Decision support for sustainable, healthier and more productive buildings

There is a clear need for more sustainable, healthier and thus more productive solutions within the built environment. However at the moment the initial investment costs for applying new and more sustainable solutions for a good Indoor Air Quality within buildings are higher than the traditional solutions. As there is often a fixation on primary investment costs, is it very important to stimulate the application of Life Cycle Performance Costing models, to show clients which alternative, on the long run, is the best solution. The Life Cycle Performance Costing tool was developed to assess possible sustainable design solutions. The tool shows the advantages of more sustainable and healthier solutions during their lifecycle and so supports the decision making in favor for the possible application of those solutions. It uses dynamic costing based on discounted cash flows and the use of user scenarios instead of a traditional static approach. A first version is used to compare alternative room conditionings alternatives.