Attaching Solar Panels Cables to Van Roof (1 Viewer)

Affiliate links here may earn MHF compensation
Oct 16, 2022
102
294
Funster No
91,923
MH
Transit Jumbo
Hey Forum, quick question please if I may:

Can I ask what is the best way to fix down the solar panel cables to the roof of my van?

I am thinking conduit is overkill. I could Sikaflex them down but this seems a bit micky mouse (maybe it isn't). Can I ask how others have done it please?

Many thanks
 
Sep 9, 2019
900
1,964
Runcorn
Funster No
63,956
MH
Autotrail Apache 632
Exp
Since Sept 2019
Self adhesive plastic trunking is a very neat solution, and a 2metre length from Screwfix is around £3, no-brainer in my opinion.
Cheers! Russ

Subscribers  do not see these advertisements

 
Sep 10, 2012
2,150
4,021
worcester
Funster No
22,842
MH
Sunliving van
Exp
2012
I used this with extra sika along the edges
It's big enough to cover the connector(staggered not side by side).
 

Lenny HB

LIFE MEMBER
Oct 18, 2007
54,387
154,309
On the coast in West Sussex
Funster No
658
MH
Hymer B678 DL
Exp
Since 2008 & many years tugging
Mini trunking bot don't use the self adhesive stuff it will start coming off in hot sunshine. Use the standard stuff as Berni say the D line looks good then use a PU adhesive like Stika to bond it to the roof.
 
Oct 18, 2021
2,166
6,553
Mid Devon
Funster No
84,940
MH
Adria Compact SC
Exp
Camping since 1954, MoHo 2022
If it’s just cables without connectors that are being run then the D-Line Micro+ conduit at 20x10mm is a good option. Available in black or white with elbows and other fittings on Amazon etc. As Lenny HB points out, use mastic to secure it and don’t rely on the sticky backing for an external use.
 
Sep 9, 2019
900
1,964
Runcorn
Funster No
63,956
MH
Autotrail Apache 632
Exp
Since Sept 2019
Mini trunking bot don't use the self adhesive stuff it will start coming off in hot sunshine. Use the standard stuff as Berni say the D line looks good then use a PU adhesive like Stika to bond it to the roof.
Hi Lenny,
I used standard 16x25mm sticky trunking on our roof to conceal our solar panel cabling, i thoroughly cleaned the areas where it was going to be positioned with pvc window cleaning fluid first (this is ACE for cleaning your roof BTW). It’s been in place for 3.5 years now and even survived 40+ centigrade for 3 weeks in southern France last June/July. I think the issue here is as per that well known squadron of soldiers from Hereford…… Proper Preparation and Planning Prevents Piss Poor Performance!! :ROFLMAO::ROFLMAO::ROFLMAO::ROFLMAO: I’m still an electrical assessor & lecturer at a college in the NW so I also add Paper Pencil Pen Pass & Phone to get 12 “P’s” instead of just 7!!:giggle:

Cheers!

Russ

Subscribers  do not see these advertisements

 
Jun 17, 2015
270
476
Portsmouth
Funster No
36,836
MH
Pilote G740
Exp
July 2015 plus 20 years of camping
I used self adhesive cable clips when I did mine. When eventually they detached ( which they do after a few years) I just stuck them down with sikflex.

In hindsight I wish I had used trunking as it think it looks neater. Also you still get some movement from the cables when using ties so you can get some paint wear. Plus trunking makes the roof easier to clean.
 

Lenny HB

LIFE MEMBER
Oct 18, 2007
54,387
154,309
On the coast in West Sussex
Funster No
658
MH
Hymer B678 DL
Exp
Since 2008 & many years tugging
Hi Lenny,
I used standard 16x25mm sticky trunking on our roof to conceal our solar panel cabling, i thoroughly cleaned the areas where it was going to be positioned with pvc window cleaning fluid first (this is ACE for cleaning your roof BTW). It’s been in place for 3.5 years now and even survived 40+ centigrade for 3 weeks in southern France last June/July. I think the issue here is as per that well known squadron of soldiers from Hereford…… Proper Preparation and Planning Prevents Piss Poor Performance!! :ROFLMAO::ROFLMAO::ROFLMAO::ROFLMAO: I’m still an electrical assessor & lecturer at a college in the NW so I also add Paper Pencil Pen Pass & Phone to get 12 “P’s” instead of just 7!!:giggle:

Cheers!

Russ
The problem with the self adhesive stuff is that it depends how long it has been in stock it's not worth the risk. I used it once and found it lifting off after a few year and yes the roof was cleaned properly.
 

Coolcats

LIFE MEMBER
Jan 24, 2019
6,026
10,255
Funster No
58,207
MH
HymerCar Ayres Rock
The problem with the self adhesive stuff is that it depends how long it has been in stock it's not worth the risk. I used it once and found it lifting off after a few year and yes the roof was cleaned properly.
Its interesting you have to have the right double sided stuff, I have used some which is available in the high street which is normally carp.

I found that 3M do a range of VHB tapes and if you get the right one for the job. (they don't all do the same thing so its important to get the right one) they do exactly what you need it too, the 3M technical help desk are really helpful. If you get the right tape for the right job you won't be disappointed. The tapes do have an expiry date but that's the same for most adhesives.

Show Hauler
3M VHB Tape Scooter - Rethink Tape

3M VHB Structural Glazing Tape - Mission Glass

3M™ VHB™ Tapes

 

Lenny HB

LIFE MEMBER
Oct 18, 2007
54,387
154,309
On the coast in West Sussex
Funster No
658
MH
Hymer B678 DL
Exp
Since 2008 & many years tugging
Its interesting you have to have the right double sided stuff, I have used some which is available in the high street which is normally carp.

I found that 3M do a range of VHB tapes and if you get the right one for the job. (they don't all do the same thing so its important to get the right one) they do exactly what you need it too, the 3M technical help desk are really helpful. If you get the right tape for the right job you won't be disappointed. The tapes do have an expiry date but that's the same for most adhesives.

Show Hauler
3M VHB Tape Scooter - Rethink Tape

3M VHB Structural Glazing Tape - Mission Glass

3M™ VHB™ Tapes

But most people don't that they buy the trunking with tape already attached.

Not much point in buying tape when you have a tube of Stika around.
 

Coolcats

LIFE MEMBER
Jan 24, 2019
6,026
10,255
Funster No
58,207
MH
HymerCar Ayres Rock
But most people don't that they buy the trunking with tape already attached.

Not much point in buying tape when you have a tube of Stika around.
if you have an appropriate adhesive sure why not, the 3M tape is amazing stuff just buy the trunking clean the area apply the tape and away you go no mess no fuss and lasts (dont buy pre-taped trunking).

The touch schauldt panel in our Hymer fell off and you often see this on ones which are not screwed on, I applied 3m and four and a bit years later it has not moved.

Just really saying if you use tape get a 3M VHB tape for the job and its fit and forget.

Subscribers  do not see these advertisements

 

Join us or log in to post a reply.

To join in you must be a member of MotorhomeFun

Join MotorhomeFun

Join us, it quick and easy!

Log in

Already a member? Log in here.

Latest journal entries

Funsters who are viewing this thread

Back
Top