ANALYSIS OF CRITICAL SUCCESS FACTORS OF THE GERMAN PASSIVE HOUSE IN TECHNICAL MANAGEMENT PERSPECTIVE

The Passive House (PH) concept first presented in Germany is an excellent ecofriendly construction technology that enhances not only energy efficiency, but also occupants' comfort. PH construction presupposes high-standard, green technologies to ensure optimal insulation, airtightness, window system, thermal bridge, and ventilation. This study was conducted to determine critical factors for successful implementation of PH from the perspectives of technology and construction management using German success cases. To this end, we performed a literature review and conducted a focus-group interview (FGI) with German PH experts. The interview results were assessed via hierarchical classification by grouping similar items in an expert workshop. A relative importance analysis was performed by conducting a questionnaire survey with Certified Passive House Designers (CPHDs) based on the resulting hierarchically structured items. As a result, construction management factors, such as interdisciplinary collaboration and inter-field cooperation, were found to have high importance in addition to technological factors. Therefore, it is considered essential to consider both technological and managerial aspects of development for successful implementation of the PH concept.