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Old 12-01-2020, 07:53 AM   #351
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Well thats all there is to it. I did usd VHB tape for mounting...cleaned the fiberglass roof very well with alcohol...gently scrubbed with purple scotchbrite (not recommended for all types of VHB tape) and I elected to use an adhesion promotor...3M Primer. Full strength requires 72 hrs. I am happy to report...We drove 177 miles today and they are still up there.

After they are stuck down...you go back over sith Dicor to keep out the elements so hour tape doesn't deteriorate.

It has been difficult to get a performance measure...as the panels have been topping up and going into float before the sun gets up high enough to produce peak energy. I will do some test after programming my inverter's charger to stay idle longer. That way the solar might actually take long enough to allow the sun to get up higher in the sky.
Interesting that you did not drill into your roof to mount the solar panels. I am curious after roughly 3 years would you use same method to attach the panels to the roof? Have you encountered any issues with panels detaching.

I like your approach and I am uncomfortable drilling holes in the roof.
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Old 12-01-2020, 08:15 AM   #352
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Mine are at 2 1/2 years and they are not going anywhere...

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Old 12-01-2020, 09:11 AM   #353
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I like your approach and I am uncomfortable drilling holes in the roof.

I purchased my system from AMSolar, and like you, I was not comfortable drilling holes.

AMSolar supply feet with VHB tape pre applied. Clean the roof with alcohol; attach panel; then caulk. They are not going anywhere.

Check out their website - they have videos demonstrating this - and mention they have not lost a panel...
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Old 12-01-2020, 10:24 AM   #354
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Still going strong! Very happy with the mounts.
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Old 12-01-2020, 04:06 PM   #355
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Thanks everyone for your responses on the VHB tape. I'll plan to use the VHB method for mounting the panels.

Did you mount the combiner box using VHB tape w/ Dicor as opposed to using screws? The AMsolar video I watched on mounting the combiner box he used screws. Seems you could use VHB tape??

Thanks
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Old 12-01-2020, 05:27 PM   #356
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Thanks everyone for your responses on the VHB tape. I'll plan to use the VHB method for mounting the panels.

Did you mount the combiner box using VHB tape w/ Dicor as opposed to using screws? The AMsolar video I watched on mounting the combiner box he used screws. Seems you could use VHB tape??

Thanks
Funny....I can’t exactly remember what I did, but I bet I used VHB as I didn’t want to drill into the roof... And ran dicor around it to seal it. I figure there is more stress on the panel than the box.
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Old 12-01-2020, 08:49 PM   #357
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The screws in the combiner box are kinda a moot point. After all...I had to drill a 2” hole to fish the solar prep wires out. And to get to the roof..I had to remove a blank metal plate held down by screws. So the screw thru the roof thing by the combiner...well that ship already sailed. It is stuck down with butyl tape and dicor to keep it weathertight. I did use screws to secure it to the roof.
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Old 12-02-2020, 01:34 AM   #358
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I also used the AMSolar mounts with VHB last year. Be sure you observe the installation temperature instructions. The VHB tape does not like to be installed at low temperatures.
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Old 01-18-2021, 04:24 PM   #359
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This is an amazing post. I'm installing a 1020w Zamp system now. Using a Victron 150/70 smartcharge controller. I didn't find any prewire on my 2015 Ventana 4381. I chose to run cable thru 1/2 bath cabinet to ceiling. Cabling to charge contoller in basment adjacent to Oasis. Short distance to batteries. Getting close to being done.
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Old 01-18-2021, 08:13 PM   #360
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This is an amazing post. I'm installing a 1020w Zamp system now. Using a Victron 150/70 smartcharge controller. I didn't find any prewire on my 2015 Ventana 4381. I chose to run cable thru 1/2 bath cabinet to ceiling. Cabling to charge contoller in basment adjacent to Oasis. Short distance to batteries. Getting close to being done.
Other 2015 owners can chime in. If my memory serves...the solar prep was different. I think I remember people saying the wire was routed to the 1/2 bath cabinet, then down to the basement. Hopefully, a 2015 owner can elaborate...but you have already done what most did at the time...run new wiring.

Have fun...post a few snapshots of your project. Mine is but one way of doing it...and others may want some more details in your system.
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Old 01-18-2021, 09:57 PM   #361
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After removing the metal plate on the roof use it as a guide to drill the 4 holes in the bottom of the combiner box. Then you can use the same holes in the roof.
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