Sunroof - scot22

I have wondered if, in an accident, a sunroof might provide less protection than a standard roof.

Also, any feelings about them - good or bad.

Sunroof - SteVee

I love tilt 'n slide sunroofs - it's a big plus on any car I want to buy.
I do like the sunroof fully open with the rear windows down - so these need to be electric; not quite as pleasant as a convertible - but easier to live with.
I detest the panoramic sunroofs and consider them a big minus on any car I buy.

I would think they're marginally less good than a standard roof in a crash.

Sunroof - John F

I don't think it would make much difference, unless it was open.

Only good feelings, especially the solar-PV roof in my Audi which works the fan keeping it cool(ish) when parked in the sun.

Sunroof - oldgit

I have had tilt and slide sunroofs on my cars since the '80s but on Thursday I take delivery of my new car without one - a Golf MK7 1.4TSI Match Edition.

It was a sudden impulse buy in a way, as I went into the showroom to have a demo to try the dreaded electronic handbrake but which turned out to be a pleasant experience. I then discussed availability of the above, fully expecting a factory order of several months as in the previous last two Golfs where I had specced a sunroof and one or two other extras. However, I am now willing to forgo that and, as a result there were at least three cars available in about 3 weeks and it turned out that one was at the back of the dealership in wraps and so bought that, in the colour I wanted!

No sunroof but everything else bar Climate Control which I would have liked but heyho simple Aircon has sufficed on the last 3 or 4 cars and wasn't prepared for another 4 month wait for a car anymore.

To be honest, apart from the welcome extra interior light afforded by the sunroofs, I don't use them much nowadays and the new cars have the so-called panoramic ones which are clunky and clumsy and don't really give a much bigger opening and have a £900+ premium.

Sunroof - Smileyman

I posted a thread about sunroofs a few months ago, one reader suggested that an aftermarket roof would reduce safety - I'm not an expert but my gut feeling is to disagree!

Any sunroof over the front of the car will be slotted between the cross members that give the vehicle structural rigidity - so there is no reason to suspect this rigidity would be lessened by the removal of a sheet of thin metal and be replaced by a pane glass. Of course perhaps the glass itself might shatter, but this would not reduce the structural integrity of the vehicle. Likewise for an opening roof, be it glass or metal.

Exceptions - I can think of two.

Firstly, a panoramic sunroof spanning the whole length of the car. I've not seen any crash test results, but by fitting the glass the whole length the cross members will not be present - so this I would expect to reduce structural rigidity,especially if the glass does break (where would the shards go, onto the passengers??)

The second option would be for a full length fabric roof.

If this matter worries you perhaps look at the ENCAP test results for vehicles with and without sunroofs, if such comparisons exist.

For the record I have a sunroof, have had such for almost my full driving life (30+ years) it was open twice today (commute to and home from work) and will not buy a car without either a factory fit or aftermarket option for sunroof - let the sun shine in!

Edited by Smileyman on 05/07/2016 at 21:22

Sunroof - bathtub tom

Don't worry. Folk used to drive Triumph Heralds with a tin-top. Unfortunately it was just bolted on the same version as the convertible.

Roll either over and they were reduced the level of the bottom of the windows!

Sunroof - John F

I wonder how many of the circa 7,000 deaths per annum of that era they were responsible for!

Sunroof - scot22

Thanks for all these informative replies. I am not specifically looking for sunroof but wanting to know if there was to be one on a car that appealed. : know now to avoid panoramic.

Off the thread, but re your post oldgit, I am strongly anti electronic handbrake but you found it O.K.. Wondering if they have improved.

Sunroof - oldgit

Thanks for all these informative replies. I am not specifically looking for sunroof but wanting to know if there was to be one on a car that appealed. : know now to avoid panoramic.

Off the thread, but re your post oldgit, I am strongly anti electronic handbrake but you found it O.K.. Wondering if they have improved.

Dont' know whether they've improved as I haven't used them before but still found my drive more than satisfactory and the Autohold is very useful on an incline in not having to grab for handbrake every time you want to pull away again. On a steep-ish hill I found, near Shoreham Kent, the car pulled away from a stop situation perhaps not quite a smoothly as I could have done with about 60 years of driving with the old lever and cable! Only time will tell and more and more cars I looked at are fitted with these now and I expect work better with Automatics.

Sunroof - Engineer Andy

Any hole cut in a sheet of anything will inevitably reduce the strength of the remainder of the sheet. The weak points are the cut line of the hole, and is why 'normal' sunroofs, just like airplane windows, have rounded rather than sharp, squared-off corners (after the Comet metal fatigue/crashes debacle) - they don't concentrate loads at those 4 corners as much.

