Originally Posted by Elill
I'd go clips straight onto block wall if I did mine again. Probably dont need insulation in there?
No point in doing the walls if you dont do the ceiling.......
Fire rated or acoustic sealant is what you use for the joins.
How particular do you want to get with the floor? ideally do what PeterM is doing - angelstep from acoustica and then two layers of sheeting with GG in between.
You doing GG/DD? You can buy it cheaper from the US and ship here.....if you want to buy locally call Ultrafonic and ask advice/buy from them
From what I have read the insulation forms an absorption layer in the cavity between the isolated surface and wall. The only downside is that I would lose 180mm across the walls, and it would increase cost. I could still split some batts and install them in the depth of the Furring channel + clips.
I will be using the Green glue in between the layers of Gyprock (I think they call it drywall on here), and I will definitely be doing the ceiling as well. The ceiling currently has a gyprock layer screwed into timber battens cast flush into the first floor slab. I was hoping to be able to screw the isolating clips straight into the battens.
You are saying I need fire rated acoustic sealant for the joins - what joins are you referring to here? I'm guessing these are the corners where the gyprock comes together so there is no losses through the gaps?
For the floor I was just going to carpet it. There is going to be a stage at the back and front, so only a small area will actually be carpet on concrete.
Here's a little model I did up. It is a constantly evolving work, in progress at the moment, and I'm still trying to get my head around the bob golds calculator and room modes. Still tossing up whether to go with one or 2 rows at the moment. I was going to lay everything out this weekend and see how it works in the room. The first row would be 3m from the screen which is just about perfect for the ~115" or so I will have available. The second row is not in an ideal position but it would be very nice to include.
Perhaps I should move this to a build thread?