Bumpy roof on our MH (1 Viewer)

Jun 16, 2013
1,228
820
Wiltshire
Funster No
26,522
MH
Low Profile Hymer CL 554
Exp
Since May 2014
Does this sound right to you, not sure if i am worrying about something and nothing :-(

OH was washing the roof today and noticed that the front part of the roof appears to be bumpy, quit big bumps. This is on the flat part of the roof. Also the masking stuff around the front of the roof appears to have black mould in it.

We have taken a photo so will try to upload it later. Should we be mentioning it to our dealers?
 
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Lenny HB

LIFE MEMBER
Oct 18, 2007
52,698
147,643
On the coast in West Sussex
Funster No
658
MH
Hymer B678 DL
Exp
Since 2008 & many years tugging
What make is the van? Is it an aluminium or GRP roof?
GRP roofs are often not bonded so can move and ripple but should only be slight if they are large bubbles you may have a problem.

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Spidey
Jun 16, 2013
1,228
820
Wiltshire
Funster No
26,522
MH
Low Profile Hymer CL 554
Exp
Since May 2014
Its a chausson flash 510, o dear don't like the sound of delimitation
:-(
 

jonandshell

Free Member
Dec 12, 2010
5,476
8,299
Norfolk
Funster No
14,648
MH
Not got one!
Exp
Since 2006
Our polyester roof on our Chausson has always been bumpy. It was like it new.
It's just a very flexible construction.
 

pappajohn

LIFE MEMBER
Aug 26, 2007
43,207
48,819
Dark side of the moon
Funster No
172
Exp
Since 2005
Don't worry about the black marks.
I think it's a fungal growth within the sealer.
It's normal and won't cause any problems.

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Spidey
Jun 16, 2013
1,228
820
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MH
Low Profile Hymer CL 554
Exp
Since May 2014
image.jpg
image.jpg
image.jpg
 
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Spidey
Jun 16, 2013
1,228
820
Wiltshire
Funster No
26,522
MH
Low Profile Hymer CL 554
Exp
Since May 2014
Also while i am on a roll. Took e MH down to the garage and there was a lot of rattling from what seemed like inside the facia at the bottom of the roof window. Could bits get into that area?

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Sep 16, 2010
2,994
2,849
Bungay Suffolk
Funster No
13,734
MH
Autotrail TrackerEKS
Exp
Since 2010
I didn't think mould could grow on good quality sealant.. But it should still be doing its job.. I wonder if the dealer would "rake" it out and re-do it ??
Be reassured by the other folks with like vans who have the same 'ripples'... :)
 

Judge Mental

Funster
Deceased RIP
Sep 2, 2009
6,650
5,883
Sarth London
Funster No
8,272
MH
Possl 636 FR panel van
Exp
1994 and beyond...
dont panic, some grp roofs are not bonded but float as they expand and retract with the temperatures...stops them cracking. check with dealer to find out how its constructed
 
May 7, 2013
845
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RUK
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25,884
MH
C Class
Exp
On our 2nd MH now a AutoTrail Savannah which we're absolutely delighted with
It is a Polyester 54 mm thick reinforced roof designed to move/flex in different conditions. While it might be unsightly, they have as much as I have researched, an excellent positive record on the lack of water ingress.

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scotjimland

LIFE MEMBER
Jul 25, 2007
2,086
9,031
Suffolk Coastal District, UK
Funster No
15
MH
Timberland
I would clean the black mold off.. if left it will continue to eat into the sealer and may eventual cause it to leak..

Use a soft brush and scrub with soap and mild bleach solution or buy a fungicidal cleaner..

For peace of mind I would have the roof checked by the dealer..
 
Nov 11, 2013
1,959
6,893
Tewkesbury
Funster No
28,984
MH
Hymer T-SL 668
Exp
March 2014
Just checked my one month old Chausson 718 and yep, the front section of the roof is rippled just like the photo above. Strange I hadn't noticed it before as the van is parked below my bedroom window and I see the roof every day, so I guess it must be temperature dependent?
 
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Spidey
Jun 16, 2013
1,228
820
Wiltshire
Funster No
26,522
MH
Low Profile Hymer CL 554
Exp
Since May 2014
I can see our roof from bedroom window, but never noticed it. Mind you it was a bit dirty as park near trees. Only when hubby cleaned the roof we noticed o_O

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