I've got Heliocol solar panels on an asphalt shingle roof. I've also got large oak trees very close to the house. Because both the panels and the piping that takes the water to/from them are mounted directly to the roof, both (though mostly the supply pipes) trap leaves. These end up trapping water, and I'm starting to worry that the accumulation of damp rotting leaves is going to damage the roof. I'm curious if there are options for mounting both the panels and supply pipes on some sort of risers that would allow the leaves that hit the roof to flow down the roof under the pipes and panels...so all I have to worry about is cleaning the leaves out of my 6" "super gutters" that collect leaves.