Changes

[[File:Blue roof concept.jpg|thumb|Conceptual diagram of flow control drain cover type blue roof/ rooftop detention]]

[[File:Blue roof concept.jpg|thumb|Conceptual diagram of flow control drain cover type blue roof/ rooftop detention]]

Blue roofs can be a very economical and low maintenance way to manage unwanted rainwater on a flat roof. For rooftop retention on moderately sloped roofs, a [[green roof] is going to perform better. On steeply sloped roofs, the best plan is going to be [[rainwater harvesting]], or some landscape integrated LID.   

Blue roofs can be a very economical and low maintenance way to manage unwanted rainwater on a flat roof. For rooftop retention on moderately sloped roofs, a [[green roof]] is going to be a better choice. On steeply sloped roofs, the best plan would be [[rainwater harvesting]], or diverting roof leaders to a landscape integrated LID.   

==Overview==

==Overview==