Roof mounted solar arrays are an excellent choice for solar installations.
Residential Roof Mounted
Roof Mounts are attached directly to the roof. Each rack comes with flashing and they are generally placed on a south facing roof, although, east and west roofs can be used at not much sacrifice of solar electric based on the use of the right equipment.
Considerations for Roof Mounting
Size of Roof
Soundness of Roof
Slope of Roof
Building & Zoning Rules