Results 1 to 73 of 73

Thread: Green Roof in Edmonton

  1. #1
    C2E Hard Core Contributor
    Join Date
    Sep 2008
    Location
    Iqaluit, Nunavut
    Posts
    2,150

    Default Green Roof in Edmonton

    The roof of the Williams Engineering Building is going to have a new roof installed in early April this year. WEC is working with novaNAIT who will use the roof as a teaching and demonstration pilot project for the next couple years. NAIT students will have a few test plots on the roof to test different plantings.

    Eventually the roof will also have a weather station to help NAIT students correlate the changing weather to the green roof conditions.


  2. #2
    I'd rather C2E than work!
    Join Date
    Oct 2007
    Location
    Edmonton
    Posts
    6,751

    Default

    YES!

    hopefully this is an outrageous success and other roofs in the area get the same treatment

  3. #3

    Default

    Cool! Can these roofs be used to grow edible food also?
    youtube.com/BrothersGrim
    facebook.com/BrothersGrimMusic

  4. #4
    Addicted to C2E
    Join Date
    Jun 2007
    Location
    Far from home
    Posts
    687

    Default

    Absolutely Komrade, but that's an entirely different beast.

    Something like that would require among other things: sufficient depth of planting medium, appropriate irrigation, and necessary drainage, not to mention the adequate infrastructure to support people on the roof (if it is to be an inhabitable amenity space for example, the membrane must be treated differently. Additionally, simple things like access and fire / health /safety have to be considered. The rules are obviously much different if the space is only intended to be accesses for mechanical / maintenance purposes).

    A greenroof like the one depicted above could probably work with a relatively minimal amount of soil, or perhaps just a layer of rockwool / mineral fibre on top of the membrane. An 'intensive' system however would be far more substantial.

  5. #5

    Default

    Thats all good then. At least this is a first step to achieving the later.
    youtube.com/BrothersGrim
    facebook.com/BrothersGrimMusic

  6. #6
    I'd rather C2E than work!
    Join Date
    Nov 2009
    Location
    Edmonton
    Posts
    5,169

    Default

    The downtown Vancouver Library has a green roof, though there is no public access to it (stupid). Also one of the major hotels in the core have a section of green roof and grow their seasonal herbs and veggies. (I seem to recall it was the Four Seasons but don't quote me)

  7. #7
    C2E Long Term Contributor
    Join Date
    Feb 2006
    Location
    Downtown Edmonton
    Posts
    46,996

    Default

    impressive Channing...

    There might also be another 'green roof' coming soon to an office near yours as well.
    www.decl.org

    Ottawa-Edmonton-Vancouver-Edmonton

  8. #8
    C2E Hard Core Contributor
    Join Date
    Sep 2008
    Location
    Iqaluit, Nunavut
    Posts
    2,150

    Default

    I'd be excited to see that happen.

  9. #9
    I'd rather C2E than work!
    Join Date
    Jan 2007
    Location
    Edmonton
    Posts
    5,597

    Default

    So does this now the third or fourth green roof ?
    Partial or otherwise
    Manulife
    124 street building (102 ave)
    Stantec
    ??

  10. #10

    Default

    http://www.millcreekflexhomes.ca will have a tiny greenroof. Supplied by Soprema.
    www.decl.org

  11. #11

    Default

    The new Fort Edmonton Administration building is supposed to have a green roof when it is built. At least that is what the funding announcment said.

  12. #12
    I'd rather C2E than work!
    Join Date
    Nov 2009
    Location
    Edmonton
    Posts
    5,169

    Default

    Quote Originally Posted by Tiran View Post
    The new Fort Edmonton Administration building is supposed to have a green roof when it is built. At least that is what the funding announcment said.
    Being that it's Fort Edmonton and I am thinking of a historical context. isnt a Admiistative Building just a fancy name for a Sod Roofed house? Kidding! This is the prairies after all, if they re-worked that idea into a modern context it would be keeping in theme with the Park?

  13. #13
    Addicted to C2E
    Mr. Reality Check

    Join Date
    Mar 2006
    Location
    Edmonton, Alberta
    Posts
    11,758

    Default

    as an aside, this is really a "vegetative" roof, most of which are "green" but most "green" roofs aren't "vegetative", they are primarily reflective.
    "If you did not want much, there was plenty." Harper Lee

  14. #14
    I'd rather C2E than work!
    Join Date
    Feb 2006
    Location
    Edmonton, AB
    Posts
    7,587

    Default

    ^This is better than the asphalt or gravel roof alternatives.

