What to do first: paint exterior, install windows, or new roof?

I have three projects to do, but I don't know the best order to do them in. The house is horizontal cedar siding which is being repainted a new charcoal color instead of tan. New fiberglass windows will be black with white trim. New roof is changing from shingle to black standing seam metal. Gutters and trim are all tan and will need replaced or painted white.

What is the best order to do these three projects so they don't hinder or interfere with each other?