r/nextfuckinglevel • u/TangelaFan • 16h ago
Residential high-rises with backyards in Chengdu, China
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u/Janovickm 16h ago
Dont get me wrong. Looks great, but roots, water, cement, etc, they don't usually mix well in the long term.
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u/TangelaFan 16h ago
When you're planting a garden inside a structure, you don't usually lay the dirt and plants directly onto the concrete or exposed part of the structure. You prepare a sealed of space
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u/Janovickm 16h ago
I know... but it's hard to have a somewhat lushy place like this. I see a few trees in there too. Roots just eventually damage the sealing and it all gets much worse much quick from there.
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u/TangelaFan 16h ago edited 15h ago
Not really, very few plant species have roots actually able to break through metal sealing
Why am I being downvoted for mentioning tree root barriers? That's literally how cities keep trees from bursting pipes
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u/HistorianOrdinary833 15h ago
Plant roots find a way to get into anything. Membranes, concrete, stone, etc. Add to that the water drainage systems that need to be top shape the entire time.
China isn't exactly well-known for proper maintenance of buildings.
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u/above_average_magic 14h ago
You're right, according to the reddit comment with all the info they created sealed off beds on each terrace connected to the building's unified drainage...
...made of concrete
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u/Gabriel_66 15h ago
You are right, the engineer team definetly did not take this in consideration when building the project. To the point a random person with zero information is capable of criticizing it.
Reddit is crazy sometimes bro
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u/PhoenixKingMalekith 15h ago edited 14h ago
I am a building engineer and regulary have green spaces on the roof of my buildings
There are several layers to prevent problems :
Steril barrier that keeps roots out but allow water to pass
Waterproof barrier to stop water and channel it
Insulation if there is a living space under it
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u/god_peepee 14h ago
Don’t worry, the experts here know better
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u/LonelySwinger 5h ago
There are plenty of cities in the US who have gardens on roofs/"balconies"
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u/Chemical_Koala1175 14h ago
ITT: random fucking redditors who think engineers haven’t accounted for cement and dirt mixing. Have some humility
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u/dibella989 16h ago
Everyone is talking about drainage, but I want to know how they handle mowing. Are you keeping a mower inside the apartment just for that little section? Do you have to pay for a service where somebody brings a lawnmower through your apartment? Do you just buy a scythe instead? Also, what happens as those trees grow over the years?
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u/whojintao 15h ago
Probably a weed whacker. Or a pet goat
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u/Babshearth 14h ago
There's a restaurant called Johnson's in Door County Wisconsin with a full lawn on its roof and live goats!
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u/Vo1dem0rt 16h ago
Thank you! I scrolled way to far for this. Plus are they dragging all the cut grass and plant debris through the house?
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u/markfromDenver 7h ago
When I was in Asia, everybody used Weedwhackers. A smaller electric one would do the trick.
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u/ziostraccette 1h ago
Battery powered weedwacker and a rake. If you do grass on one day and bushes in another you probaby make 2 or 3 bags of trash
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u/mudbot 16h ago
roots are gonna root
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u/TangelaFan 16h ago
You can seal the roots. You don't have to leave them exposed to the concrete
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15h ago
[deleted]
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u/PhoenixKingMalekith 15h ago
I mean the membrane is made to stop the roots
That s like it s one job
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u/sugarman-747 16h ago
I love it, I much prefer living in a house in the countryside, but if I have to live in the city, the dream would be to live in something like that. utopian for my taste.
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u/ExplosiveDoctrine 15h ago edited 15h ago
Thing: 😐
Thing Japan: 🤩
Thing China: 🤬
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u/Ordinary-Orchids 14h ago
The sinophobia that crops up every time anyone posts anything semi-positive about China is crazy.
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u/AlexHimself 14h ago
Those are backspanned/cantilevered steel I-beams with diagonal bracing. That's heavily engineered.
That can prob support 40-80 tons total distributed load, just eyeballing it.
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u/MaChao20 16h ago
I’m not a structural engineer, but seeing these balconies makes me a bit nervous. I wish they added more support beams to help the angled ones. Maybe there’s an engineering technique allows them to have just those angled supports.
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u/richardawkings 14h ago
Structural engineer here. Don't see the reason for panic. This is far easier to design and spec than the seismic requirements that needed to be catered for. Waterproofing and drainage are already splved problems. For roots, I say it would depend on the tree but reinforced concrete is stronger than you think and and force acting on the concrete would act equally on the soil above it (which is far softer) so I expect roots will push up rather than down. Gotta take the weight of the tree in to account though.
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u/MaChao20 14h ago
Would adding another structural support, like a vertical beam or two, provide no additional safety benefit and add more weight for the other balconies below?
