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    Wolfgang Feist
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    A revolutionary result to be presented at the 14th International Passive House Conference: While the investive costs for new buildings in Austria are (as anticipated) strongly dependent on compactness, the step from Low Energy House standard does not seem to increase the average total construction costs. That is indeed the result of a statistical analysis carried out by Treberspurg, Smutny at al which will be published in the proceedings of the 14th International Passive House Conference.

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    A revolutionary result to be presented at the 14th International Passive House Conference: While the investive costs for new buildings in Austria are (as anticipated) strongly dependent on compactness, the step from Low Energy House standard does not seem to increase the average total construction costs. That is indeed the result of a statistical analysis carried out by Treberspurg, Smutny at al which will be published in the proceedings of the 14th International Passive House Conference.

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    542 views3 pages

    Costs Passive Houses Treberspurg Smutny 14th IPHT

    Uploaded by

    Wolfgang Feist
    A revolutionary result to be presented at the 14th International Passive House Conference: While the investive costs for new buildings in Austria are (as anticipated) strongly dependent on compactness, the step from Low Energy House standard does not seem to increase the average total construction costs. That is indeed the result of a statistical analysis carried out by Treberspurg, Smutny at al which will be published in the proceedings of the 14th International Passive House Conference.

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    of 3

    Prior to printed publication: Result from 14th International Passive House Conference

    From: Profl. Arch. DI Martin Treberspurg, DI Roman Smutny et al, 2010

    Energy Monitoring in Existing Passive House


    Housing Estates in Austria
    To date, more than 5,000 Passive Houses have been built in Austria. The share of
    new buildings that comply with the Passive House standard is to increase further.

    The main questions were whether current passive houses reach the goals, how much
    energy is actually saved compared to conventional residential complexes, and what
    the most effective approaches are to lower overall energy consumption.

    For low-energy homes and Passive Houses, the share of the costly building envelope
    in the useful area plays a major role in overall construction costs. The analysis of 24
    residential complexes in Vienna (completed between 2003 and 2008) clearly shows
    that shape factor and construction costs are closely related. More compact residential
    complexes are far cheaper. A shape factor of 0.2, 0.3, or 0.4 m/m results in costs of
    around 1,300, 1,400 or 1,500 /m. Passive Houses cost roughly the same as
    low-energy homes. 1 (see figure)

    Figure: Effect of shape factor on construction costs per useful living area (ULA)

    1
    Remark by the editor: But Passive Houses (PH) consume only some 33% of the heating energy of the low
    energy houses (NEH).
    Comparison Calculation (grey)
    and Measurements (green)
    very good coincidence with
    Passive Houses

    LEH average

    PH average

    Figure: The savings are real, measured consumption only 1/3 compared toVienna standard
    The paper is published in the

    Proceedings of the 14th International Passive House Conference,


    held in Dresden 2010, May 28th to 29th, Passive House Institut, 1st edition, Darmstadt 2010

    (523 pages, 73 papers). The Proceedings can be ordered online at this address:

    http://j.mp/Procedings_14th_PassiveHouse

    The Authors:

    Univ. Prof. Arch. DI Dr. Martin Treberspurg


    martin.treberspurg@boku.ac.at

    DI Roman Smutny
    roman.smutny@boku.ac.at

    Ass. Prof. Dr. Alexander Keul


    alexander.keul@sbg.ac.at

    Studienergebnisse gesamt www.wohnbauforschung.at

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