interesting - always thought sound proofing's achieved by insulation - eg, interior walls w/offset 2x6 studs & f/g insulation, foam on walls, etc,,, NOT like noise level at lopez' legacy restaurant where 1 needs to sign,,, cmu walls lack voids facing source of sound,,, we blt some structures using insulated conc forms ( essentially foam cmu ),,, terrific payback in utility cost, strength, & low noise,,, they don't use icf's in tv & not aware there're any poured conc walls in anything down here,,, are there ? where ?
|