Word: sedum
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...make a green roof, Werthmann and his team used different amounts of Rooflite—a mineral aggregate with a small amount of organic material that is commonly used in green roof projects—in addition to planting seeds and clippings of sedum, a low flowering plant that tolerates the harsh roof conditions well...
...upper curve is even more ingenious. It holds a vegetative roof?basically an overhead meadow. To build it, the contractors covered a plywood surface with a drainage mat, which was then layered with four inches of soil and vermiculite and planted with perennials like sedum and wild strawberry. The roof-meadow helps keep the house cool, controls storm-water runoff and gives neighbors up the hill something more interesting to look at than shingles. As a bonus, they get to watch the owners periodically weeding their roof...
...plant outside Detroit as environmentally friendly as possible. The result, which is scheduled to open next year, may not fulfill all McDonough's ideals, but it will be the greenest car factory ever. Thirty-five skylights will illuminate the 2.1 million-sq.-ft. area to save money on lighting. Sedum, an ivy-like plant, will cover the roof and help insulate the building while absorbing storm water, providing a natural habitat--and saving the company an estimated $35 million in construction costs and much more from lower energy use. Just as Henry Ford was the father of the Model...
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