HORT 2134 Lecture Notes - Lecture 8: Urban Heat Island, John Forrest Dillon, Green Roof
20 Nov 2016
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Unit 8: green roof and vertical greening basics. Lecture - introduction to green roofs & vertical greening a. Moss grows on roofs naturally - still technically a green roof. Fun fact: germany is the leader of green roofs ii. Extensive green roof - over six inches of media, requires irrigation a) b) c) So what"s it like on an extensive green roof? i) Thin media, mostly mineral media, fractured media (little or no capillary action), long periods of dry and heat, winter wet, windy, low maintenance d) What kind of plants are best for an extensive roof? i) ii) iii) iv) v) vi) vii) viii) ix) Low weight, low inputs, low nutrient outfall, low maintenance, limited design options, has become standard for extensive roofs. Intensive green roof - three to six inches of media, non-irrigated a) b) Heat island effect - temperatures are elevated in cities v. Horticulture; plants and the urban environment page 1 a)
