Saturday, 4 May 2019, 11:10 am, Ballsaal (1st floor)
| Time | Topic | Speaker |
| 11:10 am |
A step-by-step school retrofit |
Micheel Wassouf |
| The presentation discusses the technical, logistical, and cultural challenges of the first EnerPHit retrofitted Spanish school building. The elementary school "El Garrofer" was retrofittted to improve its energy efficiency in the summer of 2018. The client decided in the planning phase for a certification according to the EnerPhit standard. The building returned to operation late 2018. The first experiences in winter were very positive, and the first practical test of the buiding is planned for this summer. The feasibility of active air cooling is currently being studied for application in a second construction phase. In addition to the topics mentioned, the author will also present the first energy consumption and comfort data. | ||
| 11:30 am |
Passive House: It's worth it - especially for retrofits! |
Franz Freundorfer |
| 80% of the retrofit work carried out today does not achieve the optimum cost in terms of investment and operating costs. EnerPHit is the only practical roadmap to avoid this dilemma. There are some suppliers that are ready and waiting with envelopes and windows that fit together like two pieces of a puzzle. However, the integration of ventilation via one supplier is still completely missing. If the ventilation unit could be integrated into an existing window opening , with ventilation ducts being laid in front of the previous wall when adding exterior ventilation, we would see resulting cost and comfort advantages. This beneficial arrangement offer the retrofitting client comfort and vetilation while reducing the total annual costs. | ||
| 11:50 pm | Renovation of an old townhouse to the Passive House standard in a conservation area | Katerina Mertenova, Martin Augustin |
| 12:10 pm |
Retrofitting a residential building in Vienna and preserving the historic facade |
Helmut Schöberl, Ernst Schriefl |
| The preservation of historic or heritage-protected facades and the achievement of an exceptional energy standard may appear to be contradictory objectives, but need not necessarily be, as the high-quality refurbishment of a residential building from the 19th century in Vienna shows. The building, originally built in 1872, was severely damaged by a gas explosion in 2014 and then refurbished in the following years. The building successfully certified according to the EnerPHit standard in 2018 and also achieved first place at the Vienna Urban Renewal Award 2018. | ||
| 12:30 pm | Retrofitting with PFEFFER (prefabricated elements for fast energetic renovation) | Roland Matzig |