This page has only limited features, please log in for full access.

Dr. Tarja Häkkinen
VTT Technical Research Centre of Finland, Espoo, Finland

Basic Info

Basic Info is private.

Research Keywords & Expertise

0 Benchmarks
0 Resource Efficiency
0 sustainability assessment
0 Sustainability Indicators
0 LifeCycle Assessment

Honors and Awards

The user has no records in this section


Career Timeline

The user has no records in this section.


Short Biography

The user biography is not available.
Following
Followers
Co Authors
The list of users this user is following is empty.
Following: 0 users

Feed

Journal article
Published: 01 July 2014 in Buildings
Reads 0
Downloads 0

Better construction and use of buildings in the European Union would influence 42% of final energy consumption, about 35% of our greenhouse gas emissions and more than 50% of all extracted materials. It could also help to save up to 30% of water consumption. This paper outlines and draws conclusions about different aspects of the material efficiency of buildings and assesses the significance of different building materials on the material efficiency. The research uses an extensive literature study and a case-study in order to assess: should the depletion of materials be ignored in the environmental or sustainability assessment of buildings, are the related effects on land use, energy use and/or harmful emissions significant, should related indicators (such as GHGs) be used to indicate the material efficiency of buildings, and what is the significance of scarce materials, compared to the use of other building materials. This research suggests that the material efficiency should focus on the significant global impacts of material efficiency; not on the individual factors of it. At present global warming and greenhouse gas emissions are among the biggest global problems on which material efficiency has a direct impact on. Therefore, this paper suggests that greenhouse gas emissions could be used as an indicator for material efficiency in building.

ACS Style

Antti Ruuska; Tarja Häkkinen. Material Efficiency of Building Construction. Buildings 2014, 4, 266 -294.

AMA Style

Antti Ruuska, Tarja Häkkinen. Material Efficiency of Building Construction. Buildings. 2014; 4 (3):266-294.

Chicago/Turabian Style

Antti Ruuska; Tarja Häkkinen. 2014. "Material Efficiency of Building Construction." Buildings 4, no. 3: 266-294.

Articles
Published: 09 January 2014 in International Journal of Sustainable Engineering
Reads 0
Downloads 0

The objective of the research was to create improved understanding of the significance of diverse factors for the total greenhouse gas (GHG) emissions of buildings. The specific focus of the study was on the assessment of the significance of building materials and embodied carbon. The scope of the study covers multi-storey residential buildings in Finland. This research was based on a literature survey and supported by a parametric case study. The parametric study assessed the building-material-related GHG emissions relative to total GHG emissions and the possible range of variation. The research assesses the minimum and maximum GHG emissions for production of buildings with similar spaces, to reveal the likely range of variation for the emissions. The calculations for the ‘minimum’ and ‘maximum’ scenarios assume a similar purpose of use, occupancy and spaces in the building, while the production methods, materials, site conditions and location are varied. The research also assesses the relative importance of various building components and other calculation parameters in terms of GHGs. Total material-related GHG emissions were compared with the GHG emissions caused by the operation of the building, at three distinct levels of energy performance. In addition, the material- and operation-related GHG emissions were compared with the location-related GHG emissions arising from people's mobility.

ACS Style

Antti Petteri Ruuska; Tarja Marjatta Häkkinen. The significance of various factors for GHG emissions of buildings. International Journal of Sustainable Engineering 2014, 8, 1 -14.

AMA Style

Antti Petteri Ruuska, Tarja Marjatta Häkkinen. The significance of various factors for GHG emissions of buildings. International Journal of Sustainable Engineering. 2014; 8 (4-5):1-14.

Chicago/Turabian Style

Antti Petteri Ruuska; Tarja Marjatta Häkkinen. 2014. "The significance of various factors for GHG emissions of buildings." International Journal of Sustainable Engineering 8, no. 4-5: 1-14.

Technical papers
Published: 03 December 2013 in International Journal of Sustainable Building Technology and Urban Development
Reads 0
Downloads 0

The paper discusses and draws conclusions about the assessment principles of the global warming potential (GWP) of wooden building products. The discussion is based on the results of literature studies on life cycle assessments (LCAs) of wooden building products and research results on the effects of forestry on the carbon balance. Important issues that affect the assessment results of wooden building products include the consideration of carbon uptake during growth, the effect of harvesting on the carbon balance of forests and the consideration of the so-called substitution effect. The paper discusses the significance of these issues and draws conclusions about the justified consideration of these in product or economy level assessments and when seeking information on long-term or short-term impacts. The paper addresses the fact that average, regional and country-specific information should be developed for the land use impacts of wooden products. This would make it possible to consider reference land use scenarios in the LCAs of wooden building products. There is an urgent need for further development of the current standards to better support the assessment of the GHG reduction potential of wood products and buildings, especially with regard to the political targets to rapidly reduce the greenhouse gases (GHGs) within the coming decades.

ACS Style

Tarja Häkkinen; Appu Haapio. Principles of GHG emissions assessment of wooden building products. International Journal of Sustainable Building Technology and Urban Development 2013, 4, 306 -317.

