The purpose of this paper is to show the results of the task given by a major research program concerning low-energy building and indoor environment. The task was to develop contracting document model layouts to be used in zero-energy building (ZEB) and nearly zero-energy building (nZEB) construction projects.
A workshop method was chosen for gathering information and developing the layouts.
In the debate in the workshop three main topics arose: the selection of project delivery system, the use of performance controller for the heating, ventilation and air-conditioning (HVAC) systems and making innovation possible by making the call for bids as loose as possible.
The use of performance controller could be investigated more, and more accurate information and knowledge about the best practices on nZEB construction can be captured as the industry moves in that direction and more projects will appear.
The goals of the research program were met and also the main issues of nZEB construction contracting were documented, which can be utilized by the whole industry of house building.
The authors acknowledge the financial support from the RYM SY research program supporters: Tekes, Aalto University, Helsinki Metropolia, VTT, City of Espoo, Fatman, Fläkt-Woods, Helvar, Schneider Electric, Senaatti-kiinteistöt, Skanska, SPU Systems, Uponor, Vahanen and There Corporation. All participants in the workshop are also acknowledged for offering valuable insight to the issue at hand. The following persons contributed by participating to the workshop: Aleksi Kähärä – Recair, Antti Viitanen – SPU Systems, Hannu Rissanen – Fläkt-Woods, Jorma Vuoritsalo – Paroc, Juha-Matti Junnonen – Aalto University, Jukka Riikkula – Helvar, Jyri Nieminen VTT, Kim Bärlund – Paroc, Ksenia Ruuska – Fatman, Pekka Mäkinen – Fläkt-Woods, Pellervo Matilainen – Skanska, Petri Koivunen – Vallox, Riikka Holopainen – VTT, Tom Palmgren – Enervent, Veikko Simunaniemi – Mestariasunnot.
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