Fitting A Roof Box - What Do I Need To Know? (1 Viewer)

Tasng4

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Aug 14, 2016
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Ford Transit 1984
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April 2016
Firstly I assume this is the correct place for my question, if not please feel free to move it or ask me to re-post in the correct one.

I have a 1984 Ford Transit MH (see photo), there is a ladder at the back so I can get to the roof. Once up there it's obvious where one can walk about as the roof is thicker, as if a piece of 15mm plywood has been cut & made to fit around the roof vents etc. I assume this was at manufacture. I also have a roof box which I'd like to fit up there but I'm unsure of the best/safest way to fit it to the roof or even if this is a good idea to do it ones self.

My thoughts would be to use quite a lot of screws and Tiger seal to screw/glue it to the roof. The MH does have a chrome rail around the perimiter of the roof but I assume this isn't designed to have long roof bars fitted to it.

Any suggestions greatfully receieved.
 

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Nov 3, 2013
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Fiat Ducato Auto Wildax
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C/van since '73 .M/h.2009
Hi.
Check your new "Height" if you are going through ...."Rouen"....
Tea Bag
 
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Flamenca

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My thoughts would be to use quite a lot of screws

I would avoid using any screws to secure to the roof. I have not done it myself but others have used Sikaflex or possibly strong double sided tape.

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scotjimland

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Jul 25, 2007
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Provided it is a bonded roof construction Sikflex without screws will be fine

On the either hand, if it's aluminium sheet on wooden frame .. then I would use screws and Sikaflex .. otherwise the box could lift the ally sheeting
 

Xabia

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Just keep in mind that if you use French toll roads the box will activate the height checking equipment and put you into a more expensive rate, the only way round that is to press the button to speak to an operator and explain that you are a camping car.
 

JFD

Apr 9, 2015
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Crawley Down, West Sussex, UK
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since 2014!
We have a roof box for the car, and that is fitted by using 'U' bolts to attach the vehicle cross rails to the internal steel frame of the roof box. The actual box is fairly flimsy plastic/fibreglass.

A roof box for the top of a motorhome would need to be constructed very differently. Maybe worthwhile looking at the Fiamma website to see if they have any information about fitting theirs?
 
Jan 27, 2013
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Benimar Mileo 282
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Hearsay aside I'd be interested to know if anyone has actually had a manual booth or an automatic toll class them as anything other than Category 2.

My vehicle is 2.77 metres high. I have an a/c unit which is 250mm high but this sits on a roof which is lower than the side rails so I guess adds 180mm to the height i.e. 2950mm

The MTPLM/GVW is 4250kg (and thereby Category 3)

We often tow a car on an a-frame (and presumably are therefore Category 4)

I have never registered on automatic tolls as anything other than Category 2 and never been charged anything other than this on an attended toll.


So...

Anyone with a luton style MH from Roller Team i.e. 675 or 690 been charged as Category 3 (they have an overall height of 3200mm)?

Anyone with a tag axle been charged as category 4?

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Oct 14, 2007
3,958
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Rochester
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Auto-Trail Mohawk
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16 fun filled years
Hearsay aside I'd be interested to know if anyone has actually had a manual booth or an automatic toll class them as anything other than Category 2.

Yes a few times on a auto both and as another poster said you need to press the button and explain you are a camping car.
 
Apr 10, 2010
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Carthago
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Anyone with a tag axle been charged as category 4?
Oh yes. Automatic booths (in France) always ping us for a Cat 4. Manual operator booths usually charge Cat 2, but they are few and far between these days. I've never tried pressing the button and saying "camping car", since we are actually a Category 4 and I haven't got that much front!
 

Hymie

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Nov 29, 2013
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Classic Hymer B564
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Since 1981
Got a 500 litre top box on a 91 Hymer.

It has what looks like a large bolt in each corner screwed into rather large threaded washers on the ceiling side, and 2 safety straps on either side to the rails.

It was fitted by Hymer at the build point, been there 25 years and still sound.

There is a fair bit of pressure against an exposed slab sided box at speed, get it wrong and you could have a large ventilation hole, not forgetting the carnage that could ensue if it blew off on a busy dual carriageway or motorway.

Hymie.

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