Reply
 
Thread Tools Search this Thread Display Modes
 
Old 02-12-2020, 01:19 PM   #41
1 Rivet Member
 
Munford , Tennessee
Join Date: Oct 2019
Posts: 13
I wouldn't screw the panels into the roof. Make 4X6X1/4 aluminum plates predrilled and countersink 1/4-20 X 1 inch stainless bolts that match the footprint of the mounting adapters. Cover plate and bolt heads with 3M 5952 VHB tape (available on eBay in sheets). Mount to roof and then cover edges with Dicor or Silkaflex. I found a seller on eBay that had the plates for sale. You might not find the exact size but if you find something like 4X12 ask the seller if they will cut in half. I found a seller for another project that didn't charge extra to cut.

Cut a slot in the end of the bolts in case you need to keep them from turning when tightening the nuts. I put the tape on the bottom of the plates a couple days before I mounted to the roof and my bolts didn't turn. I'm not sure of the days sitting helped but it does take a few days for the tape to "cure".

EDIT: Be sure the mounting plate is EXACTLY where it needs to be before sticking to the roof. Once stuck, you will not get it off. Well you could get it off I think with some nylon fishing line sawed between the roof and aluminum plate but the tape would definitely not be reusable. It's amazing how well this tape sticks.
Attached Thumbnails
Click image for larger version

Name:	Solar Panel Plate.jpg
Views:	16
Size:	290.4 KB
ID:	361016   Click image for larger version

Name:	Panel Foot w:o Nuts.jpg
Views:	15
Size:	211.8 KB
ID:	361017  

RV2019 is offline   Reply With Quote
Old 02-12-2020, 01:27 PM   #42
Rivet Master

 
2007 22' International CCD
Corona , California
Join Date: Jul 2013
Posts: 8,402
8awg Solar Prewire, now what?

I must admit I have no problem mounting solar panel feet directly to the roof using VHB 3-M tape and caulking/sealing the tape from damage with Sikaflex or the like.

Because my panels have aluminum frames, and I also have ham radio transmitting antennas close by on the roof, I have found it necessary to drill holes and use Rivnuts or Olympic rivets to very tightly electrically bond the panels and feet to the roof structure for RF safety. Getting RF into the solar system is not a great idea. I dislike getting zapped as well.

In most normal cases using VHB tape and sealant is more than sufficient to keep the panels on the roof.
__________________
Rich, KE4GNK/AE, Overkill Engineering Dept.
'The Silver HamShack' ('07 International 22FB CCD 75th Anniversary)
Multiple Yaesu Ham Radios inside and many antennae sprouting from roof, ProPride hitch, Prodigy P2 controller.
2012 shortbed CrewMax 4x4 Toyota Tacoma TV with more antennae on it.
rmkrum is offline   Reply With Quote
Old 02-12-2020, 07:50 PM   #43
4 Rivet Member
 
2019 28' Flying Cloud
Dripping Springs , Texas
Join Date: Dec 2019
Posts: 259
Quote:
Originally Posted by RV2019 View Post
I wouldn't screw the panels into the roof. Make 4X6X1/4 aluminum plates predrilled and countersink 1/4-20 X 1 inch stainless bolts that match the footprint of the mounting adapters. Cover plate and bolt heads with 3M 5952 VHB tape (available on eBay in sheets). Mount to roof and then cover edges with Dicor or Silkaflex. I found a seller on eBay that had the plates for sale. You might not find the exact size but if you find something like 4X12 ask the seller if they will cut in half. I found a seller for another project that didn't charge extra to cut.

Cut a slot in the end of the bolts in case you need to keep them from turning when tightening the nuts. I put the tape on the bottom of the plates a couple days before I mounted to the roof and my bolts didn't turn. I'm not sure of the days sitting helped but it does take a few days for the tape to "cure".

EDIT: Be sure the mounting plate is EXACTLY where it needs to be before sticking to the roof. Once stuck, you will not get it off. Well you could get it off I think with some nylon fishing line sawed between the roof and aluminum plate but the tape would definitely not be reusable. It's amazing how well this tape sticks.

I love it! I planned on doing something similar to compensate for the small footprint of the 'curved' Renogy mounts I purchased.
Kalashnikov is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
solar prewire location: 2007 20' Safari SE DBULL Electrical - Systems, Generators, Batteries & Solar 2 10-21-2012 10:01 PM
Solar Prewire - 2005 Safari, 22 ft jsutro Generators & Solar Power 18 04-06-2012 01:29 PM
Solar Battery Charger Prewire t7389sg Classic Motorhomes 0 08-18-2011 08:01 AM
solar/use prewire? billiards Generators & Solar Power 4 07-30-2008 01:54 PM
Solar Prewire, What Does It Mean? dottie dawglips Generators & Solar Power 6 08-06-2003 07:30 PM


Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.



All times are GMT -6. The time now is 08:51 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.