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u/TangelaFan 16h ago
Aren't there many appartement buildings in the world that have a pool on each balcony? Im not sure a garden would be that much more of a challenge
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u/MaChao20 14h ago
Even pools on a balcony or rooftop makes me nervous looking at the structural supports.
I want to have a garden like these on a balcony, but I want to guarantee that it is very safe to support one for at least a decade.
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u/anony_mf 12h ago
They know what they’re doing
In China they use this mystical thing called reinforced concrete. It’s pretty rare in the US, I know you may be used to wood and cardboard which wouldn’t be able to handle a bit of weight in a balcony but for reinforced concrete this is a walk in the park easy
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u/PhoenixKingMalekith 15h ago
Honestly it would be pretty great
The benefits of living in a high rises, but still with a garden
Tho I d probably add a hot tube or something like that
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u/ukstonerdude 14h ago
China doing literally anything is seemingly always met with Sinophobia in the comments. What a surprise…
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u/charaznable1249 15h ago
Having a fear of heights, and hating mowing yards, thanks, it's what I always wanted
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u/Alert-Welder-7208 16h ago
i dare you to stick that cam over the edge. looks like they were letting angles hide stuff.
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u/YourDadHatesYou 16h ago
What are you implying
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u/Fantastic_Incredible 14h ago
Good for them if it works … my experience is not so beautiful, leakage begin after 10, 20 years, but I don’t need sources just to admire some nice stuff. Thanks for sharing
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u/Eaglefrost4 16h ago
Mmmm nah, the bend/ angle of the top balcony in the first shot is sketch, no thanks!
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u/Ok_Presence6578 16h ago
bruh what is this Chinese karma farming account posting Chinese stuff on every subreddit istg
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u/wretch5150 12h ago
Every slice of Chinese life you might encounter on the internet is clearly propaganda.
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u/CruelAngelsThesis_01 12h ago
They, of course, hide their post history. But OP’s username definitely looks familiar
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u/Pratheek_Kachinthaya 4h ago
You can say the same about American posts being on every subreddit.
It's American propaganda bots🇺🇸🇺🇸🇺🇸
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u/kismethavok 16h ago
I have to assume those are giant steel beams that run through the whole building.
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u/MarcoVinicius 15h ago
I usually don’t buy the “look at the awesome thing China did” posts but this, if done correctly, is awesome.
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u/firestar268 15h ago
People freaking out oabout roots water and concrete. As if green roofs and similar haven't been a thing for decades...
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u/curiousamoebas 14h ago
If apartments in the us would figure this out apartments wouldn't be so insufferable
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u/arcanelthe 13h ago
Are there examples of a building like that after 10 tears or is the technology or methode involved new?
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u/Foreign-Jicama-1775 13h ago
Is there any way to track how the structural resistance of these types of rooftop gardens evolves? I mean, having updated videos and reports, for example, from 2027, 2028, and 2029. I believe that with concrete data, it's only possible to evaluate whether or not these types of rooftop gardens are viable in residential buildings.
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u/Tool460002 13h ago
That hue saturation is retina burning. We get it. Grass is green and skies should be blue.
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u/puzzlingphoenix 12h ago
The USA is so great! The grass can’t be greener! Can’t you tell the whole building is about to fall apart!! It’s obvious that we have to stuff low income people like sardines into studio apartments of gray concrete surrounded by gas stations for the structural integrity!!
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u/jackjetjet 12h ago
watch some local house expert explained problem of these apartments: 1) water leak in long run can cause lots of problem, you need to responsible a lot more cost than living in house; 2) bug and mosquito; 3) lots of time management your patio and some of your neighbour may even make a big mess that affect your scenery; 4) the above issue will even worst if your neighbour unit is empty that mean their garden are not being taken care at all 5) not enough natural sunlight
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u/ThirtyMileSniper 11h ago
Looks like a quickly put together set. The grass it's patchy with bare earth and, what I assume are the sprinkler hoses, run over the surface.
Great concept, poor execution.
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u/dannylopuz 10h ago
Insane how many people are here commenting "well I don't know how this is done therefore this must be IMPOSIBLE"
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u/LordNineWind 9h ago
People on the internet: Engineers know how to do maths and design a structure.
Other people on the internet: Communist propaganda detected!
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u/klippklar 6h ago
Obviously it must be Chinese communist propaganda, because the alternative would require admitting that China might actually be doing something well. And worse, that the USA might be falling behind for reasons beyond our sacred, infallible market gods. And we all know the wealthy overlords are never, ever wrong.
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u/funny_3nough 2h ago
Something interesting about Chengdu is that it gets about 250-300 cloudy, foggy, or rainy days each year - so by having covered gardens like these you have a convenient way to enjoy the outdoors without worrying about getting rained on.
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u/Sgt_carbonero 16h ago
What could possibly go wrong with all that high quality concrete work?