Even though STC and SRC suggest how very well noise passes by unique supplies, NRC (Noise Reduction Coefficient) steps how well supplies prevent sound from reflecting (just how much sound they're able to absorb). The NRC is The proportion of sound that a floor absorbs (Basically, hits a surface and https://hectorwhnxc.blogsvirals.com/31274675/a-secret-weapon-for-thermal-performance