Self Fit Rooflight Warning.

Discussion in 'Motorhome Chat' started by Tootles, Mar 17, 2015.

  1. Tootles

    Tootles Funster

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    After taking the best advice last March, (*FUNSTERS*), I bought a new Heki rooflight for our old Hymer. The original 'pop up' model was getting really old, very discoloured, and frankly, brittle.
    All went according to plan, and the Heki became part and parcel of the truck, (following a nervous period checking for leaks). No problems at all until November, when I noticed a .....'dreaded drip'. Didn't amount to much, but with the winter in full swing, I dropped the truck off for repair with Stewart Morley of Pilling, Lancashire.
    He repaired, and reported thus:- My fitting had been fine, roof prepared properly, and the correct sealant used, Sykaflex 512. However, Stewart found that the Sykaflex had not taken to the roof light, because, (it seems), I had neglected to clean off the brand new unit with meths. When these plastic units are manufactured, they are sprayed with a silicon release agent, so they don't stick to the mould. This had stopped my sealant from adhering to the Heki, and completing a good bond, resulting in eventual water 'creep' over the plastic lip. A big job for a small oversight. :(:(
     
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  2. Phill D

    Phill D Read Only Funster

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    oops. ..... hope it was not too expensive to sort(y)
     
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  3. SMB

    SMB Funster

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    Hope it didn't cost too much Tootles but at least you have passed it on for others. If it had been a tank it probably wouldn't have mattered so much
     
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  4. vin0114

    vin0114 Funster

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    thanks toots for heads-up, will def clean any new units beforehand now, now a dedicated meths user(y)

    Vin
     
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  5. hilldweller

    hilldweller Funster Life Member

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    That's hard luck.
     
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  6. Lenny HB

    Lenny HB Funster

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    Perhaps someone should tell Autotrail, always seing reports of them with leaky Heki's, British built par for the course.:D
     
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  7. Tootles

    Tootles Funster

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    Well, he repaired it, and also fitted a new unit I had already bought for the loo, secured some of the insulation roof panels that had 'moved' slightly by becoming unstuck from the roof. £140 total, which I thought was very fair. Because I wasnt in 'a rush', he took his time over six weeks, kept the truck inside the workshop whilst I was in hospital, which was a great weight off our minds. Cant fault his attitude, nor his work. (y)(y)
     
    Last edited: Mar 17, 2015
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  8. Wildbill

    Wildbill Funster

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    so sorry to her that toots but the man who hasn't mad a mistake hasn't done any thing
    bill
     
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  9. Taran_Las

    Taran_Las Funster

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    Thanks for passing on your experience Tootles.(y)
     
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  10. Badknee

    Badknee Funster

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    Yes, thanks Toots. You would think something new would be fine really and now we are all forewarned and forearmed.
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    What a knob, I told him to clean that shite off first but would he listen would he hell, winge winge moan moan. :LOL:
     
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  11. Frentchy

    Frentchy

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    Its the same with PVC window replacements! they need cleaning where the sealer joint and existing wall/frame need sealing :(
     
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  12. Tootles

    Tootles Funster

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    As Knee says, you don't realise that something brand new needs treating first. My error, the fitting instructions might have said something, but being totally in German, easy to miss a meaningful phrase or instruction.
     
  13. Phill D

    Phill D Read Only Funster

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    com on now Toots ... your a man! when all else fails! you read the instructions... were all the same!:whistle:
     
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  14. Frentchy

    Frentchy

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    Not necessarily, Iv' even seen some replacement frames fitted with the plastic protection still on!! they trimmed around the frame and sealed to the plastic :eek:
     
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  15. Tootles

    Tootles Funster

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    Your right. I read the instructions on my marriage licence, but missed the small print which referred to me being totally subservient for as long as we both shall live......:cry::cry:
     
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  16. RS_rob

    RS_rob Funster

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    I am intenting on fitting 2 later this year & all the how toos Ive read on fitting these not one has mentioned using meths to clean the Hiki
    Good job I have some (y)
     
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  17. Phill D

    Phill D Read Only Funster

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    there is a great article with pics somewhere on google used it for aour last van before i changes 2 mini Heki's .

    there is a roll of sealing material in tape form that makes it really easy to seal and same as the professionals use, towsure used to sell it... oops still do.. http://www.towsure.com/product/Mastic_Sealing_Strip
     
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  18. DonA4000

    DonA4000 Funster

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    This is a job on my list so Thanks for sharing ;)
     
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  19. scotjimland

    scotjimland Funster Life Member

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    Can I ask why you chose Sikaflex 512 rather than a traditional sealing mastic such as Carafax IDL 99, which is a non-setting bedding mastic ?
     
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  20. davidbaldam

    davidbaldam Funster

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    Good heads up Tootles, thanks. (y)
     
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