Towards industrialized Zero Energy retrofit

Abstract

The goal to achieve the EU mission 20-20-20 through energy neutral buildings is a hot topic in Dutch building industry. Nowadays the focus lies in renovating the existing building stock to achieve the EU goal. Besides improving the energy efficiency a couple more issue needs attention. The acceptance of the occupants, the neighborhood and new business models. All these topics has one common related subject: The building industry needs to come with new building envelope solutions to achieve a less disturbance renovation process that fits in new business models. This research is part of consortium called the 2ndSkin. The purpose of this group is to find suitable solutions for the renovation of post war apartments in the Netherlands. The inhabitants are the central requirement. They are seeking for concepts that has minimal disturbance on the inhabitants and neighborhood, with minimal activities on site during and industrialized concept that could be use in a mass-implementation. The design is based on future potential building services, and the design is focusing only on the façade. The research has resulted in an integrated facade module that consist of two designs with existing technology been merged together. A design for the all-electric system mainly for the boiler to fit in the façade module and a façade/window element that carry these building services. This integrated design focus on a prefabrication and assemblage method of an integrated façade element. In order to provide acceleration on the building site and in assemblage process. Thereby disturbance on the inhabitants, on- site costs and transport will be minimalized. The outcome will be a higher safety, efficiency throw production till the assemblage process and potential amount of renovation as zero energy by using an all-electric. Besides that of course the façade element meets the stricter rules regard the energy efficiency.