In ReWin project a demonstrative project called »From old hayrack into new wooden window« will take part in which we will demolish old “toplar” hayrack in Sedej valley nearby Žiri town. Wooden parts will be analysed and used for research and development of new wooden windows made of discarded wood. ReWin project represents a continuation of research activities which were done in the scope of CaReWood European project and other R&D activities in collaboration with University of Primorska, University of Ljubljana and foreign partners (Fraunhofer WKI). The aim of ReWin project is to conclude and finish the development of wooden window made of old discarded wood in collaboration with University of Ljubljana, University of Primorska and CoE InnoRenew, and offer a new family of wooden window to the market. An entire project will be updated and communicated at blog.