The MIRACLE project pioneers the development of a radiative cooling material, for the first time based on conventional concrete. The photonic meta-concrete (PMC) aims at having great potential in reducing urban heat island effects, building energy use, and global climate change mitigation, while offering lower upfront embodied emissions compared to state-of-the-art passive daytime radiative cooling materials. This study assesses the full life cycle of integrating six final PMC compositions onto a conventional Belgian flat and pitched roof. Single score life cycle embodied environmental impacts are assessed assuming a 60-year service life. The results reveal significant variations in environmental impact based on roof type and PMC composition. For pitched roofs, replacing conventional concrete tiles with the environmentally best performing PMC composition results in negligible environmental impact changes. Flat roofs show higher impacts due to the additional layer of PMC being applied on top of the existing structures. Micro additions in some of the PMC compositions significantly influence the material upfront impact, increasing maintenance and replacement impacts as well. The environmentally worst-performing composition increases the impact of the roof buildup by up to 18 times for pitched roofs and 15 times for flat roofs. The best-performing materials result in a 7% increase in life cycle embodied impact for flat roofs and a negligible change for pitched roofs.