Scott DeWar
Prof. Emeritus-Supernatural Events/Countermeasure
hey,that's a top secret code name for the . . . . .uh . . . . .a uh project!
Now this is green energy
- Thread starter Kramodlog
- Start date
hey,that's a top secret code name for the . . . . .uh . . . . .a uh project!
Nellisir
Hero
The overall costs of green roofs pretty much make them a luxury/vanity project right now, unless you're looking at some kind of water filtration use (in which case you're probably still better off going with mechanical system). White roofs are considerably more efficient at reducing heat, specifically. Green roofs do have a nice multi-functional capacity (heat reduction, water filtration and absorbtion, pollution reduction, aesthetic considerations) but right now the added cost of construction, installation, and maintenance isn't offset sufficiently. :/
Doesn't mean I might not put one on the next playhouse I build, though.
Edit: There are times when the cost is worthwhile: New York City's stormwater system has a fabulously tiny margin (1/10th of an inch of rainfall, apparently) before it overloads and starts dumping sewage into the river. So NYC is very interested in anything that reduces runoff.
Last edited:
Scott DeWar
Prof. Emeritus-Supernatural Events/Countermeasure
I know that ny,ny and other large cities are recognizing rooftop garden - have been for a decade at least.
Nellisir
Hero
Yeah, our department head always does his studios in NYC, and roof-top gardens and/or other means of controlling runoff from a site are major factors. NYC wants more green, but they also have serious water runoff issues (as I said above) that are the real driver. Anything that traps water and keeps it out of the stormwater system is desirable.
Scott DeWar
Prof. Emeritus-Supernatural Events/Countermeasure
roof top gardens create oxygen, reduce runoff, if food gardens, then food too. three way win, unless you are
.
so is that why there are water towers, to trap water run off?
a mobster, then a 4th win with a way to make a body disappear
so is that why there are water towers, to trap water run off?
Nellisir
Hero
You mean water storage tanks on tops of buildings? Those are usually to provide pressurized gravity-fed water to a building, which is nice when the power goes out and particularly in case of a fire. They're typically refilled by pumps from city water. There's not enough regular and sustained rainfall to use it as a reliable water source for drinking water, I think. You can catch rainwater and direct it into a grey-water system to supplement city water for flushing toilets & etc; I think that's what most people talk about now. Whether or not it actually gets done is another question.
A blue-roof system is another option; you could just capture the rainwater and allow it to evaporate, or do a controlled release so the system isn't overwhelmed.
The storm drains and sewer systems in NYC are interconnected, so storm water goes to the sewer treatment plant. In a rain event, the treatment plants can't handle the additional volume, and it gets shunted straight out into the river. It's an old design; not desirable for obvious reasons.
"A significant blue roof pilot project intended to evaluate the potential of the systems for mitigating combined sewer overflow impacts was conducted between 2010 and 2012 by the New York City Department of Environmental Protection. The NYCDEP blue-roof projects are the first to utilize a novel passive blue roof tray design developed by Geosyntec Consultants which relies on the lateral transitivity of non-woven filter fabric for drawdown control in a full scale pilot. Monitoring of these systems has demonstrated their performance as an effective means for mitigation peak flows and alteration of timing in combined sewer systems." (Blue roofs, Wikipedia)
Scott DeWar
Prof. Emeritus-Supernatural Events/Countermeasure
Ah, got it, nice and handy to have I bet. gray water is a good idea, if you can be sure no one drinks from the stool.
Nellisir
Hero
If you're filling your bottle from the porcelain throne, I think it's kinda on you.
[video=youtube;R25Eflr0oJ8]http://www.youtube.com/watch?v=R25Eflr0oJ8&sns=em[/video]
But seriously, folks:
http://kxan.com/2014/02/28/texas-city-may-get-recycled-sewer-straight-from-tap/
Last edited:
Scott DeWar
Prof. Emeritus-Supernatural Events/Countermeasure
you mean like Bear G. would do? I thiking more like what a homeless person might do.
Similar Threads