  15. #15
    Addicted to C2E
    Mr. Reality Check

    Join Date
    Mar 2006
    Location
    Edmonton, Alberta
    Posts
    11,758

    Default

    Quote Originally Posted by ChrisD View Post
    ^This is better than the asphalt or gravel roof alternatives.
    i agree with you completely ChrisD - but so are the "non-vegetative" green roofs. as for whether vegetative is better than non, there are advantages to both in differenct circumstances. i was simply pointing out the difference, not taking sides.
    "If you did not want much, there was plenty." Harper Lee

  16. #16

    Default

    What is the difference between Vegetative and Green?

  17. #17
    Addicted to C2E
    Mr. Reality Check

    Join Date
    Mar 2006
    Location
    Edmonton, Alberta
    Posts
    11,758

    Default

    Quote Originally Posted by edmonton daily photo View Post
    What is the difference between Vegetative and Green?
    a green roof is generally considered to be a roof that is "environmentally friendly" as opposed to the traditional asphalt/tar and gravel technology ChrisD mentioned. examples would include the one that started this thread that use vegetation whether active or passive; cool roofs whose high reflectivity reduces the urban heat effect of solar radiation; roofs used to house solar thermal panels; and roofs used to house photovoltaic panels.
    "If you did not want much, there was plenty." Harper Lee

  18. #18

    Default

    Ahhh so a Green roof can be more than just vegetative. If I am understanding you correctly.

  19. #19
    I'd rather C2E than work!
    Join Date
    Nov 2009
    Location
    Edmonton
    Posts
    5,169

    Default

    Quote Originally Posted by edmonton daily photo View Post
    What is the difference between Vegetative and Green?
    I thought it was about $8.00 a plate depending on which restaurant you went to.

  20. #20
    Addicted to C2E
    Mr. Reality Check

    Join Date
    Mar 2006
    Location
    Edmonton, Alberta
    Posts
    11,758

    Default

    Quote Originally Posted by darrellinyvr View Post
    Quote Originally Posted by edmonton daily photo View Post
    What is the difference between Vegetative and Green?
    I thought it was about $8.00 a plate depending on which restaurant you went to.
    only in yaletown... in edmonton it's about $3.50 a plate depending on which restaurant you go to...
    "If you did not want much, there was plenty." Harper Lee

  21. #21
    First One is Always Free
    Join Date
    Oct 2008
    Location
    Downtown
    Posts
    40

    Default

    Quote Originally Posted by Tiran View Post
    The new Fort Edmonton Administration building is supposed to have a green roof when it is built. At least that is what the funding announcment said.
    You're correct. This was the initial plan for the administration building/point of entry at FEP, the building itself forming a kind of man-made hill that would blend seamlessly into the rest of the landscape (kind of like the Bentley plant in Crewe, England). However, costs escalated beyond what the city could afford and a different, entirely conventional vegetative roof-less plan was adopted. It's nearing completion now with move in slated for July.

    I'm excited to see what kind of success the vegetative roof on the Williams Engineering building enjoys...hopefully it proves that green/vegetative roofs are the way of the future and not just a component of a fleeting "green fad".

  22. #22
    First One is Always Free
    Join Date
    Jan 2008
    Location
    Edmonton, Alberta
    Posts
    15

    Default

    The roof of the rehabilitated Immigration Hall will have a green roof. Constructed last year, it will have its planting completed in late Spring 2010.
    I have never acquired drum technique for the sake of acquiring it rather as a solution to a particular problem.

  23. #23
    C2E Long Term Contributor
    Join Date
    Mar 2006
    Location
    Downtown
    Posts
    31,293
    “You have to dream big. If we want to be a little city, we dream small. If we want to be a big city, we dream big, and this is a big idea.” - Mayor Stephen Mandel, 02/22/2012

  24. #24
    C2E Hard Core Contributor
    Join Date
    Sep 2008
    Location
    Iqaluit, Nunavut
    Posts
    2,150

    Default

    Photos taken last week by a Williams Engineering Employee.




  25. #25
    C2E Continued Contributor
    Join Date
    May 2007
    Location
    Royal Gardens
    Posts
    1,694

    Default

    Thanks for the pictures!