Sunroof - RT

Any hole cut in a sheet of anything will inevitably reduce the strength of the remainder of the sheet. The weak points are the cut line of the hole, and is why 'normal' sunroofs, just like airplane windows, have rounded rather than sharp, squared-off corners (after the Comet metal fatigue/crashes debacle) - they don't concentrate loads at those 4 corners as much.

But additionally, it depends what's bonded into the aperture - in some cases it can strenthen the overall structure!

Sunroof - Avant

I'd have had a sunroof on my V60 if we didn't already have a convertible (SWMBO's Mini Roadster). I can't believe that a car would get through the NCAP testing process if it were seriously weakened by having a sunroof.

Re electronic parking brakes - they do work better on automatics. I much prefer a proper mechanical handbrake, but to insist on one reduces your choice of car more and more every year. I suppose that having one with a manual gearbox may be manageable provided that there is a hill-hold which lasts more than a second.

Sunroof - oldgit

I'd have had a sunroof on my V60 if we didn't already have a convertible (SWMBO's Mini Roadster). I can't believe that a car would get through the NCAP testing process if it were seriously weakened by having a sunroof.

Re electronic parking brakes - they do work better on automatics. I much prefer a proper mechanical handbrake, but to insist on one reduces your choice of car more and more every year. I suppose that having one with a manual gearbox may be manageable provided that there is a hill-hold which lasts more than a second.

Autohold operates as soon as one depresses the brake and the car has stopped. It stays that way until you apply some 'gas' and release the clutch at which time it releases. I suppose, like simple hil hold assist it can sense the angle of the car i.e. its inclination to the horizontal.

Sunroof - scot22

Thanks for some more valuable posts. I hadn't thought about the NCAP validation. As always, I suppose I need to test drive a car with electronic handbrake.

Sunroof - hillman

I am follically challenged on top so a sunroof is out of the question.

I was once being given the hard sell by a car salesman. The model he had to sell had tinted windows at the side and rear; he called it 'privacy glass'. The car also had a glass sun roof. When I said that tinted windows were prone to make the inside of the car gloomy and I would need to keep the sun roof closed, he said that he always drove with the sun roof open so that he could let some light into the car. That rather negated the use of the tinted windows.

I first met 'privacy glass' when I was working in Jeddah. That permitted the women to ride in the back of the car and nobody could see them

Sunroof - RT

I am follically challenged on top so a sunroof is out of the question.

I was once being given the hard sell by a car salesman. The model he had to sell had tinted windows at the side and rear; he called it 'privacy glass'. The car also had a glass sun roof. When I said that tinted windows were prone to make the inside of the car gloomy and I would need to keep the sun roof closed, he said that he always drove with the sun roof open so that he could let some light into the car. That rather negated the use of the tinted windows.

I first met 'privacy glass' when I was working in Jeddah. That permitted the women to ride in the back of the car and nobody could see them

I too am "follically challenged" totally defeated in fact but wouldn't dream of having a car without a sunroof - tinted glass all round including sunroof lets a lot of light in - I don't like privacy glass, or importantly my passengers don't as they can't see out as well!

Sunroof - dan86

One of my cars has privacy glass and on the outside its very dark you can't see in unless you press you're face right up to the window. Yet on the inside it let's a considerable amount of light in. It's great for the kids as they can see out of the window while the sun isn't in there eyes.

Sunroof - RT

One of my cars has privacy glass and on the outside its very dark you can't see in unless you press you're face right up to the window. Yet on the inside it let's a considerable amount of light in. It's great for the kids as they can see out of the window while the sun isn't in there eyes.

That's how privacy glass works - my previous car had it but my rear seat passengers didn't like it as they're avid birdwatchers and couldn't see as well - fixed on my new car by not ordering privacy glass but getting a set of tailored removeable shades from carshades.com which are brilliant as they can be easily removed when required - the covers on the rear quarter lights and tailgate staying on all the time.

Sunroof - Wackyracer

I doubt a sunroof would make much if any difference to the cars rigidity as that is usually done with the frame work around the edges of the roof.

With a glass sunroof like I have, I guess if the car was to turn over at speed it could result in your head scrapping along the tarmac. I wouldn't ask for a sunroof, I much prefer windows closed and aircon.

