Croatia, Primošten: SEEDpass speakers held an intensive 2day course on Passive House Design

From the 5th to the 6th September in Primošten, within 12th OTMC international conference, intensive seminar and workshop on the Passive House design were held.
The course gathered together around almost 30 highly educated professionals from related and multidisciplinary fields of work: architects, civil engineers, mechanical engineers and environmental engineering experts. The seminar and workshop are part of the SEEDpass project activities’ dissemination program.
Dissemination of work, knowledge and experience was done by lecturers from Germany (Dipl. Ing. Arch. Wolfgang Hasper; PHI), Italy (Dr. Francesco Nesi, MSc. Eng Ileana Iannone; ZEPHIR), Greece (MSc. Eng. Stephanos Pallantzas; HPHI) and Croatia (Mag. Ing. Arch. Petra Kondres Tomažić; OIKON). In only two days lecturers successfully transferred, not only Passive House design basics, but also building physics calculation details related to specific buildings’ examples.
Lectured topics can be found listed on this LINK.

SEEDpass_course_participants

The first day of the seminar was dedicated to the basic principles of Passive House design, but with particular emphasis on customizing details to climatic conditions typical for the Mediterranean area. After the introduction with SEEDpass project starting points and goals, presented by project manager Petra Kondres Tomažić (OIKON; Croatia)  Dr. Francesco Nesi (ZEPHIR; Italy)  introduced participants with the basic principles of the Passive House buildings design. Further on, Wolfgang Hasper (PHI; Germany) systematically elaborated the quality of the standard. Hereafter, the lecture on climate independence of the standard clearly answered the question why the Passive House design principles are globally immutable, but the details are the ones that require customization – and in this case, the adjustment to the warm climate.
In the conditions of the so-called “lucky climates”, through examples and associated calculation, the importance and influence of the 5 pillars of energy efficiency: thermal envelope, windows, thermal bridges, airtightness and ventilation was further explained. The impact of these Passive House pillars was supported by selected examples ranging from the project design phase to the examples of realized projects, ,together with associated building’s physics calculation. Cost-effectiveness of design solutions and performance was justified as well. Among the many thematic units during the first day, the subject of energy efficient renovation wasn’t left out either. It  was presented through selected projects and associated details by Dr. Francesco Nesi (ZEPHIR, Italy).

Knowledge gained during the first day made it easier for participants to follow and understand the contents throughout the second day, when the emphasis was placed on the importance of integration of design and building physics calculation from the very early project phase. The 2nd day workshop was led by Petra Kondres Tomažić (OIKON), Ileana Iannone (ZEPHIR) and Stephanos Pallantzas (HPHI). By using selected simple Passive House building example, participants were led step-by-step through all the segments of the calculations done in PHPP tool.  In addition, Wolfgang Hasper (PHI) has raised great interest among the participants by presenting the latest tendencies of Passive House Institute regarding political independence of the primary energy calculation factors. New method for calculating primary energy based on the share of renewable energy sources-  factor of renewable energy sources (PER – primary energy renewable) was elaborated in detail. Based on PER factors Passive House Institute has introduced different classes of Passive House buildings, which can be determined by using the latest version of PHPP 9 tool.

The workshop ended with the presentation of the energy retrofit project of typical house from the 60’s, located in Athens, based on which Stephanos Pallantzas (HPHI) proved  that even in the conditions of economic crisis we can, without doubt, create a better future.

The next training program, as part of the final activities by SEEDpass Consortium, was announced for the upcoming year 2016, also in Croatia, which will be complemented by an additional set of educational materials, ready for further dissemination of knowledge and experience after the completion of the SEEDpass project.

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The passivhaus energy threshold of 15 kWh/(m²yr) for heating serves as a rough benchmark. It may vary in different climate conditions.