I would agree there are a lot of holes, which initially concerned me, but Snap'n'rack mitigate the roof penetrations with a neoprene gasket over every lag screw and vents that confirm enough sealant has been used for each clamp. Their instructions state that if sealant isn't squeezed out of...
How do you like the TopSpeed system? I bought it but haven't installed it yet. I'm trying to figure out the best place to take the wires through the roof. On a regular rail mounted system you'd want the maintenance box near the gutters so you could access it with just a ladder and maybe moving...