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-   -   Crown Molding (http://www.diychatroom.com/f19/crown-molding-168448/)

bcgfdc3 01-07-2013 12:23 AM

Crown Molding
 
Hello all,
I just put up all new drywall in my living room and I was thinking about using crown molding at the ceiling.

My question is that if I am using crown molding do I still need to mud and tape the ceiling/wall joint?

Thanks

joecaption 01-07-2013 12:32 AM

Yes to seal the envelope, other wise air will leak into the attic.
But you can get away with just one coat of mud.

bcgfdc3 01-07-2013 12:35 AM

I appreciate the fast response and understand what you are saying but prior to hanging my drywall I added a 6 mil vapor barrier that came down about 6 inches onto the walls where I glued it to the top plates.

I will still proably add the mud and tape anyways, just curious if I had too.

oh'mike 01-07-2013 05:03 AM

Yes,you do---that single layer of tape and mud is called 'fire tape' and will slow down the advance of a fire into the plastic you used as a vapor barrier.


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