Viggo's `caravans are naff' thread prompted me to start this one...
if the manafacturer's were to actually start giving us a bit more choice as regards the exterior colour of caravans, how would we react - would we buy them or not ?
So, imagine you're off to buy a new caravan ....
if there was a choice of colour available in a caravan which met all your criteria in every other way, would you choose the white one or - another colour ?
and if you want a coloured caravan - whichcolour would you like ? !
------------- Fools and charlatans know everything and understand nothing . Anton Chekhov
well if they could not do it in leopard pattern then it will just have to be bright bright day glow pink like the dyno rod vans lol and why cos I am odd that why lol
------------- Dyslexic not stuped
It's nice to be important but its more important to be nice
It matters not what a caravan looks like, all that matters is that it does its' job. That is, to provide sleeping & cooking accommodation & also tow safely on't road. There is beauty in fuctionality & white is part of that fuctionality, it reflects heat in hot weather.
Also resale value comes into it. Its for this reason most large fleets run vans & trucks that are basically white & can be brought back to white when the signage is removed at disposal time. In fact leasing companies charge less for a white van than a coloured one.
If anybody wants a different looking caravan & is prepared to pay for the privilege both at purchase & trade in time then there are plenty of custom vehicle painting companies around.
Question: Why does the color Black absorb heat and White reflect heat? What
are the physical properties behind this fact? I have seen some Arabs where
Black robes in the desert -- this seems to defeat the purpose. Do they wear
them because black protects more against harmful UV rays?
---------------------------------------
First of all I have no idea why some Arabs wear black robes in
the desert. It seems counter-productive...but oh well, different strokes for
different folks. Anyway, the color that we observe (i.e. the color of a
particular object) is really only the light that is reflected from that
object. For example, a red ball appears red because when white light strikes
it, all of the light is absorbed except for the red frequencies/wavelengths
which are reflected into our eyes. A white light is made up of all visible
(and invisible) wavelengths all mixed together. So an object that appears
white, is reflecting all of the incident wavelengths and absorbing nothing (or
very little). A black object, on the other hand is absorbing all of the
incident wavelengths (along with all of their energies) which causes it to
heat up. That is why snow does not melt in cold weather even when the sun is
falling directly on it. All of the incident light energy is reflected away
and none (or very little) is absorbed.
=========================================================
Up-date July 2001
The explanation I heard for this is that the clothes themselves are
very loose (rather like Roman togas). The extra heat caused by the
black colour causes increased upward convection of the air between
the cloth and their body. This additional air circulation actually aids in
evaporation of persiration [sic] and thus results in better cooling.
so your white caravan is not really white - it just appears to be
------------- Caravanning is a way of getting a cheap holiday out of an expensive hobby
It matters not what a caravan looks like, all that matters is that it does its' job.
That's fair enough to say it doesn't matter to you, but it might matter to some other people - in fact, it does !
I think the appearance of things does matter to some degree at least to most people. It may not always be the most important factor when choosing something, but usually comes into it somewhere.
I have noticed though that generally `Blokey' blokes often like to pretend they don't care .....
------------- Fools and charlatans know everything and understand nothing . Anton Chekhov
Quote: Originally posted by Rune Caster on 11/10/2010
I take it you want white then Tenz
Vigo your link doesn't work
and I found this:
Quote:
Heat Absorption vs. Color
Question: Why does the color Black absorb heat and White reflect heat? What are the physical properties behind this fact? I have seen some Arabs where Black robes in the desert -- this seems to defeat the purpose. Do they wear them because black protects more against harmful UV rays? --------------------------------------- First of all I have no idea why some Arabs wear black robes in the desert. It seems counter-productive...but oh well, different strokes for different folks. Anyway, the color that we observe (i.e. the color of a particular object) is really only the light that is reflected from that object. For example, a red ball appears red because when white light strikes it, all of the light is absorbed except for the red frequencies/wavelengths which are reflected into our eyes. A white light is made up of all visible (and invisible) wavelengths all mixed together. So an object that appears white, is reflecting all of the incident wavelengths and absorbing nothing (or very little). A black object, on the other hand is absorbing all of the incident wavelengths (along with all of their energies) which causes it to heat up. That is why snow does not melt in cold weather even when the sun is falling directly on it. All of the incident light energy is reflected away and none (or very little) is absorbed. ========================================================= Up-date July 2001
The explanation I heard for this is that the clothes themselves are very loose (rather like Roman togas). The extra heat caused by the black colour causes increased upward convection of the air between the cloth and their body. This additional air circulation actually aids in evaporation of persiration [sic] and thus results in better cooling.
so your white caravan is not really white - it just appears to be
Exactly so.
How much a caravan heats up on the inside though will not neccessarily be greatly affected by it's being painted a dark colour - even as dark as black ! This will depend on many things such as... external skin material, cavity width, cavity insulation material, inner skin material, ventilation etc etc etc.
Experiments have shown that black absobs light (etc etc) but they have also shown that whilst it heats up more quickly, final temperature differences are minimal. In a climate such as we have here in the UK especially it's unlikely to make any noticeable difference to the temperature inside any well designed caravan.
Of course caravans, like cars, could be made available in other colours, just as cars are. They don't have to be either black or white, & if people indicated a desire for other colours than white I rather suspect black woiuldn't be the one most in demand.
And anyway, if the weather is that hot, why the hell would anyone want to sit inside their caravan ?..... ? !!!
ps Anyone ever seen a white awning ? Certainly there aren't many to be seen.
Post last edited on 11/10/2010 10:19:39
------------- Fools and charlatans know everything and understand nothing . Anton Chekhov
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Topic: Coloured caravans !!!!
