Strength of Roof and Solar Install question

Lwiddis wrote:
Your roof does seem thin but don’t over estimate the wind forces on solar panels. Passing over and under reduces the force significantly. However, I’d screw to the aluminum supports and install 300 watts but wire for four. I wouldn’t walk on your roof at all.

You’ll love solar. My batteries are almost always full by 1 pm.

Nope, will never walk on it again. I even stopped doing it before I found out the "thickness."

The solar definietly fits my preferred stye of camping (boondocking, no full hookups, etc.).

We purchased a renogy 100w suitcase type of solar panel that has their latest waterproof controller. Amazon looked like they were getting rid of them as the price of $202 was far lower than anybody else, and they no longer have it available via amazon. Wish I would have been watching the renogy 200W suitcase (which is also gone) to see what kind of deal they had on it. After doing further research, I'm not sure 100W is going to meet our needs with two batteries to feed.

Was all gung-ho to do a larger roof install, but I'm not so sure now with that roof. I've been researching the heck out of doing a solar setup, but I should have saved my time and researched the roof first...:S Maybe I'll just add another 100w panel to the suitcase when using it...not sure. We are still in the return window for it. I haven't even opened it yet to inspect.

The types of setups that Healeyman and valhalla360 mentioned (to avoid the roof) sound like a good idea, but I'm not sure how involved I want to get with fabricating/welding etc..

EDIT: Looks like the long dimension of the renogy 100w panel is 47.3 inches. If the roof supports are indeed 4 ft apart, it would be close for screwing both mounting brackets into a support. Looks like the mounting brackets add roughly 1.5 inches, and I'm not sure how wide the roof supports are.

What to do, what to do.....:h