Attaching gooseneck molding correctly?

[ows]

How do you do it? Attach to the wall or ceiling or both?

I know from experience that double-mounted trim is impossible to dismantle without breaking something.

"Not supposed" to dismantle these but what is correct??

 

[Ola78]

I've read somewhere that according to AMA, ceiling moldings with a width over 55 mm should be nailed on both edges. I always do that myself, as I think it gives a better result and you get the molding properly aligned against both the wall and ceiling.

 

[basseman]

Both sides and the nail gun ensure there are not too many swear words when installing this molding. Latex sealant makes it easier when the carpenter makes a mistake. In my opinion, this molding should be banned.

 

[apotekarnes]

If you let a strip go all the way to the wall and contour saw the other, you won't need any latex sealant. http://www.youtube.com/watch?v=W02ZLlnSXXY&feature=related