8" concrete masonry construction at briarcliff apartments

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standard wood construction in average apartment community

Loud conversation may be faintly heard through a wall with a Sound Transmission Class (STC) Rating of 45 decibels.
— Practical Builder Magazine, January 1964

Thanks to the 8" solid concrete masonry construction surrounding every apartment, the walls of Briarcliff Apartments have a Sound Transmission Class (STC) Rating of 64 decibels. Federal Housing Administration (FHA) requires walls of 50 decibels. Briarcliff Apartments surpasses this requirement, making the units virtually soundproof and fireproof.