While some community building inspection departments require field-testing to be conducted before a certificate of occupancy is issued, many, if not most, do not. The Building Codes also state that validation of the minimum noise criteria can be field measured and the field measurements shall not be less than a 45 FSTC or a 45 FIIC. The Building Codes specify a minimum architectural design standard of privacy of 50 STC (Sound Transmission Class) and a 50 IIC (Impact Isolation Class). After the fact, when the noise problems are discovered, solutions can be very difficult and expensive to resolve and in most cases, there is no easy solution.įor newer or remodeled multi-family dwelling units, the various Building Codes throughout the United States require a measure of sound insulation between floors of multi-family dwellings. Sad to say, for newer residential units many of the problems could have been prevented in the first place if good acoustic design principles had been followed during the design and construction process. The noise control problems associated with floors and ceilings range from airborne noise transmission from voices TVs and music to footfall impact noise and from plumbing noise. The problems range from noise transmission by noisy upstairs neighbors, through adjacent party walls between neighboring units or through windows. Not the least of these inquiries have been from owners or renters in apartment complexes, townhouses, apartments, and offices. We are overwhelmed with questions about noise and acoustical problems. Noise control in residential buildings is one of the most common inquiries we get in our website’s “What’s Your Problem?” feature.
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