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My room is about 25'x16', give or take a couple inches. My room is being built with a room in a room premise. Doubles walls around all four sides. Walls decoupled from the ceiling using IB3 clips. DD and GG for the walls and ceiling construction. The ceiling will be decoupled using IB1 clips and 7/8" 25 ga drywall channel. I am building 5 soffits; three of which will be inside the room shell after drywall, the two sides of the room and one in front of the screen, while the other two will NOT be inside the shell, but they will be part of the outer shell. Both soffits will run the entire width of the room, be about 12-14 inches in height and one will be almost 4 feet while the other will be a little more than 4 feet. THey will both be starting just inside of an I-beam and run to the wall, one at the front of the room and one at the back of the room.
Since the walls will not have clips and channels on them I know that if I tie in the soffits which are not decoupled from the ceiling, as the decoupling will be done with clips and channels, to the coupled walls that I am defeating some purpose here. What I would like to know is how much of a difference would this make? And what should I do here? I would like the soffit in the back of the room to be strong enough to support the projector as I will need to hang the projector off it somehow.
Sound coming in would have to transfer from the floor above to the soffit to the wall then through the DD and GG and vice versa. I am trying to soundproof and have money in doing so. I don't want huge holes in my room for doing so, but is this something I should be struggling with?
Since the walls will not have clips and channels on them I know that if I tie in the soffits which are not decoupled from the ceiling, as the decoupling will be done with clips and channels, to the coupled walls that I am defeating some purpose here. What I would like to know is how much of a difference would this make? And what should I do here? I would like the soffit in the back of the room to be strong enough to support the projector as I will need to hang the projector off it somehow.
Sound coming in would have to transfer from the floor above to the soffit to the wall then through the DD and GG and vice versa. I am trying to soundproof and have money in doing so. I don't want huge holes in my room for doing so, but is this something I should be struggling with?