Sunroof - hillman

When I was in Africa no car had a sunroof and I only rode in one car that had air conditioning. The sun was directly overhead at noon and it would be wise to wear a hat. The car parking bays had a roof of corrugated iron or the car cooked. We used to drive with the drivers window open, that way the air circulated in the car but didn't cause a howling gale. I did see a few sports cars with open top but only a handful.

When it rained it was a downpour that you don't experience in the UK, no matter how heavy the rain is. Once or twice the rain was so heavy that one couldn't see beyond the end of the bonnet, let alone where you were on the road. It was the understood thing then to stop the car and wait until you could see again.

Sunroof - Smileyman

I too am folically challanged (have been since I was 21) - never got a better suntan on my head / face than the summer I did a lot of driving ... with the sunroof open!. And, yes I am aware of the dangers of too much sun, so a simple sunhat is the answer to that!

Sunroof - Wukl

I love my car's sunroof. Unfortunately it seems increasingy difficult to find a replacement car with one as an option, i.e. one of the old-fashioned tilt and slide type. I wonder if this is a result of the latest NCAP tests? I've no evidence for this, but I do wonder if it is just too difficult to facture in the appature in the roof. Then again, what about the profilieration of the modern panoramic sunroofs? I don't know, we need an industry insider to help us!

For as long as I can, I will enjoy my sunroof. It tends to be open anytime I can between 5°C and 20°C. Noise is bearable up to about 80mph - certainly quieter than the windows - and I get to enjoy the birds singing when I'm in the county lanes. For me, it's more about the sounds and smells of the outside, rather than the additonal light.

Sunroof - Alby Back
I've just recently had a new car, another E class estate, it's new, but it's the run out model with the resultant "everything as standard" that manufacturers tend to throw at such models to help to clear the last of their stocks down.

It has a panoramic/opening sunroof and I absolutely love it. I can't justify a convertible and need a large estate but this gives me ( well almost ) the best of both worlds. Even at ( legal ) motorway speeds the windrush isn't intrusive and the feeling of fresh air and daylight on a long run reduces tiredness and increases enjoyment. I can quite easily hold a conversation on the hands free with the roof open at 70 mph.

I'd quite forgotten what a nice accessory it is.
Sunroof - scot22

All of the posts have been interesting and enjoyable - thanks.

I'd never thought that it might reduce tiredness which may make it a positive safety feature.

Sunroof - Alby Back
Well, I can only speak for myself of course, but I spend a lot of time driving and the fresh air feeling is nice. Naturally you'd get the same from opening a window I suppose but not without some noise at any speed. The open roof on my car is really very quiet at normal road speeds.

Something deep in what remains of my memory says that there's something good about exposing yourself to daylight. Vitamin D or something.

Might be nonsense of course. I like it though.

Edited by Alby Back on 08/07/2016 at 23:35

Sunroof - RT
Well, I can only speak for myself of course, but I spend a lot of time driving and the fresh air feeling is nice. Naturally you'd get the same from opening a window I suppose but not without some noise at any speed. The open roof on my car is really very quiet at normal road speeds. Something deep in what remains of my memory says that there's something good about exposing yourself to daylight. Vitamin D or something. Might be nonsense of course. I like it though.

We all need daylight/sunlight to get enough vitamin d - but too much daylight/sunlight causes skin cancer - tinted glass reduces light transmission while some also reduce the harmful UV rays, but other tinted glass doesn't.

Some people need to have Vitamin D supplement - much safer than trying to get more daylight/sunlight.

But - I always have a sunroof, preferably panoramic!

Edited by RT on 09/07/2016 at 08:17

Sunroof - Steveieb

The sunroof on my Mersedes c350 is perfect with no buffeting.

But the real surprise was the Fiat Twin Air Convertable, which I drove round the alpine circuit at Milbrook on a sunny day last month.

The roof folds right back or halfway with little or no buffeting and the engine is an absolute miracle being only a twin cylinder 900cc .

Sunroof - twitcherman

I dislike sunroofs, they are an excellent source of wind noise and leaks.

Sunroof - madf

I dislike sunroofs, they are an excellent source of wind noise and leaks.

I dislike sunroofs- too noisy at speed.

And btw, what is sun?

Sunroof - gordonbennet

I'm a fresh air fiend too, still prefer the driver's window open plus the sunroof, luckily all our cars have tilt and slide roofs.

Aircon not really bothered whether its there or not.

Sunroof - Alby Back
>>I dislike sunroofs- too noisy at speed.

Must depend on the car, mine is pretty quiet at any speed that conserves your licence.