Direction of Your Roof
The direction your roof is facing is important due to the fact that typically solar panels will lay flat as opposed to being tilted. Therefore, the panels will by default be facing in the same direction. We recommend that the panels be installed on a roof facing in the southern direction if possible, as they will receive maximum sunlight during the daylight hours. This is the case in Tempe as well as any other location in the northern hemisphere. If for any reason a south-facing roof is not possible, you can still receive major solar benefits from panels oriented in another direction. If this is your case, our solar blueprint will take into account other avenues to maximum solar benefits such as expanding the total area of the panels used.
Age of Your Roof
Roof age is typically linked to roof condition, but in some cases an old roof might be maintained very well and won't exhibit signs of deterioration. To be sure, you could always have a professional roofer evaluate the roof for damage that may not be apparent to an untrained eye.
Generally, an easy rule is that when the roof is reaching the end of its life as suggested by the contractor who installed it, it's probably a good idea to seriously consider roof replacement before beginning the solar process.
If on the other hand your roof is newer, then it's likely in good shape and you can move forward. The only exception would be if your roof was damaged in a storm or extreme weather event, in which case we recommend you address the damage first.