Which strategy is considered appropriate for storm water management?

The selection of a 100% vegetated roof is aligned with stormwater management strategies because this approach effectively reduces the volume of stormwater runoff by absorbing rainwater. Vegetated roofs utilize soil and plant materials to retain precipitation, which mitigates the risk of flooding and helps to manage water quality by filtering pollutants. This strategy not only helps in managing stormwater but also contributes to the overall sustainability of the building, providing additional benefits like improved insulation and increased biodiversity within urban environments.

In contrast, barrel catchment systems may collect rainwater but are typically not sufficient alone for comprehensive stormwater management as they do not address runoff from larger storm events. Concrete drainage basins can facilitate water movement but often lead to increased runoff and potential contamination, as they do not absorb or filter water effectively. Similarly, paved parking lots generally exacerbate stormwater issues by increasing impervious surfaces, leading to higher volumes of runoff and polluting local waterways.