By stating that all isolators and equipment bases shall be of the same manufacturer and shall be supplied to the mechanical contractor, the consulting engineer has placed the responsibility on a single source who will be concerned with the vibration transmission from all mechanical equipment in the building, rather than only those which they supply. When the specifier permits equipment suppliers to provide “appropriate” isolators, which are not manufactured under Kinetics’ high standards, he does not assure a satisfactory job, since different brands of isolators may be furnished and no one supplier carries the full responsibility for a building free of vibration and noise as specified
