The trusses, if you could call them that, for the back deck are all up now (though not in this picture).
The roof is almost all sheeted. They'll keep working on it today and finish it up tomorrow. The deck roof doesn't get sheeted, it gets those pieces of wood that you'd normally put on the floor of the deck on top of these beams so that it looks nice from the bottom. Then on top of that they do the shingles.
Due to the snowy weather Brian and Jeff will not be here until Monday to put the shingles on the roof.