techniques, attitudes toward material use, and living conditions we could adopt to current practices. Within the project, we'll also work on designing a circular house that can be built in Icelandic conditions. Eventually, we'll compare the carbon footprint of a modern circular house to that of a model turf house. Grænni byggð works with Lendager Island and Minjastofnun in this project. Collaborators Overview The project's objective is twofold. It aims to facilitate circular construction in Iceland by providing a proof-of-concept in the form of a circular house design and, simultaneously, bringing attention back to a vital part of Icelandic heritage: turf houses. The project received a grant from Askur - mannvirkjarannsóknasjóður which is funded by Húsnæðis- og mannvirkjastofnun, Ministry of Social Affairs and Housing and the Ministry of Culture, Innovation and Higher Education.

Grænir verkstaðir About the project Green Construction Sites encompass building projects as well as other infrastructure developments. The Green Building Council Iceland worked on the project Emission-Free Construction Sites over a two-and-a-half-year period from 2022 to 2024. The outcomes of this work included four reports, newsletters, a video presentation, and more. The objective of the Green Construction Sites project is to adapt the findings from the Emission-Free Construction Sites project to the Icelandic market and make them accessible to various stakeholder groups within the industry. This will be achieved by publishing 5–6 brochures containing detailed yet easy-to-read information about emissions from construction sites and guidelines for reducing those emissions.

Nýting gagna fyrir grunnviðmið kolefnisspors vegna losunar frá verkstöðum Um verkefnið Markmið verkefnisins Nýting gagna fyrir grunnviðmið kolefnisspors vegna losunar frá verkstöðum er að leggja fram tillögur um uppfærð meðaltalsgildi fyrir fasa A4 og A5. Við vottun bygginga safnast gögn um losun vegna framkvæmda. Þessi gögn eru að mestu notuð til að uppfylla reglur og skjalfestingu, en hafa hingað til ekki verið nýtt til að bæta nákvæmni grunnviðmiða. Íslensku meðaltalsgildin sem gefin eru upp fyrir fasa A4 og A5 eru 19,79 kgCO₂-íg/m² og 42,5 kgCO₂-íg/m². Þessi gildi byggja á íslenskum lífsferilsgreiningum sem voru til staðar árið 2022 en þær voru ekki margar. Í Vegvísi að vistvænni mannvirkjagerð kemur fram að stefnt sé að því að draga úr losun frá A4 og A5 um 70% fyrir árið 2030. Uppfærð meðaltalsgildi um losun frá verkstöðum stuðla að því að ná þessum markmiðum – bæði í samhengi við skuldbindingar Íslands og einstakra verkefna. Nákvæmari gögn gera ákvarðanatöku markvissari og auðvelda að greina hvar mest er unnt að draga úr losun. Slík vinna getur einnig orðið hvati til að bæta nákvæmni í öðrum fösum lífsferilsgreininga. Verkefnið hlaut styrk úr Aski – mannvirkjarannsóknasjóði sem er fjármagnaður af Húsnæðis- og mannvirkjastofnun, félags- og húsnæðismálaráðuneyti og menningar-, nýsköpunar- og háskólaráðuneyti.

Green Building Council Iceland members The following companies, organizations, institutions, and individuals are members of Green Building Council Iceland: 1. Flokkur BM Vallá Eik fasteignafélag Húsnæðis- og mannvirkjastofnun Reitir fasteignafélag Verkís verkfræðistofa 2nd Category Fasteignir ríkissjóðs Landsvirkjun Tark-Teiknistofan 3. Flokkur Alta ráðgjöf Alverk Arkís arkitektar ehf ASK arkitektar Basalt Arkitektar Byko COWI Eignaumsjón exa nordic HJARK Hornsteinar Húsasmiðjan Iðan fræðslusetur Íslandsbanki Íslenskir aðalverktakar Jáverk Klasi ehf. Landmótun sf Landslag ehf. Landsvirkjun Langeldur Límtré Vírnet Lota ehf Maison Pago Samstæða Orkuveitu Reykjavíkur Skipulagsstofnun Steinull hf. Steypustöðin Teiknistofan Tark ehf. Teiknistofan Tröð ehf. THG arkitektar Umhverfisstofnun Urriðaholt ehf. VA Arkitektar Vegagerðin Verkvist Vista verkfræðistofa VSB verkfræðistofa VSÓ Ráðgjöf 4th Category - Arnhildur Pálmadóttir - an architect at Studio Arnhildur Pálmadóttir; - Finnur Sveinsson - environmental scientist at Visthús; - Hildur Ýr Ottósdóttir - an architect at Ydda arkitektar; - Magnús Jensen - an architect and chairman Miðgarðs byggingarfélags; - Sigríður Maack - an architect at Arktika ehf.

