Modelwohnbau Radstadt West represents a new way in social housing-construction funded by Salzburg municipality for research purposes. The building committee with representatives from the building-association, the community, the government, the architect, and research institutions decided to initiate an economic and ecological analysis of the project.
In general a lifecycle analysis aims to provide a holistic solution that ensures coherence between costs, quality, and environmental impact in order to obtain the best eco-efficiency. As a rule of thumb, such an analysis is a recommendable procedure prior to most housing projects. In this project there were several more specific objectives:
- develop instruments for ecological improvement of housing-projects
- provide good quality standard and living comfort
- generate limited costs for social dwellings
- minimise the impact on the environment
Therefore ten different variants of construction and heating systems were analysed throughout the entire lifecycle, which roughly include the stages of manufacturing of raw materials, construction, maintenance and disposal. The study consists of two parts:
- The economic part in which the total lifecycle costs, based on two
scenarios, is calculated:
Scenario one: prices for energy will rise at an equal rate as all other costs
Scenario two: Prices for energy will rise at a higher rate than all other costs - The ecological analysis investigates and assesses the environmental effects on the basis of the consumption of primary energy, the contribution to global warming, and the acidification potential.
According to the results of the study, it was possible to establish the optimal combination of construction procedure, choice of materials and heating system. This combination ensures low environmental impact and promotes renewable energy sources without a reduction in living comfort and keeps the rates low.
 |
| Extensive insulation of the building envelope was one of the outcomes of the lifecycle analysis |
For further inquiries, please contact:
SIR - Salzburger Institut für Raumordnung und Wohnen
Alpenstraße 47, 5020 Salzburg, Austria
www.sir.at
