Meeting Minutes - US Department of State

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Go ahead. We're also looking at vegetative
roofs. And that is similar to the wind in a little
bit of way that you know, it's not applicable
everywhere. You have to have a certain amount of
climate conditions to make it really feasible. You
don't want to just build it anywhere. It does have
an energy savings of about 90 cents per square
meter. So it's a good energy saver. It's good in
terms of reducing our storm water infrastructure
costs. It has a lot of benefit, including
increasing the lifecycle or the life of the roof
itself. By taking the sun off of the roof, you
actually maintain your membrane longer.
These are extensive roofs, rather than
intensive roofs. It used to be in the 70s we would
put two feet of roof on top of the roof and plant
trees and all kinds of stuff. Now it's really down
to three, four, six inches, you know, of soil. It's
very similar to the ballasted roofs that we do
nowadays. The system is very much the same.
Okay, next. The last slide, yes, we've
done this matrix and the vegetative roof study is
complete now and we're starting to apply it. We
have a couple small green roofs, but Oslo, which is
coming up, we will definitely have a green roof on
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