Expanding the Building System into a Product Platform for Improved Design and Manufacture – A Case Study in Industrialised House-Building
Industrialised house builders in Sweden have been challenged to meet the demand for housing solutions as the population has increased at a faster rate. As a result, the housing industry is currently faced with objectives to improve productivity and internal efficiency while also controlling the production cost of houses without compromising external efficiency. To remain competitive, many companies developed own building system (BS) based on fixed or partially fixed production systems with different prefabrication techniques. The challenges remain in the design phase and proper methods and tools are required to manage it. In many industries, the product platform approach has been used as a means to achieve both internal and external efficiency. However, little attention has been paid in relating the platform approach to building system support in the design phase of Industrialised house building (IHB). Thus, the main purpose of this paper is to explore the current state of the industrialised house building system and outline design support solutions for the building system from a product platform approach. Qualitative research was conducted by linking a single case company working with post and beam building system in combination with a literature review. Empirical data were gathered from five semi-structured interviews and two workshop sections. A cause-effect analysis has been conducted to realize the potential causes of challenges in the design process. The result illustrates a methodology with principle solutions that can be used as design support for the case company as a path forward and improve further from a product platform perspective.