Wow, congratulations for finally resorting to getting solar!
I mounted my panels just high enough to get a brush under them to clean the roof...
I just used 3x3 aluminum L stock to fabricate my roof brackets. In the panel corners I used 2x2 aluminum L to re-enforce the corners glued and bolt/nutted. Then I mounted my 3x3's on that.
Luckily my camper's front is slightly tilted down so no problem with the pooling dirt and water. Also my roof is arched so my panels are slightly tilted to the side.
I thought I might want to tilt them so I did not secure the panels to the roof brackets with bolts n nuts, I used pins. Never needed to tilt. All the way to Prudhoe bay!
Link to more detail of my install:
http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/24783458/gotomsg/24787554.cfm#24787554Note how many cells I have on my panels... 100watts each.
Jim