AMA Style

Tarja Häkkinen, Appu Haapio. Principles of GHG emissions assessment of wooden building products. International Journal of Sustainable Building Technology and Urban Development. 2013; 4 (4):306-317.

Chicago/Turabian Style

Tarja Häkkinen; Appu Haapio. 2013. "Principles of GHG emissions assessment of wooden building products." International Journal of Sustainable Building Technology and Urban Development 4, no. 4: 306-317.

Research
Published: 11 April 2011 in Building Research & Information
Reads 0
Downloads 0

What are the actual barriers and drivers for sustainable building? A literature review, interviews and case studies are presented to address this question. Sustainable building is not hindered by a lack of technologies and assessment methods, but is instead beset with organizational and procedural difficulties entailed by the adoption of new methods. New technologies are resisted because they require process changes entailing risks and unforeseen costs. These hindrances can be reduced by learning what kind of decision-making phases, new tasks, actors, roles and ways of networking are needed. The barriers are outlined as steering mechanisms, economics, a lack of client understanding, process (procurement and tendering, timing, cooperation and networking), and underpinning knowledge (knowledge and common language, the availability of methods and tools, innovation). The most important actions to promote sustainable building are the development of the awareness of clients about the benefits of sustainable building, the development and adoption of methods for sustainable building requirement management, the mobilization of sustainable building tools, the development of designers' competence and team working, and the development of new concepts and services. The interviews and case studies were carried out in Finland, but the results may be applicable or interesting to other countries as well. Quels sont les obstacles et les vecteurs actuels en matière de construction de bâtiments durables ? Il est présenté une analyse bibliographique, des entretiens et des études de cas afin d'examiner cette question. La construction de bâtiments durables n'est pas entravée par un manque de technologies et de méthodes d'évaluation, mais est plutôt en butte à de multiples difficultés organisationnelles et procédurales occasionnées par l'adoption de méthodes nouvelles. Il y a une résistance aux nouvelles technologies parce qu'elles nécessitent des modifications des processus entraînant des risques et des coûts imprévus. Il est possible de réduire ces entraves en faisant l'apprentissage de ce qui est nécessaire, s'agissant des phases de prise de décision, des nouvelles tâches, des nouveaux acteurs, des nouvelles fonctions et des nouveaux modes de mise en réseau. Les obstacles passés en revue concernent les mécanismes de pilotage, l'économie, un manque de compréhension des clients, les processus (achats et appels d'offres, timing, coopération et mise en réseau) et les connaissances de base (connaissances et langage commun, disponibilité des méthodes et des outils, innovation). Les mesures les plus importantes pour promouvoir la construction de bâtiments durables sont le développement de la sensibilisation des clients aux avantages d'un bâtiment durable, le développement et l'adoption de méthodes de gestion des exigences propres aux bâtiments durables, la mobilisation des outils de construction durable, le développement des compétences des concepteurs et du travail d'équipe, et le développement de concepts et de services nouveaux. Les entretiens et les études de cas ont été réalisés en Finlande, mais les résultats peuvent également s'appliquer à d'autres pays ou présenter un intérêt pour d'autres pays. Mots clés: obstacles, industrie du bâtiment, vecteurs, gestion, changement organisationnel, professionnalisme, processus de construction durable, bâtiment durable

ACS Style

Tarja Häkkinen; Kaisa Belloni. Barriers and drivers for sustainable building. Building Research & Information 2011, 39, 239 -255.

AMA Style

Tarja Häkkinen, Kaisa Belloni. Barriers and drivers for sustainable building. Building Research & Information. 2011; 39 (3):239-255.

Chicago/Turabian Style

Tarja Häkkinen; Kaisa Belloni. 2011. "Barriers and drivers for sustainable building." Building Research & Information 39, no. 3: 239-255.

Original articles
Published: 25 October 2007 in Civil Engineering and Environmental Systems
Reads 0
Downloads 0

This article analyses sustainable urban construction-related indicators in terms of concerns and trends addressed in the EU Thematic Strategy on the Urban Environment and its preparatory work results. The indicators developed for and used by cities were analyzed with the help of the TISSUE browser, which includes 57 sets of indicators. The indicators were assessed with regard to their relevance with sustainable urban construction-related concerns. The concerns considered were as follows: environmental impacts of building; health and comfort, quality of building; ageing and consideration of disabled; availability of housing and buildings; readjustment for new business environment, full exploitation of new technological challenges; age of building stock, activities in refurbishment and renovation. The article analyses the consideration of these concerns and related trends in the sets of indicators under scrutiny, and gives recommendations of indicators that should be developed in order to support cities in target setting and monitoring of sustainable urban construction.

ACS Style

T. Häkkinen. Assessment of indicators for sustainable urban construction. Civil Engineering and Environmental Systems 2007, 24, 247 -259.

AMA Style

T. Häkkinen. Assessment of indicators for sustainable urban construction. Civil Engineering and Environmental Systems. 2007; 24 (4):247-259.

Chicago/Turabian Style

T. Häkkinen. 2007. "Assessment of indicators for sustainable urban construction." Civil Engineering and Environmental Systems 24, no. 4: 247-259.