Quote:
Originally Posted by avare  What is your question? |
If you will be building on a concrete slab on grade or on a concrete basement slab, you automatically have the benefit of the dampening effect of earth against your concrete. The concrete is not going to be good conductor of energy because it's got the equivalent of thousands of "hands" pressing against it to keep it from "ringing."
If your slab is of good quality and suitable for construction, then you should be able to build on it without much risk of the slab being a significant transmission (flanking) path of structure-borne noise.
Rod Gervais, author of
Home Recording Studio: Build it Like the Pros, writes about this in his book.
Rod Gervais wrote:Except for in very weird cases (i.e.: highly hydraulic earths with high water content - OR the inverse of that - both you and a neighbor have your foundations pinned to the same run of bedrock) the amount of transmission you receive in the upper level of the home or outside of the house - is VERY small coming from this slab. It just takes too much energy to move it that much....
It's the airborne sound that transmits through the deck - deck assembly, windows, doors, ducts, pipes, holes, etc., etc., etc. that cause 99% of your problems.
For existing slab on grade I am a firm advocate of leave it alone.
(Source)
So, if you're planning to build your studio on concrete that has firm connection with earth, you most likely don't need to float your
floor(s)/room(s).
And then once again, my idea was/is to "float" only the walls and the ceiling and to use some neoprene/gum/rubber band etc material between the walls and the concrete floor of the basement....
Any comment on this ???