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BlueAx · 6th May 2009

Hey there,

I'm building a control room in my parents basement. Nothing insanely fancy, simple 2x4 stud walls with 5/8" drywall (one of the walls built will be doubled up with addition 1/2" drywall). Putting in a 32x80 door and a 4'x3' window. The room is about 11' x 13'. But I plan on treating it to get the best sound possible (without having a huge budget).

Here is my question. I'm looking to get as much as possible sound "proofing" and overall just the "best" solution for a simple ceiling set up. The general idea is stuffing insulation between the rafters (2x8s) and hanging some material on the ceiling to cover it up. I'm not really looking to put drywall up there as I've been told that'll open up a whole new batch of problems acoustically, and I don't want to open that can of worms.

I was recommended the use of Roxul AFB sound control material. Apparently this is about 3" thick-- but comes in different densities? I've been told it can get pretty "dusty" and I don't want a ton of that falling down into the room. Perhaps someone can enlighten me if I can get the softer-ish stuff and stuff that up top in the rafters, and then stuff another layer of more dense roxul afb below that, and then hang a material (recommendations of types?) from the ceiling.

There is also a few air ducts that are passing into the room. There are gaps near the ceiling/at the top of the new wall that need to be "filled in" by putting some dry wall up, but these ducts can't be handled like that. The idea for these was for the longer duct, stuffing it all with insulation in that space and then sealing it up with a long piece of drywall. The other duct actually has a vent, so the idea was to build a drywall box around it (after removing part of the duct with the vent) with Owens Corning 703 wrapped in material inside the box, then covering the rest of the duct that is in the room with a piece of drywall.

I attached some pictures of what's going on at this point.

Opinions on the whole thing are appreciated, but I think my main question is about the insulation for the ceiling. Two different densities of that Roxul AFB (if I was understanding that correctly and there is such a thing), and then attaching a material (specific type?) to the ceiling... not too thick as to let sound get through, but not a bunch of dust/insulation particles.

Any help/info is appreciated. Thanks!

6th May 2009	#1
BlueAx Gear Head Joined: May 2009 Posts: 56 Thread Starter	Ceiling Insulation Question + Ducts Hey there, I'm building a control room in my parents basement. Nothing insanely fancy, simple 2x4 stud walls with 5/8" drywall (one of the walls built will be doubled up with addition 1/2" drywall). Putting in a 32x80 door and a 4'x3' window. The room is about 11' x 13'. But I plan on treating it to get the best sound possible (without having a huge budget). Here is my question. I'm looking to get as much as possible sound "proofing" and overall just the "best" solution for a simple ceiling set up. The general idea is stuffing insulation between the rafters (2x8s) and hanging some material on the ceiling to cover it up. I'm not really looking to put drywall up there as I've been told that'll open up a whole new batch of problems acoustically, and I don't want to open that can of worms. I was recommended the use of Roxul AFB sound control material. Apparently this is about 3" thick-- but comes in different densities? I've been told it can get pretty "dusty" and I don't want a ton of that falling down into the room. Perhaps someone can enlighten me if I can get the softer-ish stuff and stuff that up top in the rafters, and then stuff another layer of more dense roxul afb below that, and then hang a material (recommendations of types?) from the ceiling. There is also a few air ducts that are passing into the room. There are gaps near the ceiling/at the top of the new wall that need to be "filled in" by putting some dry wall up, but these ducts can't be handled like that. The idea for these was for the longer duct, stuffing it all with insulation in that space and then sealing it up with a long piece of drywall. The other duct actually has a vent, so the idea was to build a drywall box around it (after removing part of the duct with the vent) with Owens Corning 703 wrapped in material inside the box, then covering the rest of the duct that is in the room with a piece of drywall. I attached some pictures of what's going on at this point. Opinions on the whole thing are appreciated, but I think my main question is about the insulation for the ceiling. Two different densities of that Roxul AFB (if I was understanding that correctly and there is such a thing), and then attaching a material (specific type?) to the ceiling... not too thick as to let sound get through, but not a bunch of dust/insulation particles. Any help/info is appreciated. Thanks! Attached Thumbnails