LIFE CYCLE ASSESSMENT OF BUILDING ELEMENTS FROM THE BROAD PERSPECTIVE OF PLANNERS DESIGN-CONSIDERATIONS

摘要

The ecological evaluation of building elements has to deal with uncertainties in knowledge and application. The complexity imposed by all the different demands on building elements and the different perspective of builders, planners and producers impede the development of just one specific information and evaluation model to cover all the different perspectives. The research carried out at the Institute of Ecological and Regional Development in Dresden wanted to find out how far the Life-Cycle-Assessment (LCA) is suitable for the evaluation of building elements and how far modifications are necessary. In the study, the overall methodical framework was developed towards a specific assessment-method for building elements. It became obvious, that the result of an ordinary input-output LCA is in some way or the other usefull to the planner, but in oder to support decision-making, the evaluation-method must include furthermore economical, functional, technical and health aspects.