How are your solar panels mounted?

I made my own brackets out of aluminum angle bolted together. They get screwed into the roof. I was able to get a roof plan so that each mount is screwed through the roof into a wood rafter. Dicor under the foot of each bracket and around the entire foot once screwed down.

Instead of tilting my panels. I just put up a 4th panel to account for the loss that flat panels give. The less I go up on the roof, the less chance I have of falling off the roof.