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Old 02-22-2011, 09:51 AM
 
45,582 posts, read 27,187,569 times
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Green Roof Collapses in Illinois

The building, which was constructed six years ago, has a 240,000-square-foot roof, roughly half of which was “green,” Mr. Beaulieu said. The collapsed area represented about one-quarter of that, he said.

Many green roofs are planted with water-retaining sedums or low grasses, but Aquaspace’s was planted with native Illinois tall grasses. “It was pretty unique,” he said. “In the summer there’d be birds, bees and butterflies up there. It looks like you’re in a meadow.”


The problem is that they were multi-tasking their roof. They wanted a roof along with a meadow. If you want a roof, use roofing materials and build a roof.
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Old 02-22-2011, 10:04 AM
 
31,387 posts, read 37,048,770 times
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Quote:
Originally Posted by DRob4JC View Post
[url="http://green.blogs.nytimes.com/2011/02/18/green-roof-collapses-in-illinois/?ref=science"]The problem is that they were multi-tasking their roof.
Seems to me that "the problem" is poor design and construction.

Quote:
They wanted a roof along with a meadow. If you want a roof, use roofing materials and build a roof.
I guess it was silly to expect a deck to be a deck and landing strip.
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Old 02-22-2011, 12:21 PM
 
Location: On the Chesapeake
45,391 posts, read 60,575,206 times
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In MD green roofs are becoming required on new buildings, especially those with a large area. This is an outgrowth of current and oncoming regulations mandating that stormwater be managed and partially treated on-site prior to release.
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Old 02-22-2011, 01:08 PM
 
29,981 posts, read 42,934,013 times
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Flat roofs in areas receiving significant snowfall are ill-advised regardless of their politically correct "green" factor. The green factor likely kept anyone from considering that the snow needed to be removed.

Gravity: it is the law!
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Old 02-22-2011, 01:16 PM
 
Location: Southcentral Kansas
44,882 posts, read 33,268,118 times
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Quote:
Originally Posted by lifelongMOgal View Post
Flat roofs in areas receiving significant snowfall are ill-advised regardless of their politically correct "green" factor. The green factor likely kept anyone from considering that the snow needed to be removed.

Gravity: it is the law!
This roof is just as stupid in destruction and design as the suggestions that we provide jobs by painting roofs white for summer and then black for winter. How ridiculous can greens and their supporters be? Pretty stupid I think.
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Old 02-22-2011, 01:23 PM
 
Location: Southern California
15,080 posts, read 20,474,184 times
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More of an example of, and against, poor structural engineering than environmentally 'green' roofs.

[bridges collapse but we still make them]
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Old 02-22-2011, 01:36 PM
 
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Quote:
Originally Posted by roysoldboy View Post
This roof is just as stupid in destruction and design as the suggestions that we provide jobs by painting roofs white for summer and then black for winter. How ridiculous can greens and their supporters be? Pretty stupid I think.
These types of roofs can work in certain parts of the country but they are not smart construction in areas with historically heavy snow falls unless the roof-top landscaping allows for the removal of snow in the winter. There is a reason that in general, the further north one travels, the steeper the pitch on residential roofs.

Had the architect chosen a pitched roof with solar panels integrated it still would have been green and a rainwater collection system could still have been designed with water collected from the roof integrated into the landscape.

I suspect when all is said and done they will find construction and maint. did not match the recommendations of the consulting engineer.
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Old 02-22-2011, 02:28 PM
 
Location: Georgia, on the Florida line, right above Tallahassee
10,471 posts, read 15,833,234 times
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Quote:
Originally Posted by ovcatto View Post
Seems to me that "the problem" is poor design and construction.



I guess it was silly to expect a deck to be a deck and landing strip.

http://www.youtube.com/watch?v=wd99ziWFF7Q


http://www.youtube.com/watch?v=skpAWmt-QMQ&NR=1
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Old 02-22-2011, 02:33 PM
 
Location: Østenfor sol og vestenfor måne
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There are Green Roofs in Norway that are several hundred years old.
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Old 02-22-2011, 11:23 PM
 
29,981 posts, read 42,934,013 times
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Quote:
Originally Posted by ABQConvict View Post
There are Green Roofs in Norway that are several hundred years old.
Yes, however, they are not flat-roofs.

See photos at link:
The Grass Roofs of Norway | Amusing Planet
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