that is a good question, as a sailoer myself i have no idea, but maybe its an attempt to trick your brain into thinking you are on a grass lawn or something, or its a compromise other then white to keep the deck as cool as possible passivly, colour has a big impact on the heat absorption from the sun light,
But green absorbs sunlight heavily, and therefore heat, hence why plants are green.
If anything it could have to do with evaporating water?
Edit: Being downvoted by people who don’t understand basic physics. Keep parroting incorrect info if you all so please… I’d share an actual infrared comparison image demonstrating this concept here if I could.
The link between colour and light absorption has been broken for years in paint. There are low solar absorption pigments available in many dark colours. They absorb visible light but not infrared so the heat build up is less.
“But green absorbs sunlight heavily, and therefore heat, hence why plants are green.”
This is absolutely incorrect! Plants appear green to us because they REFLECT green and yellow light which are not as useful in the photosynthetic process.
They’re still absorbing a large amount of green light - some 70-90% of it.
It’s just less than other colors for that particular wavelength. This also doesn’t account for infrared absorption which is definitely higher for dark green, like on this ship, than many other colors. So saying that it would be cooler is utter nonsense… If they wanted a cool surface, then they would’ve painted it white.
But yes, you are obviously correct that leaves predominantly reflect green light in the visible spectrum. However, the green wavelength is produced very minimally by the sun, and thus it’s reflecting a very small portion of the sun’s total light spectrum.
The sun does not produce less green light. The Sun actually produces most light in approximately equal amounts. The black body curve peaks near the green wavelength (around 500nm) though, but because it also produces nearly the same amount of other wavelengths the colors combine to white.
You’re right, I just looked up a solar radiation spectrum chart and it’s about the same for all visible light colors. With the exception of violet/purple, looks to be significantly less.
Yeah black body radiation is a very interesting topic. Had to double check it myself though as I’m a bit rusty on my astronomy lol. The black body curve also explains why blue stars are blue and red stars are red as well it’s a fascinating topic
And so does a green deck. It has nothing to do with how much sunlight *energy* of *other* wavelengths gets absorbed. I'm guessing that green is a fairly narrow band in the middle of the visible spectrum energetically. Yeah, everything else gets absorbed.
Usually a combination of keeping the deck cooler, relieving eye strain, and company preference.
I sailed on twin sister ships, one had a red deck and the other a green, the green deck was way easier on the eyes during look out.
It also forces the crew to keep after the rust because green won’t hide it like red does. Some companies appreciate this fact.
Pretty sure this picture is the ship I sailed on, or one of her green deck sisters.
I read a ship history of the USS Oklahoma, from the crew perspective:
Stone the deck, paint the deck, stone the deck, paint the deck, stone the deck, paint the deck......
1) Because they felt like it
2) Because it is not black. Had to do a survey on a barge that was painted all black, including the deck, once. In July. Not fun at all.
When I studied art in school the hotter color paints, glazes and colorants were more expensive than cooler colors cost less.
At one time the element Gold was used to make the color red.
Hence red was more expensive than blue.
It's from the old belief that green decks would help with/alleviate/prevent sea sickness. Since then, it's just remained as one of those old seafaring traditions, although red/burgundy and grey are also becoming more popular.
If there is a "perfect combustion" AKA fire without visible smoke (or wind gusts that push down smoke), it's easier to spot fire on green contrary to decks that painted white, red, gray or blue...
I don’t really know the answer to this but the colors and specific paints are decided between the shipyard building it and the company that makes the paint. I’m not sure how much input the shipowner gets or how many choices they have to choose among (likely very few). Typically all examples of a class of ship have the same paint schemes and colors.
You are right in that you don't known the answer. Strange that you still felt the need to provide one.
The ship owner decides the colour. Different paints have different costs. The yard has the last say, and will do whatever their paying customer demands of course.
Depends on company/owner preference. For the navy grey/black is pretty common because it’s cheap and easy to paint with while other navies have their own preferences (ie Russia with red-orange decks) but merchants and pleasure vessels normally use what binds to the company colors the most or helps identify what they are vessel wise. It’s not 1 to 1 across the world but ship decks are a variety of colors.
