Ecopad is a business model created through the Design Thinking process that offers a sustainable and cost-effective construction material. The relevant social issue addressed is the limited accessibility to quality and sustainable construction materials for the D and E sectors in Metropolitan Lima. Therefore, recycled PET wool is proposed as an insulating material within a system of partition walls in homes with more suitable attributes, economic accessibility, and environmental sustainability. The value proposition demonstrates competitive advantages over the current market, surpassing brick walls in terms of economic efficiency, construction times, maneuverability, seismic safety, and sustainability. However, the success of the business model depends on overcoming the existing bias towards lightweight materials for partition walls. Thus, training, communication, and awareness campaigns...