This research paper presents part of a research project that develops the participative design of innovative solar control devices integrated in school architecture using low-cost tensed structures, composed of reused household waste and renewable energy systems. In consequence, these devices are designed to be built during workshops about waste management and sustainability by elementary and high school students and teachers. In general, this project aims to reduce the negative environmental impacts by educational architecture and, at the same time, increase students and teachers´ comfort levels and sustainability awareness. The specific case studies in this project occur in Spanish schools, which have a particular endemic problem in terms of user comfort due to lack of solar control. The main novelty of this project is the aforementioned design of solar control devices composed of household waste to be assembled during workshops by students and teachers. Although there have already been previous workshops in which students learn about school buildings, this project moves a step forward and involves students and teachers in the construction process of a solar control device. This article presents three solar control waste based device prototypes, the main steps followed to design and assess them and the first workshop.