Making a folding roof over my generator

I’m building a hinged roof over my backup generator. It fuels from the top and I want to protect the generator from rain, but I’ll need to be able to tilt the roof up so I can pour gas into the generator from the top. One more day and the entire project will be done. I may even give the little genny a trial run.
Champion dual fuel generator

https://amzn.to/461DJHg