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-   -   Solar panels on roof (https://www.irv2.com/forums/f59/solar-panels-on-roof-292180.html)

sampam 05-23-2016 12:44 PM

Thanks guys looks like we are going to get her done.

TateLMcD 05-23-2016 01:48 PM

I would suggest not using 5200. It is meant as a permanent bond and if you have a panel go bad it will be awful to get it back up. We have semi flex panels on our boat and like them, but on the rv I went with rigid since they are cheaper and you probably have plenty of good flat real estate on top. Renogy makes a nice z bracket for mounting. Personally I bedded our brackets with buytl tape letting the screws handle the clamping. Fiberglass roof.

PJStough 05-23-2016 01:53 PM

Quote:

Originally Posted by TateLMcD (Post 3081784)
I would suggest not using 5200. It is meant as a permanent bond and if you have a panel go bad it will be awful to get it back up. We have semi flex panels on our boat and like them, but on the rv I went with rigid since they are cheaper and you probably have plenty of good flat real estate on top. Renogy makes a nice z bracket for mounting. Personally I bedded our brackets with buytl tape letting the screws handle the clamping. Fiberglass roof.

I used brackets to tilt the panels. Not a problem if I have to remove a panel.

46490 05-23-2016 01:58 PM

Can you just splice into the existing wires from one solar panel to your additional panel and will the monitoring equipment handle the additional solar panel (s).

530ktm 05-23-2016 03:29 PM

Quote:

Originally Posted by 46490 (Post 3081802)
Can you just splice into the existing wires from one solar panel to your additional panel and will the monitoring equipment handle the additional solar panel (s).

You can use MC4 connectors to put multiple panels in place but also important is the size of the wire, the length of the run and the type of controller you are using. There is usually more to it other than simply splicing in another panel.

dverstra 05-24-2016 11:43 AM

I installed 4 new 100 watt panels and the install was simple. I purchased the panels and all install items from AM Solar. They sell the panels in kit form or just the panel. They have an aluminum bracket that is made to fit their panels. I recommend them.

becks 05-24-2016 12:16 PM

No regrets at all, only wish we had done it sooner. 1040 watts of solar, and as said, very happy.

twogypsies 05-24-2016 07:56 PM

Here's a video on one way to mount the panels. In our 'circle' of RVers, all use brackets. No one has glued them directly on the roof.

https://www.youtube.com/watch?v=77lLYVBFA0o

sampam 05-25-2016 10:58 AM

Thanks again everyone

TwelveVolt 05-25-2016 12:07 PM

Solar panels on roof
 
Since photo voltaic cells become less efficient as temperature rises, the panels are mounted with a cooling air gap underneath. Is there a difference in the design of the flexible cells to account for this as they are mounted directly to the surface? One salesman explained how they reflect more heat, but the way he described it sounded too much like PFM technology. Which are more efficient per square inch? Which have longer life expectancy?

keymastr 05-25-2016 12:30 PM

3M 4200 is just as durable but can be removed. 5200 will rip a hole in the fiberglass before it lets go.


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