water proof solar roof BIPV

I have a client that want her living room roof, to be made of solar panels.
we are in lates 2014 and I can not find a good search result on google for waterproof BIPV solar roof

There must be a racking company that makes waterproof solar frames for carports, canopy, pergolas, skylights, etc..

have any of you have any luck making a waterproof roof for a carport or any application?

I think maybe the unirac sunframe with some sikaflex sealant might work.

please give your advice and ideas