All green, yellow, red and blue rooftops also always contain roofing material. Fortunately, producers of roofing material – such as BMI – and large roofing companies – such as Consolidated – are innovating considerably with regard to sustainability. One example is the application of white EPDM sheeting to reduce urban heating, but the most important still-developing innovations are the recycling of bitumen and the slow move towards circular rooftops.