Quote:
Originally Posted by Denverite
Not really. I worked on during construction, worked in (my office), and lived in buildings with, approximately, 6" of concrete floors and there is very little sound travel unless you are really banging away - and I've never heard any "amplification" by concrete (I don't think that's actually possible) - it can conduct sound though, but the sound weakens with respect to distance.
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Yeah, sorry that wasn't very clear... Clarification: In my experience the materials the building were built with don't matter much, because as a general rule your upstairs neighbors will find a way to annoy you.
I've lived in a stick-built and the people upstairs sounded like they were playing marbles with a giant spider. I lived in a concrete and steel building and the neighbors would wake up every Saturday at 7am to drop large weights onto the floor (carpet wasn't even close enough to dampen the sound).
The noise may be less with concrete, but since most apartments are cost-engineered and flimsy, and the only way to guarantee that you won't be hearing your neighbors is to pay top dollar for a place that added space or material to act as a baffle between floors and apartments. I lived in 1350 Grant 15 years ago when it first opened and the concrete floors meant that you couldn't hear your neighbors walking around, but the exposed ceilings turned every apartment into a speaker and when paired with thin walls it let me listen in on my neighbor's phone conversations. It'll still be standing in 100 years, but until they improve the interior it's going to be annoying to live there.