Not much to report here. After the last post I also added res bar to the ceiling.

The biggest concern going is DO NOT SCREW THROUGH THE PLASTERBOARD INTO THE BATTENS. If you do, you will add an acoustic brige and that res bar is suddenly useless (not to mention expensive and complicated).

To expand: If the screw touches both wood and plasterboard, they become one joined acoustic surface and any vibration in the wall is now transmitted straight into the room.

The only thing I did which was a tad unusual is use Silicone to seal the plasterboard layers to each other. I seem to have gotten away with this but it could have been a big mistake as I really had no idea whether the acetic acid that stuff gives off when curing would mess up the plaster. As it was, I got away with it, although it seems to have had a slightly iffy reaction with the acoustic membrane.

Basically, I should have used something like decorators caulking.

 

I got a professional to do the plastering.

I group plastering with golf:

• You have to do the same, ostensibly boring, thing over and over again.
• Just one cock up can massively ruin your whole session.
• Other people are good at it and, perversely, some of them even seem to enjoy it.

Without further ado, I give you…. pink walls: