HELP!! Has anyone ever poured precast concrete wall panels to sound proof a home theater? Say 4'x8' x1" thick I could pour them on basement floor 7 tilt up into place. they would weight about 400lbs each. I don't think sound would get through something like that? I would even use this for ceiling panels. they would rest on top of the wall panels?
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Sound proof panels
Has anyone ever poured precast concrete wall panels to sound proof a home theater? say 4'x8' x 1" thick. I work with concrete, you Could pour on basement floor 7 tilt up into place What do you think?
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HELP!! Has anyone ever poured precast concrete wall panels to sound proof a home theater? Say 4'xxi8' x1" thick I could pour them on basement floor 7 tilt up into place. they would weight about 400lbs each. I don't think sound would get through something like that? I would even use this for ceiling panels. they would rest on top of the wall panels?
"HELP!!"? Is this some sort of holiday concrete emergency? 
Yes, sound would still get through this. Concrete has about 3x the density of drywall, so it is theoretically better mass-wise. But it would be a real pain to work with compared to drywall.
- Terry
Yes, sound would still get through this. Concrete has about 3x the density of drywall, so it is theoretically better mass-wise. But it would be a real pain to work with compared to drywall.
- Terry
You wouldn't get me sitting under a home poured 1 inch thick slab of concrete.
But I guess you are talking about a properly supported slab. I recall seeing a wood frame house being built that had poured concrete floors. As I recall they had exterior grade plywood as the immediate subfloor. Then they ran PT lumber around the perimeter of every room and hall, put down a plastic sheet then poured the 1 1/2 inches using the perimeter frame as a guide. The walls had double thickness of lumber on the bottom to get a bottom plate above floor level.
It was all about quieting the floor. I imagine the floor joist system was sized for the weight.
But I guess you are talking about a properly supported slab. I recall seeing a wood frame house being built that had poured concrete floors. As I recall they had exterior grade plywood as the immediate subfloor. Then they ran PT lumber around the perimeter of every room and hall, put down a plastic sheet then poured the 1 1/2 inches using the perimeter frame as a guide. The walls had double thickness of lumber on the bottom to get a bottom plate above floor level.
It was all about quieting the floor. I imagine the floor joist system was sized for the weight.
hi Bob E, and happy holidays AVS,
1" of concrete would have the mass of perhaps 5-6 sheets of 5/8" drywall. So that's a good start, no question. However, it has insanely low internal damping (so it's quite resonant) and it conducts sound very well (which is why concrete is often a flanking noise liability).
If used in a decoupled wall arrangement, like staggered studs or double studs, and IF THE LOCAL BUILDING OFFICE APPROVES, you could attain really nice results. Use as a single panel (no air space, no insulation) or on a conventional wall where the panels are bolted directly to the wall, performance won't be as good.
But, on a decoupled assembly, like a double stud wall, all that mass will go a long, long ways.
on floors concrete (and gypsum concrete) are generally impact noise (footstep noise, something dropped on the floor, a sliding chair) liabilities. throw in tile and hardwood, and those hard surfaces are responsible for probably 95% of the impact noise reducing products around... but in combination with carpet the mass can be a good thing (carpet takes out the "ping" potential)
Brian
1" of concrete would have the mass of perhaps 5-6 sheets of 5/8" drywall. So that's a good start, no question. However, it has insanely low internal damping (so it's quite resonant) and it conducts sound very well (which is why concrete is often a flanking noise liability).
If used in a decoupled wall arrangement, like staggered studs or double studs, and IF THE LOCAL BUILDING OFFICE APPROVES, you could attain really nice results. Use as a single panel (no air space, no insulation) or on a conventional wall where the panels are bolted directly to the wall, performance won't be as good.
But, on a decoupled assembly, like a double stud wall, all that mass will go a long, long ways.
on floors concrete (and gypsum concrete) are generally impact noise (footstep noise, something dropped on the floor, a sliding chair) liabilities. throw in tile and hardwood, and those hard surfaces are responsible for probably 95% of the impact noise reducing products around... but in combination with carpet the mass can be a good thing (carpet takes out the "ping" potential)
Brian
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