Knotty pine ceiling ect...

Hey guys, i have a two questions today, i have a few options as material for my live room ceiling, but have been considering changing to a knotty pine ceiling as in pics, i would just like to know based on experience how well this sort of material will work in sound isolation? my plan is to fill the rafters of my live room between the tiles and ceiling with rockwool and then use the knotty pine as my ceiling material? Another conseqeunce of using this material is that it is not absorbent and my floor is going to be laminate wood, is this a bad thing acoustically? (ie - wood floor, wood ceiling?) In short what im asking is: 1: Knotty pine - better for isolation than standard gypsom, asbestos ceiling? 2: reflective ceiling where a absorbent ceiling may be better? I intend to later add a room in this room design and add a absorbtive ceiling below the one i am now planning aswell as decoupled from it.

Pics the live room pic is an old one, im just using it to show the depth of the rafter that i intend to fill with rockwool, the ceiling will be on the bottom of the rafter.

You'd have to seal every single connection between all the pine panels in order to get it airtight, so I'd not go for that as the leaf closest to the rockwool. Just put a layer of gypsum and then add the pine panel. I'm not really sure but the pine panel in itself does not have any acoustic benefits in comparison to any other flat surface, except that it might look good. best a :arrow: