Gbf08 natvik green roofs

728 views

Published on

Mathis Natvik presents the latest science behind green roofs, including plant selection and geographic specificity.

Published in: Design, Business, Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
728
On SlideShare
0
From Embeds
0
Number of Embeds
3
Actions
Shares
0
Downloads
19
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Gbf08 natvik green roofs

  1. 1. Advancing Green Roofs in Ontario: How we can become a leader in innovative, effective green roofs Prepared for: Prepared by: Toronto Mathis Natvik Green Building Hon.B.Sc. Festival LEED AP Sept 9-10, 2008 www.roofgarden.ca
  2. 2. Presentation Summary  Green Roof Myths  Technical and Functional Characteristics – “Need to know’s”  Values of Green Roofs  Green Roof Trouble Shooting  How to advance our green roof market – lessons from mature markets  Innovations to take Ontario into the lead
  3. 3. Green Roof Myths  Green roofs are leaky  Leaks are too difficult to find on green roofs  Green roofs are too heavy for most buildings  Green roofs are difficult to re-roof  Green roofs are high maintenance
  4. 4. Technical and Functional Characteristics – “Need to know’s”  Modern green roofs have evolved into sophisticated roofing systems with exceptional performance characteristics  The benefits of these functions vary based on building context
  5. 5. Values of Green Roofs Private:  Extended Roof Life  Low maintenance  Lower energy use for A/C on short buildings  Increased building value  Improved views over roof decks from upper floors  Enhanced public profile
  6. 6. Values of Green Roofs Public:  Improved views from other buildings  Reduction in urban heat island  Storm water mitigation  Increase biodiversity in urban environments  Reduce waste and pollution associates with re-roofing
  7. 7. Local Research - NRC
  8. 8. Green Roof Trouble Shooting Eliminating risks through sound design Design Must Prevent Following:  Fire and Wind lift  Loss or Displacement of Growing Medium  Handling Severe Storms (eg. hurricane)  Clogged Roof Drainage  Dead plants  Avoiding excessive irrigation and water demand  Acidification of Growing Mediums  Transition Zones between green and non-green roof areas
  9. 9. How to advance our green roof market – lessons from mature markets  Local research must quantify:  Life Cycle Cost Analysis  Technical Performance  Product Safety  Environmental Benefits  Social Benefits  Plant Performance Research  Growing Medium Performance  Research can support development of standards and policies  Standards will encourage major growth of green roof projects and lead to:  Local Product Development  Eliminating Insurance Barriers  Consumer confidence
  10. 10. Innovations to take Ontario into the lead  Green roof properly integrated into site building design  Taking advantage of views  Innovative use of water (rainwater harvesting, grey water use, etc)  Realizing plant potential for use on roofs through experimentation  Providing green space for occupants  Demonstrating Wildlife Potential
  11. 11. Innovations to take Ontario into the lead  Green roof properly integrated into site building design  Taking advantage of views  Innovative use of water (rainwater harvesting, grey water use, etc)  Realizing plant potential for use on roofs through experimentation  Providing green space for occupants  Demonstrating Wildlife Potential
  12. 12. Innovations to take Ontario into the lead  Encourage local industry to take lead and create supplies of green roof components  Encourage development of local plant production based on proven research  Demonstrate green roof design that is well integrated into building and site  Break into residential market and make it affordable
  13. 13. Innovations to take Ontario into the lead  Encourage local industry to take lead and create supplies of green roof components  Encourage development of local plant production based on proven research  Demonstrate green roof design that is well integrated into building and site  Break into residential market and make it affordable
  14. 14. Discussion Prepared for: Prepared by: Toronto Mathis Natvik Green Building Hon.B.Sc. Festival LEED AP Sept 9-10, 2008 www.roofgarden.ca

×