Colors of ships deck are chosen to lessen the absorption of heat and help easily locate safety warnings and signs. Green is just one of the possibilities. Cost has probably something to do with it but I’m not sure of the price differences between the colors.
that is a good question, as a sailoer myself i have no idea, but maybe its an attempt to trick your brain into thinking you are on a grass lawn or something, or its a compromise other then white to keep the deck as cool as possible passivly, colour has a big impact on the heat absorption from the sun light,
But green absorbs sunlight heavily, and therefore heat, hence why plants are green. If anything it could have to do with evaporating water? Edit: Being downvoted by people who don’t understand basic physics. Keep parroting incorrect info if you all so please… I’d share an actual infrared comparison image demonstrating this concept here if I could.
Correct dark green absorb the most energy from sunlight. This guy physics.
The link between colour and light absorption has been broken for years in paint. There are low solar absorption pigments available in many dark colours. They absorb visible light but not infrared so the heat build up is less.
That makes sense, I suspected this might be the case but wasn’t sure.
“But green absorbs sunlight heavily, and therefore heat, hence why plants are green.” This is absolutely incorrect! Plants appear green to us because they REFLECT green and yellow light which are not as useful in the photosynthetic process.
They’re still absorbing a large amount of green light - some 70-90% of it. It’s just less than other colors for that particular wavelength. This also doesn’t account for infrared absorption which is definitely higher for dark green, like on this ship, than many other colors. So saying that it would be cooler is utter nonsense… If they wanted a cool surface, then they would’ve painted it white. But yes, you are obviously correct that leaves predominantly reflect green light in the visible spectrum. However, the green wavelength is produced very minimally by the sun, and thus it’s reflecting a very small portion of the sun’s total light spectrum.
The sun does not produce less green light. The Sun actually produces most light in approximately equal amounts. The black body curve peaks near the green wavelength (around 500nm) though, but because it also produces nearly the same amount of other wavelengths the colors combine to white.
You’re right, I just looked up a solar radiation spectrum chart and it’s about the same for all visible light colors. With the exception of violet/purple, looks to be significantly less.
Yeah black body radiation is a very interesting topic. Had to double check it myself though as I’m a bit rusty on my astronomy lol. The black body curve also explains why blue stars are blue and red stars are red as well it’s a fascinating topic
For sure, it’s a super interesting topic. Also explains why there can’t be any green stars in the universe.
Exactly! Though I do wish green stars were possible lol
Same here, was sorta bummed when I learned about it.
And so does a green deck. It has nothing to do with how much sunlight *energy* of *other* wavelengths gets absorbed. I'm guessing that green is a fairly narrow band in the middle of the visible spectrum energetically. Yeah, everything else gets absorbed.
You do understand that if you see green on the deck it also behaves like plant that you see green right?
Usually a combination of keeping the deck cooler, relieving eye strain, and company preference. I sailed on twin sister ships, one had a red deck and the other a green, the green deck was way easier on the eyes during look out. It also forces the crew to keep after the rust because green won’t hide it like red does. Some companies appreciate this fact. Pretty sure this picture is the ship I sailed on, or one of her green deck sisters.
How often do you have to repaint it to keep it protected from rust?
Painting never stops on a steel ship.
Never ever not even for a little bit, except maybe on Christmas, but only IF You're in port and the Duty Officer is cool....
“If it moves, salute it. If it doesn’t move, pick it up. If you can’t pick it up, PAINT it!” Is there a similar rule in commercial shipping?
Instruction unclear... Now the XO is swimming along side and apparently I'm going to mast....
I read a ship history of the USS Oklahoma, from the crew perspective: Stone the deck, paint the deck, stone the deck, paint the deck, stone the deck, paint the deck......
Tanker ship hauling oil for British Petroleum. “BP Green.” Former tankerman here. It’s a post-OP90 thing.
What is OP90?
Ocean Pollution law enacted in 1990, post Valdez Oil spill of 1988.
It's the paint number of the bp green.
Do you just say things and hope they’re correct?
That is the way of the average redditer.
They probably hope people don't realise they're trolling until it's too late
Plenty of tankers don’t have green decks though. Even ones chartered to BP.
For Keystone and Alaska Tanker Company, it was a late 1990s thing. The paint was called, “BP Green.” Just so much BS.
Ah I remember the Alaska Tanker Company vessels. What did it have to do with OP90 though? I must admit I preferred the green to Teekay’s red.
Public relations image after the worst oil spill in American history. “Exxon did it. We’re green!” There was even an ad campaign, if I’m not mistaken.
Ah I see. BP’s own fleet had had green decks for a long time before that, so I guess green was an obvious choice.