Bauhaus Goes North (BGN) About the project The Bauhaus Goes North (BGN) project is realised by the Green Building Council Iceland together with 13 partners and associated partners from the Northern Periphery and Arctic (NPA) region. The project received funding from the Interreg NPA Programme , co-funded by the European Union. The project aims to increase stakeholders' knowledge and facilitate the implementation of best practices that align with the New European Bauhaus (NEB) in the NPA region. The project's main focus are practices linked to circularity and resource efficiency. Deliverables The NEB initiative was launched to make the European Green Deal a 'tangible experience' - offering a new cultural approach for Europe, a systemic change that is innovative, attractive, and human-centred. It has three core values guiding it: Sustainability (circularity, zero pollution, biodiversity) Aesthetics (quality of experience, style beyond functionality) Inclusion (valuing diversity, securing accessibility and affordability) The project will deliver: a Co-Design Playbook and a Replicability Index tool aiming to ensure the replicability of identified best NEB practices, considering local contexts, competencies, capacity building and policy for supporting the transition to circular and resource-efficient economies; three annual Calls for Best Practices in NEB in the NPA Region , which aim to accelerate take-up of replicable solutions; four jointly developed demonstrator projects (i.e., a district plan, a campus and a historic building, and a sustainable island development) to illustrate the practical implementation of NEB aspects in diverse settings and contexts. Project website Overview Green Building Council Iceland is responsible for Work Package 2 (WP2) in the project: NEB Best Practices Competition: Assembling and Disseminating Exemplary Cases in the NPA Region. The main objective of WP2 is to identify best practices aligning with NEB in the NPA region. This will be done through three annual calls. The chosen winning and front-running practices will be highlighted on the Project website and circulated among various Nordic and European networks to disseminate them effectively. Eventually, the identified best practices will be a part of one of the project outcomes – the so-called Co-Design Playbook. Project partners are as follows: University College Cork , Cork, Ireland; Green Building Council Iceland , Reykjavík, Iceland; OULU University of Applied Science , Oulu, Finland; UIT The Arctic University of Norway , Tromsø, Norway; City of Bodø , Bodø, Norway; Umeå University , Umeå, Sweden; Cork County Council , Cork, Ireland. In the project, we also have 7 associated partners from Denmark, Finland, Faroe Islands, Ireland, and Sweden. Partners

Koma á skýrri kröfu um skil á rauntölum um magn úrgangs og virkja eftirfylgni (BGF 4.7 ) About the project Grænni byggð worked within an action 4.7 Skil á rauntölum um magn byggingarúrgangs in Vegvísir að vistvænni mannvirkjagerð 2030 aiming to improve data collection and processing on construction and demolition waste in Iceland. We were responsible for preparing an overview of systems and ways of collecting and processing data on waste in Denmark, Finland, Norway, and Sweden. This overview was based on desk research and interviews with key stakeholders dealing with waste data in the Nordic countries. This overview will provide a foundation for further work of the parties responsible for the action.

Leiðbeiningar um endurnýtingu byggingarefna og ábyrgt niðurrif (BGF 4.9 , 4.10 ) About the project Grænni byggð worked within two actions in Vegvísir að vistvænni mannvirkjagerð 2030: 4.9. Gefa út leiðbeiningar um úrgangsforvarnir, undirbúning fyrir endurnotkun, endurvinnslu og aðra endurnýtingu byggingarefna við hönnun nýrra mannvirkja og á endurbótum . 4.10. Gefa út leiðbeiningar um ábyrgt niðurrif . To address the objectives of these two actions, the concise yet informative materials were published on the Hringvangur website . The two actions were tackled collectively as they are interwoven (i.e., reuse and recycling of materials is a significant part of selective demolition). The materials contain information on, among others: Circularity potential of most commonly used materials and products (e.g., concrete, steel, wood, glass, sanitary equipment, fire equipment, indoor products – windows, door, ventilation ducts); Environmental motivation standing behind circular practices and selective demolition with examples of real-life circular solutions and projects; New roles and responsibilities of chosen main stakeholders in circular projects.