Changes

Total life cycle cost estimates for the extensive 4 inch deep sedum mat [[Green roofs| green roof]] design configuration is ($763,168), making it one of the most expensive LID BMP options. This is due to the costs of expensive components such as waterproofing membrane and flashing, roof insulation required, drainage layer and filter cloth, growing medium, the plants themselves and crane requirements for construction.<br>

Total life cycle cost estimates for the extensive 4 inch deep sedum mat [[Green roofs| green roof]] design configuration is ($763,168), making it one of the most expensive LID BMP options. This is due to the costs of expensive components such as waterproofing membrane and flashing, roof insulation required, drainage layer and filter cloth, growing medium, the plants themselves and crane requirements for construction.<br>

===No Infiltration===

===Extensive 4 inch deep sedum mats===

[[File:Layers green roof.PNG|thumb|right|500px|Generalized cross-section view of a green roof showing key components and common layers that make up this LID BMP (TRCA, 2018).<ref name="example1"> TRCA. 2018. Fact Sheet - Inspection and Maintenance of Stormwater Best Management Practices: Green Roofs. https://sustainabletechnologies.ca/app/uploads/2018/02/Green-Roofs-Fact-Sheet.pdf</ref>]]

[[File:Layers green roof.PNG|thumb|right|500px|Generalized cross-section view of a green roof showing key components and common layers that make up this LID BMP (TRCA, 2018).<ref name="example1"> TRCA. 2018. Fact Sheet - Inspection and Maintenance of Stormwater Best Management Practices: Green Roofs. https://sustainabletechnologies.ca/app/uploads/2018/02/Green-Roofs-Fact-Sheet.pdf</ref>]]