Carbon value engineering: A framework for integrating embodied carbon and cost reduction strategies in building design

Robati, Mehdi; Oldfield, Philip; Nezhad, Ali Akbar; Carmichael, David G.; Kuru, Aysu

doi:10.1016/j.buildenv.2021.107620

Cited by 82 publications

(39 citation statements)

References 53 publications

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“…The cities in Helsinki have vowed to drastically reduce carbon emissions through numerous climate initiatives, including some renewable energy use initiatives [47]. However, the findings of the authors of [48] show that current renewable energy policies in the Helsinki metropolitan area are weak and many challenges exist. Nevertheless, various ways to strengthen current practices are available.…”

Section: The Most Important Actions In Reaching the Carbon Neutrality Target In Building Sectormentioning

confidence: 99%

Attitudes and Approaches of Finnish Retrofit Industry Stakeholders toward Achieving Nearly Zero-Energy Buildings

Alam

Airaksinen²,

Lahdelma

2021

Sustainability

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Key stakeholders in industry are highly responsible for achieving energy performance targets. Particularly, this paper assesses the attitudes, approaches, and experiences of Finnish construction professionals regarding energy-efficient buildings, or nZEBs. A three-tier investigation was conducted including surveys and expert interviews with several stakeholders. The structure of this approach was informed by preliminary data and information available on the Finnish construction sector. The questionnaire showed that the stakeholders ranked energy efficiency and embodied energy/carbon as very important. The survey highlighted that the importance of the embodied carbon CO2 in the materials is less important than the energy efficiency from many of the stakeholders’ points of view. “Energy efficiency” is very important for ESCOs, contractors, and facility managers followed by architects, HVAC engineers, and construction design engineers. Nevertheless, the opinions of architects ranked “embodied energy CO2” as the most important regarding nZEB. When it comes to the importance of “running time emissions” toward nZEB, contractors and ESCO companies ranked it as 1 for importance followed by property owners (78%) and tenants (75%). It is very fascinating to see from the survey that “running time carbon emissions” has been ranked 1 (very important) by all stakeholders. This study will enable construction industry stakeholders to make provisions for overcoming the barriers, gaps, and challenges identified in the practices of the nZEB projects. It will also inform the formulation of policies that drive retrofit uptake.

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Section: The Most Important Actions In Reaching the Carbon Neutrality Target In Building Sectormentioning

confidence: 99%

Attitudes and Approaches of Finnish Retrofit Industry Stakeholders toward Achieving Nearly Zero-Energy Buildings

Alam

Airaksinen²,

Lahdelma

2021

Sustainability

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“…CO2 salımındaki bu artış iklim değişikliğinde önemli bir paya sahip olmaktadır. 2018 verilerine göre binalar CO2 salımının %39'undan sorumlu tutulmaktadır (Robati et al, 2021…”

Section: şEkil 2 Atık Yönetim Hiyerarşisi (Url-1)unclassified

Waste Management in Buildings: Recycling Suggestions and Prevention of Carbon Emission Through an Education Building

Kara

Kayılı

2021

Bartın Orman Fakültesi Dergisi

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Enerji ve kaynak kullanımında büyük miktarda payı olan yapılara yaşam döngüsü boyunca yüksek hızda kaynak girdisi sağlanmakta ve hizmet ömrünün dolduğu yıkım sonrası evrede ise yapı bileşenlerinin geri kazanılmasına yönelik atık yönetimi etkin bir şekilde planlanmadığında enerji ve kaynak girdisi, ekolojik ve ekonomik kayıplara neden olmaktadır. Özellikle günümüzde kentsel dönüşüme uğrayan yapıların artması bu sorunu daha da öne çıkarmaktadır. Bu bağlamda, yapıya giren enerji ve kaynakların korunması ve geri dönüşümüne yönelik, Karabük'te yıkımı gerçekleştirilen bir eğitim yapısı üzerinden atık yönetiminin incelendiği çalışmada, yapılan literatür taraması sonucunda atık sahalarına gönderilen büyük miktardaki tuğla ve seramik atıklarının geri dönüşümüne yönelik öneriler belirlenmiştir. Sunulan bu geri dönüşüm önerileri sonucunda doğaya salımı engellenebilecek gömülü karbon miktarı tespit edilmiştir. Tuğla için 220 ton 601 kgCO2 eq, seramik için ise 8 ton 41 kg CO2 eq'nin doğaya salımının engellenebileceği tespit edilen yıkıntı atıklarının öneriler dahilinde sektöre kazandırılmasının, enerji ve kaynak korunumu açısından önemi belirtilmiştir.

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“…On the other hand, the materials used in additional floor construction and renovation, e.g., facade renovation should be renewable, recyclable, long-lasting, and their production should consume minimum energy and produce minimum emissions [ 17 , 20 ]. Studies have shown that wood has many advantages over conventional building materials such as steel and concrete, especially in terms of environmental properties, contributing to making it an ideal material for renovation [ 21 , 22 , 23 , 24 , 25 ]. In this sense, timber buildings are considered lower carbon (less fossil fuel-intensive) structures than non-timbered buildings [ 26 , 27 , 28 , 29 ], and wood construction represents a lower embodied energy consumption compared to concrete and steel production [ 30 ], while concrete production accounts for around 8% of world CO 2 emissions [ 31 ].…”

Section: Introductionmentioning

confidence: 99%

Residents’ Attitudes towards Wooden Facade Renovation and Additional Floor Construction in Finland

Karjalainen

Ilgın

Metsäranta

et al. 2021

IJERPH

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To date, studies that provide a comprehensive understanding of residents’ attitudes towards wooden facade renovation and additional floor construction are lacking in the literature. This paper examined these important practices from the perspective of Finnish residents via a questionnaire survey. The 243 responses received highlighted the following: (1) residents’ attitude towards wooden facade renovation and additional floor construction was generally positive; (2) younger and more educated people welcomed these practices more; (3) respondents mostly thought that wooden facade renovation and additional floor construction will increase the attractiveness of residential areas; (4) vast majority were positive about facade renovation, especially with wood; (5) apartment owners welcomed the housing association’s decision to build additional floors to fund the facade renovation; (6) participants assessed the combination of additional floors with outbuildings, followed by additional floor construction alone as the most suitable ways to expand residential areas; and (7) respondents’ attitudes towards all renovation proposals aimed at improving the initial condition of suburban apartments were positive and differed only slightly from each other in terms of popularity. It is believed that this study will provide insights to interested parties, e.g., architects, developers, contractors to better meet users’ needs in the renovation of suburban apartments.

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Carbon value engineering: A framework for integrating embodied carbon and cost reduction strategies in building design

Cited by 82 publications

References 53 publications

Attitudes and Approaches of Finnish Retrofit Industry Stakeholders toward Achieving Nearly Zero-Energy Buildings

Attitudes and Approaches of Finnish Retrofit Industry Stakeholders toward Achieving Nearly Zero-Energy Buildings

Waste Management in Buildings: Recycling Suggestions and Prevention of Carbon Emission Through an Education Building

Residents’ Attitudes towards Wooden Facade Renovation and Additional Floor Construction in Finland

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