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A green roof is a roof of a building that is partially or completely covered with vegetation and a growing medium, planted over a waterproofing membrane. It may also include additional layers such as a root barrier and drainage and irrigation systems. (The use of “green” refers to the growing trend of environmentalism and does not refer to roofs which are merely colored green, as with green roof tiles or roof shingles.) Container gardens on roofs, where plants are maintained in pots, are not generally considered to be true green roofs, although this is an area of debate. Rooftop ponds are another form of green roofs which are used to treat greywater. Also known as “living roofs”, green roofs serve several purposes for a building, such as absorbing rainwater, providing insulation, creating a habitat for wildlife, and helping to lower urban air temperatures and combat the heat island effect. There are two types of green roofs: intensive roofs, which are thicker and can support a wider variety of plants but are heavier and require more maintenance, and extensive roofs, which are covered in a light layer of vegetation and are lighter than an intensive green roof. The term green roof may also be used to indicate roofs that use some form of "green" technology, such as a cool roof, a roof with solar thermal collectors or photovoltaic modules. Green roofs are also referred to as eco-roofs, oikosteges, vegetated roofs, living roofs, and greenroofs. From Wikipedia under the
GNU Free Documentation License what are better alternatives to green roofs (the kind where you have plants on top of your roof)? Q. Are there other, perhaps better, alternatives to these types of roofs? Can you recommend whether or not I should get a green roof? Does the production, use, or decay of the plants/ trees produce substance that destroy the ozone? Asked by l s p@ msg me :)=] - Sun Jun 7 14:39:43 2009 - - 4 Answers - 0 Comments A. If you have a flat or nearly flat roof and if your roof was over-engineered to take the extra weight, green roofs are fine. Unfortunately, extremely few houses can be retrofitted. Green roofs almost always are associated with new construction. If you can't get a green roof, you can always increase the attic insulation or, if you have a flat roof, paint it to be reflective. Answered by oikos - Mon Jun 8 08:55:47 2009 What is the name of the building with the green roofs which stand near the World Trade Center sight? Q. I was just wondering because i was trying to point out Ground Zero on a picture but i don't know the name of the buildings. To be more specific here is a picture: Anyone know? Asked by I)y!@n - Thu Sep 25 21:21:42 2008 - - 1 Answers - 0 Comments A. It's the world financial center. Answered by MathIsFun - Sun Sep 28 04:51:21 2008 Where do the roots go in a green roof?
Q. I saw a green roof and it had trees everywhere on the roof, and inside the building there was a window and you could see the trees. There weren't any hills or anything on the roof, just some soil and trees and a little bit of grass. Where do the roots go? Asked by Courtney Brooks - Sun Dec 6 16:30:42 2009 - - 1 Answers - 0 Comments From Yahoo Answer Search: "Green Roofs"
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 english.peopledaily.com.cn Sat, 31 Jul 2010 07:31:19 GMT+00:00 space People's Daily Online Being recognized as a leader in building green roofs , the US city of Chicago benefits from its 600 roofs with about seven million square feet of green space ...  greenroofs.com Thu, 08 Jul 2010 17:26:28 GMT+00:00 Greenroofs.com Read Greenroofs .com's "The Brooklyn Grange Rooftop Farm Project" by Linda Velazquez in the Sky Gardens Blog of May 25, 2010; "High Above Queens, ...  guardian.co.uk Sat, 24 Jul 2010 23:05:00 GMT+00:00 The Guardian ... block is being built using straw bales, and there are six buildings with green roofs that slow down rainwater and grow vegetation as an insulator. ... From Google News Search: "Green Roofs"  earth-house.com 357px x 800px | 56.90kB [source page] Recognize Industry Leaders and Visionary Ideas In addition to our Green Roof Awards of Excellence program which recognizes six  greenexpander.com 345px x 460px | 44.00kB [source page] For an update on the location scroll down and check the comments Get involed share this news These icons link to social bookmarking sites where readers can share and discover new web  gardendesignonline.typepad.com 133px x 200px | 13.60kB [source page] Roofs for Healthy Cities a not for profit industry association that promotes the construction of green roofs throughout North America has announced the winners of its 2008 design awards All of this year s winners are quite spectacular whether they are intensive or extensive green roofs If you re not clear on the difference intensive green roofs are roof gardens with a From Yahoo Image Search: "Green Roofs"  huffingtonpost.com Travis Walter Donovan ue, 27 Jul 2010 14:01:45 GM Toronto is now requiring . green roofs. and they are beautiful. I've seen so many that rival anyone's backyard garden. It allows apartment dwellers a sense of community, too. They are so civilized in Canada. ... From Google Blog Search: "Green Roofs" |
Center for Green Roof Research at Penn State University
Seattle Daily Journal of Commerce : Green Building Starts at the Top
D.C. Greenworks