SUV corrugated roofs

Indricotherium

I have noticed recently that SUV's tend to have a corrugated effect on their roofs like a van.

Is this purely astetic, to make them look a bit more rugged, or is there some practical reason for it.

Honda hrv has it as does one of the Hyundai's.

biko

I would guess it's just for show. The ridges aren't supporting anything like a rack.

bonzodog2

It may stiffen it slightly, to perhaps reduce noise, doubt if it would make it much stronger.

colm_mcm

Just styling nonsense really. The roof of the Nissan micra has a mad crease on it too. They went to q lot of effort on the roof and ran out of time it seems.

Nekarsulm

I thought it was to help prevent "boom" type noises?
The creases stiffen up the sheet of steel which makes the roof.

JBokeh

I always thought it was to stop it from flexing and making a sound like the rolf harris song about kangaroos, land rovers with the panel sides are shocking for booming in the wind.

I think it is also because a lot of 4x4s have a separate chassis so the pillars and roof wouldn't be as structural as the ones in a monocoque car, and maybe because in an offroad situation there could be a tree sliding along it

colm_mcm

opel combo and mitsibishi eclipse had this on the side

winnie the schtink

they are called swage lines ,ti stiffen the panel

porsche boy

colm_mcm wrote:

Just styling nonsense really. The roof of the Nissan micra has a mad crease on it too. They went to q lot of effort on the roof and ran out of time it seems.

This 'design' had to be added to the roof as pre production models had issues with the roof flexing. Thin metal saves money, to hell with build quality. Thanks Renault.

Cantona's Collars

colm_mcm wrote: »

Just styling nonsense really. The roof of the Nissan micra has a mad crease on it too. They went to q lot of effort on the roof and ran out of time crayons it seems.

FYP.

0lddog

Not the first with the idea


https://en.wikipedia.org/wiki/Citro%C3%ABn_H_Van#/media/File:Citro%C3%ABn_Typ_H_1981_grey_vl_TCE.jpg

hi5

Its for strength and rigidity to prevent oil canning.

CJhaughey

Styling, Landcruisers don't have it and don't suffer any boomy noise inside.
Monocoque Pajero's don't have it and don't suffer any boomy noises,
Conclusion its not necessary to have it, but it looks rugged and cool so its done to make crossovers look tough.

biko

Yeah I don't see any other reason than styling, on a car.
I didn't find any sources to tell me otherwise either, not that I looked very hard..

visual

Indricotherium wrote: »

I have noticed recently that SUV's tend to have a corrugated effect on their roofs like a van.

Is this purely astetic, to make them look a bit more rugged, or is there some practical reason for it.

Honda hrv has it as does one of the Hyundai's.

there is a number of reasons.
they have to pass roll over testing and roof not collapse when upside down.
corrugated makes the sheet of metal stiffer especially if the roof is flat and most SUV have flat roofs like vans. Plus it would be design consideration to have ability for roof rack and luggage.
Most cars their roof is dome shaped to achieve similar strength and have less consideration for roof racks and luggage on roof.

JBokeh

Just spotted it last night that my caddy has one too, had never even noticed it before. My old pajero definitely had one, I remember the previous owner had never washed the roof and having to scrub it up with a polisher to get it looking any way decent.