Urban areas often experience temperature imbalances, resulting in higher temperatures than their rural surroundings, known as the Urban Heat Island (UHI) effect. This effect has adverse consequences such as heightened heat-related morbidity and mortality, amplified energy demands, aggravated water scarcity, and diminished urban living comfort. These effects are expected to intensify due to urbanization, making cities more susceptible to heat-related problems and increasing the number of inhabitants subjected to them, and climate change, increasing the frequency and Intensity of heatwaves occurring. As more than half of the world population lives in these urban areas, the imperative for effective mitigation strategies becomes paramount.

Addressing the complexity of the urban environment necessitates the collaboration of various disciplines to create effective UHI mitigation strategies. However, the integration and dissemination of multidisciplinary knowledge in this context are currently inadequate. This study bridges this gap by introducing a multidisciplinary typology-based framework employing a concurrent mixed-method approach, encompassing systematic literature reviews, semi-structured expert interviews, and multidisciplinary workshops in four distinct phases. These phases are specifically designed to identify, collect, integrate, and disseminate knowledge in this field, with applicability across diverse disciplines and contexts.

While the framework was first designed for the technologies at "Heat Square" of "The Green Village" in Delft, Netherlands, it is highly adaptable and can accommodate the inclusion of different technologies to enhance its impact. Given the increasing importance of addressing UHI challenges, this framework contributes to integrating and disseminating knowledge, supporting the creation of mitigation strategies and, therefore, contributing to creating livable and resilient urban environments in response to a changing climate.

Green roofs can play an important role in reducing problems in urban areas by being flexible, multifunctional and adaptable. These features of nature have proven effective in combating climate change and contribute to human well-being. Previous research has shown that green roofs can sometimes be cost-effective, but the benefits included in cost-benefit analyses are fragmented and an absence of a learning curve in the literature regarding green roofs is discernible. This research focuses on how to determine the economic value of the benefits of green roofs and what methodologies are used to do so. There is also a need to bridge the gap between research on costs and benefits and research on external costs of production materials. This research contributes to bridging this gap by creating a full life-cycle cost-benefit analysis of a green roof by mapping and analysing current methodologies. This research contributes to sustainable development and in it serves as a starting point to determine the utilisation of green roofs with the pursuit of sustainable urban development.