Necessary to tape ceiling-wall joint if installing moulding?

Question

Just got my drywall up in a room that I will be installing crown moulding in.
Is taping the joints where the ceiling meets the wall necessary if its just going to be covered up? I've heard mixed answers, some including just using a single layer of firetape.

Ecnerwal · Answer

You can do what you like unless local codes require otherwise.
It does not have to be pretty, since it will be hidden, but two benefits of bothering to tape and mud the joint (at least crudely) are better fire performance and not making life easier for your insect friends crawling around the house. A third would be somewhat less air leakage.

Necessary to tape ceiling-wall joint if installing moulding?

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