    Makes the look down that much better for Telus building people and Hotel Mac guests who have windows facing it. Gets rid of a little grey.
    I would love to do that with our building, but alas I don't think the owner is interested.
    My antidepressent drug of choice is running. Cheaper with less side effects!

  26. #26
    I'd rather C2E than work!
    Join Date
    Oct 2007
    Location
    Edmonton
    Posts
    6,751

    Default

    all the concrete downstairs doesn't look so bad from that angle. Kudos to W.E on their green-roof. I wish Scotia Place would consider doing something like this over the main entrance to their building.

  27. #27
    C2E Long Term Contributor
    Join Date
    Feb 2006
    Location
    Downtown Edmonton
    Posts
    46,996

    Default

    Very impressive (initially) and I do look forward to how it "weathers" and what you learn from it.

    kudos to WE
    www.decl.org

    Ottawa-Edmonton-Vancouver-Edmonton

  28. #28

    Default

    Quote Originally Posted by Helmut View Post
    ...hopefully it proves that green/vegetative roofs are the way of the future and not just a component of a fleeting "green fad".
    If I was a betting man I would put my money down on it enjoying the same kind of legacy as other great ideas such as Poly-B piping and pine shakes.

  29. #29
    Addicted to C2E
    Mr. Reality Check

    Join Date
    Mar 2006
    Location
    Edmonton, Alberta
    Posts
    11,758

    Default

    Quote Originally Posted by Rick987 View Post
    Quote Originally Posted by Helmut View Post
    ...hopefully it proves that green/vegetative roofs are the way of the future and not just a component of a fleeting "green fad".
    If I was a betting man I would put my money down on it enjoying the same kind of legacy as other great ideas such as Poly-B piping and pine shakes.
    there's some - like the fairmont waterfront's herb garden in vancouver (which like the royal york in toronto also now has honeybee hives) - that have been in place quite successfully for a long time:

    "If you did not want much, there was plenty." Harper Lee

  30. #30

    Default

    ^ I am not suggesting that there won't be (or are not already) any success stories.

    I am am just hedging that as they become more popular and ultimately more dumbed down by the developers and designers, less maintained by the building owners and so on the more we will see the predictable problems and outcry over maintenance, replacement and damage repair costs.

    I am already shaking my head at lack of thought that is going into the details I am seeing on stuff being proposed. I don't expect it to improve much until the people responsible experience some problems first hand but when that happens the consumer confidence will already have been shaken.

    And none of that even touches on the extremely marginal benefits of have a green roof on the average project to start with.

  31. #31
    C2E Long Term Contributor
    Join Date
    Feb 2006
    Location
    Downtown Edmonton
    Posts
    46,996

    Default

    Added insulation, cooling, reduced heat island effect, new bird/insect haven, prettier, protects roof membrane...

    yup marginal benefits indeed
    www.decl.org

    Ottawa-Edmonton-Vancouver-Edmonton

  32. #32
    I'd rather C2E than work!
    Join Date
    Feb 2006
    Location
    Edmonton, AB
    Posts
    7,587

    Default

    ^Exactly, I mean, who wants to save on operating costs...

  33. #33
    I'd rather C2E than work!
    Join Date
    Oct 2007
    Location
    Edmonton
    Posts
    6,751

    Default

    WEM should green roof the whole building

  34. #34
    Addicted to C2E
    Mr. Reality Check

    Join Date
    Mar 2006
    Location
    Edmonton, Alberta
    Posts
    11,758

    Default

    Quote Originally Posted by ChrisD View Post
    ^Exactly, I mean, who wants to save on operating costs...
    i think this is one of those things that makes sense because it can be a "right thing to do" for the building's occupants and for those that look at it (much like good architectural design and urban edges also have "value" even though they don't have a "payback period") and for those that live in the cities that utilize them.

    however, i would doubt whether there is as much - if any - actual payback from a living/green roof as there would be from a well insulated highly reflective roof. and when you factor in the substantial additional roof loading that is needed not only for the soil but for the retained water and ice that accompanies it and the additional structural requirements that may be needed all the way through to the building's foundations and pay for them all you may never see a payback.

    that doesn't mean green roofs shouldn't be done, just to note that there is a tendency today to "oversell" things because they're "green" and "more efficient" and "they pay for themselves" when that shouldn't necessarily be the reason to choose them. because when they don't perform the way they were oversold or save money the way they were represented, they lose value that shouldn't have been promised in the first place when they should be just as valuable without them.
    "If you did not want much, there was plenty." Harper Lee

  35. #35

    Default

    Quote Originally Posted by Ander View Post
    WEM should green roof the whole building
    baby steps...

