Installing a solar panel on Jayco 2008 rubber roof

I made my own brackets from 1" aluminum angle use #10 stainless screws and bolts and lots of Dicor. There are 3 screws into the roof

You have 3/8 ply compared to the Jayco's 1/8".

Here's what I'd suggest: Cut 3' of 4" Eternabond into two 2" strips. Locate the rafters where you wish to install the solar module. Place the tape across at least two rafters and this will be the location of where you mount aluminum angle as brackets. Drill the aluminum angle pieces at the rafter spacing measurements. Place on the tape and drill into the rafters. Attach the aluminum angle pieces on top of the Eternabond strips with #12 stainless screws in three locations. The module can now be fitted with either short angle pieces in the mounting holes of the panel or Z brackets. Fasten the brackets on the module to the brackets you've installed on the roof.

You could also attach all the aluminum pieces on the ground and then fasten onto the roof. Your choice (depends on your measurement skills).

If you proceed like above, your solar panel will be held very rigidly to the roof and the Eternabond tape will seal the screws as they are driven through the tape. You will likely squirt on a bunch of sealer onto the screws (everybody needs to make their project look like a Kindergarten craft affair) but it isn't needed.

FWIW, I have a 60" module with a four-way tilting mechanism attached like above. It sits for 6 mos. of the year with the module tilted in all kinds of wind and weather. It is like it's welded to the aluminum sheet roof.

Good luck with the installation.

I'll have to see if I can locate the aluminum rafters, thanks.

Padlin wrote:
I'll have to see if I can locate the aluminum rafters, thanks.

How about a tool rental place that might have a scanner that would detect things like metal pipes, wiring etc.

I watch a video off Facebook with an item called Walabot that is a scanner which attaches to any android smart phone that was pretty impressive. Cost for the DIY model is about $200.

I do like the idea with only 1/8" plywood to find the metal framing.

Sorry for posting so late,but i was just looking around old topics and articles information about equations of walls,and could not pass by.I just have couple words about walabot,because I'm the owner of this device.Which was bought a long time, when at the start of sales i bought for $ 300 in amazon!
Here is my full opinion:
"walabot Product did not work nearly as well as advertised, I gave it a chance on multiple jobs and it still has not done what is advertised at all. I would really like a refund if at all possible. I will continue to give my honest review as a contractor that has been in construction for over 13 years, and will post this on every feed I see across Facebook and Amazon"

Same as Colo Native. 4 panels on the roof no issues.