Summary of :Erika Orberndorfer, Green Roofs as Urban Ecosystems

This bullet point list will be expanded on in the future.

Green roofs are beneficial in many ways

• increase fire resistance
• increase sound insulation
• increase longevity of the roof itself
• keep buildings cooler
• reduce rain water run-off
• habitat for insects and birds

Stresses on the plants include

• moisture stress
• drought
• high temperatures
• light intensity
• high wind speeds

The plants used have adaptations

• low, mat forming growth
• succulent leaves
• tough twiggy growth

Green roof soil

• mineral based
• light expanded clay granules
• crushed brick

Main benefits

• storm water management
• energy conservation
• urban habitat

Erica Orberndorfer, Lundholm, J. et al. Green Roofs as Urban Ecosystems: Ecological Structures, Functions, and Services. BioScience, Vol. 57, No. 10 (November 2007), pp. 823-833.