  36. #36
    I'd rather C2E than work!
    Join Date
    Jan 2007
    Location
    Edmonton
    Posts
    5,597

    Default

    Does anyone know if the green areas on the Manulife podium fall into the green roof catagory ?
    If so that has quietly been around for years

  37. #37
    C2E SME
    Join Date
    Dec 2009
    Location
    Downtown Edmonton
    Posts
    10,714

    Default

    Quote Originally Posted by Rick987
    such as Poly-B piping
    You realize that virtually every residential building built in Alberta is likely done with PEX right? It's basically the exact same thing, but with a slightly different plastic.

  38. #38
    C2E Long Term Contributor
    Join Date
    Feb 2006
    Location
    Downtown Edmonton
    Posts
    46,996

    Default

    Quote Originally Posted by Blueline View Post
    Does anyone know if the green areas on the Manulife podium fall into the green roof catagory ?
    If so that has quietly been around for years
    well there are green parts...

    but from my knowledge of it, it is more planter style no?
    www.decl.org

    Ottawa-Edmonton-Vancouver-Edmonton

  39. #39

    Default

    Quote Originally Posted by IanO View Post
    Added insulation, cooling, reduced heat island effect, new bird/insect haven, prettier, protects roof membrane...

    yup marginal benefits indeed
    You seem to have beaten me to my own response with what you wrote a couple posts later.

    As I said, 'marginal' benefits. Not 'no' benefits. Which is what you seem to basically agree with.

    To me it seems like a flavour of the month trend with, and if not done carefully, great potential for problems and added costs down the road.

  40. #40

    Default

    Quote Originally Posted by Marcel Petrin View Post
    You realize that virtually every residential building built in Alberta is likely done with PEX right? It's basically the exact same thing, but with a slightly different plastic.
    Yup, I'm well aware of what's used in the industry.

    Basically but not exactly is the key. If Poly-B wasn't problematic then there would be no 'basically...but with a slightly different plastic' and Poly-B would still be in use.

  41. #41
    C2E Long Term Contributor
    Join Date
    Feb 2006
    Location
    Downtown Edmonton
    Posts
    46,996

    Default

    ^.....

    " and if not done carefully, great potential for problems and added costs down the road."

    sorta like global warming if we dont make change now?
    www.decl.org

    Ottawa-Edmonton-Vancouver-Edmonton

  42. #42

    Default

    ^ Really? Green roofs will solve, make an impact, a dent, any difference at all on global warming?

    I would love an explanation on how that happens.

  43. #43
    C2E Long Term Contributor
    Join Date
    Feb 2006
    Location
    Downtown Edmonton
    Posts
    46,996

    Default

    ^it is part of a much larger solution to the above and if incorporated more often would positively contribute to a many faucets of our climate woes.
    www.decl.org

    Ottawa-Edmonton-Vancouver-Edmonton

  44. #44

    Default

    Quote Originally Posted by IanO View Post
    ^it is part of a much larger solution to the above and if incorporated more often would positively contribute to a many faucets of our climate woes.
    OK, but how?

    Even more specifically, 'how' as it applies to Edmonton and Edmonton's climate?

  45. #45
    C2E Long Term Contributor
    Join Date
    Feb 2006
    Location
    Downtown Edmonton
    Posts
    46,996

    Default

    refer to post 31.
    www.decl.org

    Ottawa-Edmonton-Vancouver-Edmonton

  46. #46
    You registered but never posted. username to be deleted.
    Join Date
    Jan 2010
    Location
    Edmonton since 2009
    Posts
    533

    Default

    Quote Originally Posted by Rick987 View Post
    Quote Originally Posted by IanO View Post
    ^it is part of a much larger solution to the above and if incorporated more often would positively contribute to a many faucets of our climate woes.
    OK, but how?

    Even more specifically, 'how' as it applies to Edmonton and Edmonton's climate?
    Worldwide, buildings produce approximaely 40% of total carbon emissions and 80-85% of a buildings energy usage comes from heating, cooling and hot water.

