Live Room Isolation Advice

[wrenderos]

Hi,

I currently have a one room project studio located in a warehouse space in Massachusetts and am expanding by adding a "live" room. I am currently in the process of doing some construction to the room, and my goal is to isolate this room as much as possible so that sound does not get in or out of the room in order to be able to get clean recordings. I have some thoughts on what I'd like to do, but would greatly appreciate any advice. Here is some information on the room:

Background on room:
My studio is in the 2nd floor of a large warehouse space containing 8 small and medium sized individual rooms used by visual artists and myself. Below us are a few mechanics and a carpenter, but no one is directly below what will soon be the live room - so sound transmission from below could easily be minimized. This new room is separated from the "control" room by a hallway (about 3-4 ft wide) where people walk to either get to their rooms or to the gallery space at the other end of the warehouse. Foot traffic is very minimal during the weekdays, but can get somewhat heavy during the weekends when receptions are being held at the gallery.

Goals:
1.) Minimize the amount of noise getting into the room (from people in the hallways and ceiling).
2.) Most recordings will be of vocalists and guitar players. Every now and then, I may record drummers, but not often. I would like to minimize the amount of noise getting out from the sides of the room into the hallway and adjacent room. I'm not concerned as much with sound transmission to the floor below as the tenants have expressed that they do not care about noise. The roof is above us so there is no one above us. Neighbors around us are all warehouses.

Dimensions:
These are the dimensions of the room without any interior drywall.
Length = 194” (16' 2")
Width = 116" (9' 8")
Height = Approximately 11' (The roof has an incline. Lowest part is probably 10 1/2 ft)

Room Setup:
* 2 walls (one long and one short wall) of the room have the hallway on the other side.
* The other long side shares a wall with the adjacent room.
* The remaining short side is part of the exterior of the building. It is a brick wall with a big window.

Ideas for Construction:
1.) Seal window by using a vapor barrier, 4" of roxul 60, and 5/8" drywall.

2.) Use Roxul Safe-N-Sound insulation in wall cavity between metal studs. For interior wall, install Kinetics IsoMax Isolation Clips on metal studs, and use furring channel with 2 layers of 5/8" drywall. Seal gaps with Green Glue and cover electrical outlets with putty.

3.) The room has one door which appears to be a metal commercial hollow door. I'm not sure how to add mass to this door and seal it. Unfortunately, I can't really afford an acoustic soundproof door at this time.

4.) HVAC system will be a mini-split system so no duct work will be used.

5.) The ceiling has no insulation and is just the wood planks that are attached to the roof. Rain noises can easily be heard, as well as airplanes when air traffic is redirected due to fog or rain. I am thinking of install a drop ceiling system and using acoustic ceiling tiles such as the SilentCeiling Black ones.

6.) I am planning on leaving the existing drywall (1/2") intact on the 2 sides sharing the hallway and on the side of the artist's room. However, I am thinking of adding a 2nd layer of drywall if I do need additional mass to the walls.

7.) Connections to the control room will be made via a snake run through the ceiling.

Attached is a picture of the space at this time, taken from the entrance. Any advice/feedback would be greatly appreciated.

Thanks,
Wil