Roof vent open during travel

Discussion in 'Tech/Mech General' started by Ridgeway, Jun 17, 2012.

  1. Ridgeway

    Ridgeway Funster

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    Recently we've noticed a few MH's with roof vents open while traveling, not the full size winding/tilting large size but the much smaller push up style, approx 12" x 12" and I noticed that they had them open at the back and closed at the front i.e. slanted so that the wind couldn't get under them, like a car sunroof on tilt up mode.

    Is this sensible or are you asking for it to ripped off ?
     
  2. pappajohn

    pappajohn Funster Life Member

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    shouldn't be a problem providing the pivot retaining springs are still strong.
     
  3. slobadoberbob

    slobadoberbob Read Only Funster

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    we travel with both down and locked

    We travel with both of ours down and locked.... when we collected ours after registration sue followed me in the car and the rear roof vent was open .. called me on the radio (cb) said it was about to take off.. so we never move with the vents open.

    Bob
     
  4. Ridgeway

    Ridgeway Funster

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    yes they are very strong and need a good push to get them up/down
     
  5. Ridgeway

    Ridgeway Funster

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    Bob how big are these ?
     
  6. pappajohn

    pappajohn Funster Life Member

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    American ones are generally crank up vents and have quite a lot of play in the winder mechanism so flap up and down a lot.

    we run with ours closed for that reason.
     
  7. TheBig1

    TheBig1 Funster Life Member

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    even with the vents closed its not that uncommon for the covers on older vans to get ripped off. If you intend travelling with a push up vent open at the rear, fitting a spoiler in front will help

    standard sizes for push up vents these days are 400x400mm or 500x500mm. you used to be able to get 280x280, but these werent common

    another reason to keep them closed when driving is the added howl of wind noise you get from some
     
  8. scotjimland

    scotjimland Funster Life Member

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    Fit Maxxair vent covers and you can drive with them fully open ...

    Surprised you don't have them Bob

    available form all good RV supply shops ..

    [​IMG]
     
  9. Ridgeway

    Ridgeway Funster

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    Perfect, think I'll order one

    Thanks
     
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  10. flatpackchicken

    flatpackchicken Funster Life Member

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    Only way to go mate, i have 3 on mine and all open most of the year especially when traveling, as gives good air flow throughout and keeps heat build up down in the summer months and also good for when it rains as well as no rain can get in either, so able to be open as much as you want. Regards Garry Flatpackchicken
     
  11. slobadoberbob

    slobadoberbob Read Only Funster

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    They are crank up as John says

    These are 12 x 12 and both have a crank.. One isa fantastic vent that is an extractor pull air through .. In main area, the other is a normal extractor fan with a lift up lid... Both lift of course... But I coul leave them up in transit.. But they are not designed to stay up unlike the big ones tat are used on caches (passenger) type where you can lift one end or the other, or both sothe air flow is going directly through.

    Bob
     
  12. Geo

    Geo Trader - Funster

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    Check fit before ordering
    They are designed for RVs primerilly but might fit Euro vents:thumb:
    They are the dogs dangly bits,you can open vent fully and forget it come rain snow or blow
     
    Last edited: Jun 18, 2012
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  13. slobadoberbob

    slobadoberbob Read Only Funster

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    Just not enough room on my roof

    Not enough room on my roof... Being only..... Wait for it..... 23'9" long... With the air conditioner box, the wingrad Ariel, the Saterlite tv dome fridge vent, toilet vent and two roof lights it is a bit crowded on the roof.. Have considered it .. But te next owner can play with that if they desire.


    I must admit I use the fantastic vent a lot.. Draws air from the nearest window on the shade side and cools there down.. Saves running the air conditioner.


    Bob:thumb:
     
  14. Geo

    Geo Trader - Funster

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    Purely for info future Bob they have the same footprint as the vent its self, no extra space reqd:thumb:
     
  15. slobadoberbob

    slobadoberbob Read Only Funster

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    The flanges look bigger

    Te flanges look bigger Geo... They have to go over the existing vent cover... One oh my vents... The one I would lie to have an all weather over... Is very tight to the back of the air con box...

    But thanks for advising ....

    Regards

    Bob:thumb:
     
  16. vwalan

    vwalan Funster

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    remember that driving with a vent open can drag smells through from the grey tank . mant folk have made this mistake .
     
  17. flatpackchicken

    flatpackchicken Funster Life Member

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    Hi Alan,
    I have virtually eliminated the smells from black tank whilst traveling and standing by fitting a Turbo fan powered by the wind, and it works perfectly, as before no fan i used to get smells from black tank:Eeek: when traveling and when stopping and also when parked up sometimes, but all eliminated now. Regards Garry Flatpackchicken
     
  18. chatter

    chatter Read Only Funster

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  19. Spacerunner

    Spacerunner Read Only Funster

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    Why would you want to travel with roof vents open?
    Cab ventilation will ensure a good input of fresh air and most roof lights already have permanent venting built in. Cab air-conditioning, if fitted, will increase an already efficient system. And I'm sure there are enough built-in holes in the average RV/MH to ensure a good through flow.

    Even touring down in Southern Spain our moho never became over heated whilst on the road.
     
  20. slobadoberbob

    slobadoberbob Read Only Funster

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    our RV can get very warm while on the move

    Our RV can get very warm while on the move.. even with the dash aircon on... I can read the habitation area temperature and it gets warm in the back where Ezzie is.. often run the generator and the roof habitation air con to keep her cool.

    Bob:Blush:
     
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