    Green roofs reduce the overall energy consumption of a building; while their effect may be more prominant in warmer climates, this does not preclude their benefits in a place like Edmonton. The amount of research in cold climate green roofs is relatively minimal, however, research is ongoing and is displaying the benefits of such roofs.

    Here is a couple links:

    http://www.sciencedaily.com/releases...1126141309.htm
    http://ec.europa.eu/environment/etap...greenroofs.pdf

    Also, while many may consider the benefits of a few green roofs to be a drop in the bucket, don't forget that it was the cumulative effects of many drops in the bucket that got us into our current dilemma.

  47. #47

    Default

    Quote Originally Posted by IanO View Post
    refer to post 31.
    Post 31 doesn't explain anything.

    No offence but it would appear that you have bought what the sales brochure is selling without actually digging into the details.

  48. #48
    Giving less of a damn than ever… Can't laugh at the ignorant if you ignore them!

  49. #49
    C2E Long Term Contributor
    Join Date
    Feb 2006
    Location
    Downtown Edmonton
    Posts
    46,996

    Default

    ^none taken for I have read the brochures, attended classes on green roof certification, and often investigate them to potentially apply to projects I work directly on.

    I have drank the koolaid, but the koolaid is legit.
    www.decl.org

    Ottawa-Edmonton-Vancouver-Edmonton

  50. #50

    Default

    Quote Originally Posted by IanO View Post
    ^none taken for I have read the brochures, attended classes on green roof certification, and often investigate them to potentially apply to projects I work directly on.

    I have drank the koolaid, but the koolaid is legit.
    Ok so given that I'll ask again, aside from the generic talking points made in post 31 how do green roofs address our climate woes in any significant way, particularily here in Edmonton?

    As a means to help address climate change through construction it's 90% gimick VS 10% effective (arbitrary percentages picked to make a point).

  51. #51
    C2E Long Term Contributor
    Join Date
    Feb 2006
    Location
    Downtown Edmonton
    Posts
    46,996

    Default

    ^principally in an R value increase in your roof insulation to reduce cooling needs in summer and more importantly heating needs in winter.
    www.decl.org

    Ottawa-Edmonton-Vancouver-Edmonton

  52. #52

    Default

    Quote Originally Posted by IanO View Post
    ^principally in an R value increase in your roof insulation to reduce cooling needs in summer and more importantly heating needs in winter.
    The thing is that the added R value from a green roof is less efficient per inch than the added R value from simply adding more insulation at the same depth.

    For example if you had an R-18 roof (usually the baseline roof R-value of the roofs referenced in in the green roof studies) and added a 6" deep green roof, you would reduce the heat loss by 25%. Not bad.

    Now if you added a further 6" of insulation to an R-18 roof you would reduce the heat loss by about 66%.

    Added to that there are no addition costs due to structural concerns as well as there are no irrigation concerns (which in itself is crazy when you consider the whole green roof concept is supposed to be about protecting the environment).

  53. #53
    C2E Long Term Contributor
    Join Date
    Feb 2006
    Location
    Downtown Edmonton
    Posts
    46,996

    Default

    Again, it is a component of a more comprehensive strategy that CAN be effective and if used in combination with other strategies will have more far reaching effects than added insulation.
    www.decl.org

    Ottawa-Edmonton-Vancouver-Edmonton

  54. #54

    Default

    Quote Originally Posted by IanO View Post
    Again, it is a component of a more comprehensive strategy that CAN be effective and if used in combination with other strategies will have more far reaching effects than added insulation.
    Perhaps and as I said I would love to see an explanation of what that is.

    You said "principally" it's an R-value issue. In isolation I disagree but maybe the total strategy has something that I am missing.

  55. #55
    C2E SME
    Join Date
    Dec 2009
    Location
    Downtown Edmonton
    Posts
    10,714

    Default

    Quote Originally Posted by Rick987 View Post
    Quote Originally Posted by Marcel Petrin View Post
    You realize that virtually every residential building built in Alberta is likely done with PEX right? It's basically the exact same thing, but with a slightly different plastic.
    Yup, I'm well aware of what's used in the industry.

    Basically but not exactly is the key. If Poly-B wasn't problematic then there would be no 'basically...but with a slightly different plastic' and Poly-B would still be in use.
    Most of the problems with poly-b were overblown in Alberta, really. There were very few failures because of the fittings used and our climate. Where there were a lot of failures was where plastic fittings were used, or in very warm climates like Arizona where the water lines were run in attic spaces where the temperature would exceed the rating of the pipe (pressure rating goes down as temperature goes up).