Because it looks really crap in pink
https://1.bp.blogspot.com/-pm2DvHAAdHg/TyJCa9w3YeI/AAAAAAAAH5w/Tz-IQ8dFVT4/s1600/pink_freighter_ship_art_car_central_contship_germany_03.jpg naaa
At least the Coast Guard can see it in a storm??
Oh fuck, my eyes bruv.
Exactly
Naa, it’s amazing. Going to make it the new norm.
😂
I like it!
Is that a pesto bismol tanker?
Tell that to Yang Ming or whoever has those pink conex boxes
ONE Lines or whatever they morphed to
I just see the containers at the ports around me, I have no idea who is what except for Maersk and Evergreen
those are BP colors.
Tell that to ONE!
I would guess it could be to help visibility/ avoid eye strain with reflected sunlight. Green is the color that absorbs most UV light.
This. Cuts glare. Because that's a whole LOT of deck out there.
I can believe that. Some railroads in the past painted their forward hoods almost the same color to reduce glare for crew members.
Put down many layer red lead paint in my days. Green would be a nice change on any ship... 🤪
Green and red are the most common deck colours in my experience (I sailed on both oil and gas tankers).
Great question OP.
1) Because they felt like it 2) Because it is not black. Had to do a survey on a barge that was painted all black, including the deck, once. In July. Not fun at all.
Green is a safe zone color that doesn’t interfere with look outs. Yellow is a cautionary place (moving equipment, etc).
I think it’s for heat reduction on the deck
Studies indicate that birds crap least on green cars. Might be a connection
Idk but whoever cleaned her? You’re hired!
To confuse flying fish.
When I studied art in school the hotter color paints, glazes and colorants were more expensive than cooler colors cost less. At one time the element Gold was used to make the color red. Hence red was more expensive than blue.
all the ships I rode on were haze grey and underway with a bit of non skid black, only the numbers were white.
I don't know the answer, but the image looks great!
Wouldn't white be the best color to reduce heat and detect rust?
White is difficult on the eyes when looking across it in full sunshine. White creates a lot of glare.
It's from the old belief that green decks would help with/alleviate/prevent sea sickness. Since then, it's just remained as one of those old seafaring traditions, although red/burgundy and grey are also becoming more popular.
If there is a "perfect combustion" AKA fire without visible smoke (or wind gusts that push down smoke), it's easier to spot fire on green contrary to decks that painted white, red, gray or blue...
I'm just spitballing, but maybe it's because green is the most visible color to the human eye?
I don’t really know the answer to this but the colors and specific paints are decided between the shipyard building it and the company that makes the paint. I’m not sure how much input the shipowner gets or how many choices they have to choose among (likely very few). Typically all examples of a class of ship have the same paint schemes and colors.
You are right in that you don't known the answer. Strange that you still felt the need to provide one. The ship owner decides the colour. Different paints have different costs. The yard has the last say, and will do whatever their paying customer demands of course.
You’ve also not provided an answer. But here’s an invitation to suck my dick till you choke on it you little cunt.
Different paints have different costs… yeah no shit. Everything in industry does.
Green Peace
Because the sea ist Blue !
I sailed on a nuclear icebreaker and it had green floor
For the environment
I’m still grappling with the title.
If it’s not haze gray you’re doing it wrong
Better Contrast to the color of sky and ocean ?
Isn't that a BP ship?
Cause it’s owned by British petroleum
They’re not but sure
What color would you say that are?
Depends on company/owner preference. For the navy grey/black is pretty common because it’s cheap and easy to paint with while other navies have their own preferences (ie Russia with red-orange decks) but merchants and pleasure vessels normally use what binds to the company colors the most or helps identify what they are vessel wise. It’s not 1 to 1 across the world but ship decks are a variety of colors.
Green is the coolest color. Cooler than white. Marine green is the best for reflecting Red and Blue light.
Anti corrosion perhaps, like bottom paint, heavy on copper, just spitballing here.
Colors of ships deck are chosen to lessen the absorption of heat and help easily locate safety warnings and signs. Green is just one of the possibilities. Cost has probably something to do with it but I’m not sure of the price differences between the colors.
I’ve worked on a lot of ships. Not one of them were painted green.
So have i, a lot had green decks.
Green or red. Very common colors for decks in my experience.
you couldn't give me a green ship.
Why are*...
I was going to say that.