Quote:
Originally Posted by
xzener 
I'm planning on starting the drywall on the soffit today. I have a couple questions...
What is the best way to tape and mud new drywall with existing drywall??
When I took out my chandelier, I cut back the existing drywalls paper back giving me room to tape and mud. Should I do this around the soffit too?? The areas marked in red in the picture show the areas I would cut and strip down to paper, giving me room to tape and mud. Would this be the correct way to do this??

Or, should I just tape and mud over the existing texture and paint??
You do not need to strip down any paper with paint on it, but if the ceiling is textured you should scrape it down and sand it a bit so when you mud the seam, it is semi flat, then you can reapply the texture back as needed.
As for the crown, if you are using a brad nailer, I would use some reinforcement on the back of the crown in the form of one of those 2x2's you have. Brad nailers rock for wood trim and dont pull out, but the foam, it can come loose. Granted, with the corners of the room supporting each othere where the crown meets, you just need to worry about the long runs in between.
btw..I love how you made the soffit, very functional!