Gents (and Ladies),
I have to admit, it has been a long time since I lurked this forum as I have been through several moves in the last few years. We have decided to buy a new house that has a dedicated media room. Unfortunately, I have been out of the loop so much so that I don't know exactly where to start in order to get where I want to be. I'll be doing a lot of research to help myself, but with the time crunch, I need to just flat out ask for answers that I know have already been answered many times over dealing with the construction of the room.
Attached is a crude layout of the room that I am working with. There are three exterior walls with one of those walls that opens onto a veranda through french doors. The fourth wall, an interior wall, adjoins a closet for a room that won't be used much and not as a bedroom. There is a media closet that will make up the rest of the wall. The house is a one story (attic space above this room).
My builder has little experience with this type of work and wanted to just put cellulose insulation in the walls.
The first few questions that I have deal with soundproofing the room.
Is there any special kind of soundproofing that needs to be done for the exterior walls? These walls are brick on the exterior and don't have any windows, just the french doors mentioned above. Does the brick supply enough mass to keep the sound from escaping and bothering the neighbors or those outside?
As far as the interior wall, I have talked the builder into doing a staggered stud wall (2"x6" base, staggered 2"x4"s). I plan on convincing them to use Green Glue with double sheetrock along the walls that butt up against the adjoining room. He mentioned blowing cellulose insulation in the staggered stud cavity for soundproofing.
Should the sheetrock along the exterior walls be treated the same as the interior wall or just the one layer normally hung? If it isn't treated the same, does it change the sound characteristics?
Should I go with Quietrock instead?
Is the cellulose insulation a good sub for the Green Glue with double sheetrock? If not, and the Green Glue is used, do I need the cellulose insulation still? I have read where the regular pink fiberglass rolls are just as good in the staggered stud wall with Green Glue walls.
In regards to the ceiling, I really doubt I can convince the builder to go with a way of decoupling the drywall from the beams. Would double drywall with Green Glue keep the sound from going through the attic and bothering others in the house?
I really appreciate help with this especially considering I know most of this has been answered before. If others are interested, I'll update this thread throughout the build with pictures, questions, and results.