    Most local opposition to poly-b was simply "old-school" plumbers who simply didn't like flexible tubing in general, and for some decent reasons (looks like crap, easier to puncture during or after construction, and so on).

    http://www.municipalaffairs.gov.ab.c...s/ss/polyb.pdf

    Four failures in Alberta, all of which were installation and not material problems. Out of around 148,000 residences.

  56. #56
    First One is Always Free
    Join Date
    Sep 2010
    Location
    Edmonton
    Posts
    5

    Default World Green Roof Congress 2010

    Hi, if you really are into this stuff and if you want to know whats going on all over the world regarding green roofs, you may want to check the next websites.

    The first is about the World Green Roof Congress (WGRC) 2010 in London which just ended last sept 16. The second one is about the upcoming WGRC 2010 in Mexico city which will go from oct 7-9. The last one is about the Green Roofs for Healthy Cities, a Canadian organisation based in vancouver. Its name tells pretty much all what it is about.

    http://www.worldgreenroofcongress.com/

    http://www.amenamex.org/wgrc2010/index_en.html

    http://greenroofs.org/

  57. #57
    Plug C2E into my veins!!!
    Join Date
    Apr 2007
    Location
    Edmonton, Alberta, Westwood
    Posts
    16,325

    Default

    I noticed in Toronto that many of the condo buildings have large trees, shrubs, etc on the roof. I don't know if I would go so far as to call them green roofs... but it was very common to have LARGE trees etc up on the upper floors. Why haven't developers caught on to this here?

  58. #58

    Default

    Quote Originally Posted by etownboarder View Post
    I noticed in Toronto that many of the condo buildings have large trees, shrubs, etc on the roof. I don't know if I would go so far as to call them green roofs... but it was very common to have LARGE trees etc up on the upper floors. Why haven't developers caught on to this here?
    I believe that's the difference between what's called intensive vs extensive green roofs. If I remember correctly, intensive roofs can accommodate trees, shrubbery, etc, while extensive is just for grasses. Much different engineering requirements behind the two, and also much different uses.

  59. #59
    C2E Long Term Contributor
    Join Date
    Feb 2006
    Location
    Downtown Edmonton
    Posts
    46,996

    Default

    Quote Originally Posted by etownboarder View Post
    I noticed in Toronto that many of the condo buildings have large trees, shrubs, etc on the roof. I don't know if I would go so far as to call them green roofs... but it was very common to have LARGE trees etc up on the upper floors. Why haven't developers caught on to this here?
    City policy stipulates that there.

    http://www.toronto.ca/greenroofs/policy.htm

    We do not.
    www.decl.org

    Ottawa-Edmonton-Vancouver-Edmonton

  60. #60
    Addicted to C2E
    Mr. Reality Check

    Join Date
    Mar 2006
    Location
    Edmonton, Alberta
    Posts
    11,758

    Default

    Quote Originally Posted by IanO View Post
    Quote Originally Posted by etownboarder View Post
    I noticed in Toronto that many of the condo buildings have large trees, shrubs, etc on the roof. I don't know if I would go so far as to call them green roofs... but it was very common to have LARGE trees etc up on the upper floors. Why haven't developers caught on to this here?
    City policy stipulates that there.

    http://www.toronto.ca/greenroofs/policy.htm

    We do not.
    maybe because our climate and winter winds combined with a lack of humidity make it almost impossible for them to survive here?
    "If you did not want much, there was plenty." Harper Lee

  61. #61
    C2E Long Term Contributor
    Join Date
    Feb 2006
    Location
    Downtown Edmonton
    Posts
    46,996

    Default

    ^or perhaps the designers use inappropriate material and are not as conscious of the above as they should be in orientation and design?
    www.decl.org

    Ottawa-Edmonton-Vancouver-Edmonton

  62. #62
    Plug C2E into my veins!!!
    Join Date
    Apr 2007
    Location
    Edmonton, Alberta, Westwood
    Posts
    16,325

    Default

    Quote Originally Posted by kcantor View Post
    maybe because our climate and winter winds combined with a lack of humidity make it almost impossible for them to survive here?
    The winds in downtown Toronto are a lot stronger than they are here.

