What is the best way to secure my collectors to the roof?

There are many ways that you can mount you collectors to the roof. Whether you choose a flush mount or tilt mount design you should consider using a rail system. A rail system allows you to take advantage of the rafters while not interfering with the exact location of the collectors. First, you should decide where you would like the collectors positioned and then begin by installation you roof hooks or brackets, upon which the rail will mount. Once you have secured your roof hook in place you can then install the remaining hooks. Be sure that you do not place your roof hooks more than 48″ apart for the same rail.
Each roof hook or hangar bolt, MUST be flashed using the flashing provided from the manufacturer. The Sunmaxx Xmount system is designed to be used without the need for roofing compound but can be used in conjunction with Henry’s roofing sealant.

For reducing the wind load you are better off going with a flush mount system. THis way you do not have to worry about the structural integrity of your roof as much, also, with a flush mount, there is more aesthetic appeal.

For reducing snow load you are better off going with a flush mount.

The losses that you will incur by going with a flush mount versus a slightly tilted panel rarely justify tilting your panel as long as your roof pitch is within 25 degrees of optimum.