Interlock Metal Roofing - AB

We had a metal roof installed after purchasing our new-to-us home as it was going to need a new roof and, more importantly, we wanted any roof installed to be a good choice for the environment. I still believe the roof was a better choice than asphalt BUT now that I am trying to organize Solar panels (again- to help the environment and save both money and use of fossil fuels) I fully regret the choice of THIS metal roof - several solar companies would not even offer a quote due to the restrictions roof company would place on brackets & their insistence on them being the installers of those very specific brackets. The companies who did offer quotes and service were so high priced (yet on top of that WE have to pay roof company for installing each bracket or we void the warranty, we are told).
So much for helping the environment with our selection of a metal roof.