  63. #63
    grish
    Guest

    Default

    Quote Originally Posted by etownboarder View Post
    Quote Originally Posted by kcantor View Post
    maybe because our climate and winter winds combined with a lack of humidity make it almost impossible for them to survive here?
    The winds in downtown Toronto are a lot stronger than they are here.
    and it is a matter of choice of the tree or shrub you want to put up there. my guess a large oak tree wouldn't work, but a type of a spruce might.

  64. #64
    Plug C2E into my veins!!!
    Join Date
    Apr 2007
    Location
    Edmonton, Alberta, Westwood
    Posts
    16,325

    Default

    Quote Originally Posted by grish View Post
    Quote Originally Posted by etownboarder View Post
    Quote Originally Posted by kcantor View Post
    maybe because our climate and winter winds combined with a lack of humidity make it almost impossible for them to survive here?
    The winds in downtown Toronto are a lot stronger than they are here.
    and it is a matter of choice of the tree or shrub you want to put up there. my guess a large oak tree wouldn't work, but a type of a spruce might.
    I was really surprised at the size of some of the trees and the variety.

  65. #65
    grish
    Guest

    Default

    I meant here in edmonton. if the objection is the wind and humidity for tree survival, then find a tree that is used to these conditions.

  66. #66
    Addicted to C2E
    Mr. Reality Check

    Join Date
    Mar 2006
    Location
    Edmonton, Alberta
    Posts
    11,758

    Default

    Quote Originally Posted by grish View Post
    I meant here in edmonton. if the objection is the wind and humidity for tree survival, then find a tree that is used to these conditions.
    you find one, i'll give it a home.
    "If you did not want much, there was plenty." Harper Lee

  67. #67
    I'd rather C2E than work!
    Join Date
    Feb 2006
    Location
    Edmonton, AB
    Posts
    7,587

    Default

    Exhibit A - Manulife Place rooftop. Those trees have survived our 'winters' and our lack of 'humidity' for almost 30-years.

  68. #68
    Addicted to C2E
    Mr. Reality Check

    Join Date
    Mar 2006
    Location
    Edmonton, Alberta
    Posts
    11,758

    Default

    Quote Originally Posted by ChrisD View Post
    Exhibit A - Manulife Place rooftop. Those trees have survived our 'winters' and our lack of 'humidity' for almost 30-years.
    relatively sheltered podium/patio roof deck ChrisD - far from what they would experience at the top of manulife...
    "If you did not want much, there was plenty." Harper Lee

  69. #69
    Plug C2E into my veins!!!
    Join Date
    Apr 2007
    Location
    Edmonton, Alberta, Westwood
    Posts
    16,325

    Default

    In T.O., many of the condo buildings were terraced, so the big trees started at maybe the 4-6 floors and went all the way up to the top. Most of these buildings were 7-20 floors in height.

  70. #70
    grish
    Guest

    Default

    Quote Originally Posted by kcantor View Post
    Quote Originally Posted by grish View Post
    I meant here in edmonton. if the objection is the wind and humidity for tree survival, then find a tree that is used to these conditions.
    you find one, i'll give it a home.
    How about the Alpine Larch and the White Birch?

    PS Feel free to include a bit of shelter if you wish. There are no requirements one way or another. Examples of trees in toronto are usually sheltered as well.

    So, which roof-top or building side should I keep my eye on to see one of these trees?

    ps as a bonus, these trees tend to have wide, but not deep root system and birch in particular likes sandy soils. I think that is well suitted to being planted on buildings. You're welcome
    Last edited by grish; 26-09-2010 at 09:37 PM. Reason: spelling

  71. #71

    Default

    Green roof does not necessarily mean trees. Hearty shrubs are just fine.
    I think of art, at its most significant, as a Distant Early Warning system that can always be relied on to tell the old culture what is beginning to happen to it. —Marshall McLuhan

  72. #72
    I'd rather C2E than work!
    Join Date
    Feb 2006
    Location
    Edmonton, AB
    Posts
    7,587

    Default

    Quote Originally Posted by Dialog View Post
    Green roof does not necessarily mean trees. Hearty shrubs are just fine.
    Exactly (see Stantec north atrium as Exhibit B).

  73. #73

    Default

    Taking the paddles to this dormant thread, since several buildings in town now have green roofs. I was quite surprised by some of them.

    https://www.edmonton.ca/city_governm...reen-roof.aspx

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •