Frankia _ Leaking Heki Roof Vent - Motorhome Forums, Motorhome Discussion, Motorhome Chat

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post #1 of 6 (permalink) Old 03-10-2010, 14:41 Thread Starter
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Frankia _ Leaking Heki Roof Vent

Hello,

I am sat in the Motrohome and yet again it is leaking rainwater in. That and when I open the bathroom door it catches on the a/c facia as the habitation area twists when on ramps.

So.....

I have already re-sealed around the outside of the Heki (think it is a Heki 4 plus). But it is still dripping water. Anyone have any ideas where the water could be coming from?

I have checked the seals and they seem okay.
The solar panels are glued to the roof.
The cables are sealed perfectly.

TM
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post #2 of 6 (permalink) Old 03-10-2010, 14:49
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You may have a hair line crack in the frame.
Not sure how you would fined it.

I had a small leak from a small rooflight over the bed from a hair line crack luckly was able to pip point it as it was coming down a screw fixing point.

Sealed it with a mastic tape.

Andy

There are no typing, spelling, or grammatical errors in my post. What you are seeing is the evolution of the English language in action.
This post may be unsuitable for overly sensitive persons with low self-esteem, no sense of humour or irrational religious beliefs,if you are please disregard the above post. Andy
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post #3 of 6 (permalink) Old 04-10-2010, 18:12 Thread Starter
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leaks

Thanks inkey, I will have to try and get up on the roof when the weather is good.

TM
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post #4 of 6 (permalink) Old 28-09-2021, 21:40
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I know the post is over 10 years old but did you manage to fix the leak ?. My Frankia is leaking around the mini heki and its sealed 100%. I think its coming in somewhere around the side seals and draining through the roof. Any advice would be greatly appreciated
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post #5 of 6 (permalink) Old 28-09-2021, 21:54
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Dependant on which sealant has been used it is very possible for what appears to be a good seal but still be one that allows water through.

The plastic that Heki vents are made from will resist attachment from most silicone and the normally used Sikaflex products.
My suggestion would be to remove the vent completely and thoroughly clean the mating surfaces, then using either a ribbon strip or a butyl mastic, for a secure and lasting seal.


.

John
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post #6 of 6 (permalink) Old 29-09-2021, 06:36
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Yes as john says sealant is not very good, mastic is sold for this job, but the Heki etc has to be removed and then cleaned and the roof too, then I get a good double layer of the butyl mastic, and that should sort it out.
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