The following standards apply to both residential condominium projects and residential condominium conversion projects.
(A) STC and IIC ratings must be based on the results of laboratory measurements and will not be subjected to field testing. The STC rating must be based on the American Society for Testing and Materials system specified in ASTM E90-66t or equivalent. The IIC rating must be based on the system in use at the National Bureau of Standards or equivalent. Ratings obtained from other testing procedures will require adjustment to the above rating systems.
(B) In documenting wall and floor/ceiling compliance with the required sound ratings, the applicant of the residential condominium project or residential condominium conversion must either:
(1) Furnish the Building Official with data based upon tests performed by a recognized and approved testing laboratory; or
(2) Furnish the Building Official with verified manufacturer's data on the ratings of the various wall and floor/ceiling assemblies utilized in the project.
(C) Field testing may be required for residential condominium conversions projects if the Building Official finds that it is necessary to verify the technical data submitted.
(Ord. 1169, passed 2-5-07)