A. General Provisions of the Contract and applicable requirements of Division 1 and this Section apply to the work specified in this section.

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1 PART 1 GENERAL 1.1 SCOPE A. Provide and adjust all vibration isolation components and materials required to isolate the building structure and occupied spaces from vibrating equipment as specified by this section. 1.2 RELATED DOCUMENTS A. General Provisions of the Contract and applicable requirements of Division 1 and this Section apply to the work specified in this section. 1.3 SUBMITTALS A. Submit complete product data to the architect in accordance with the General Provisions of the Specifications before any materials are delivered to the job site. B. Submit to the Acoustical Engineer shop drawings showing the following information so that isolation system can be checked for compliance with the specifications: 1. Sizes, placement and type of isolators, seismic snubbers, and total base mass (weight) if it is a concrete inertia base. 2. Weight distribution on isolators. 3. Isolator schedule to show size, type, load, and static deflection of each isolator. 4. Number and color-code of each isolator to show its location. 5. Isolator adjustment procedures for setting and adjusting the isolation devices so that the isolator mount selections can be checked for compliance with the specification. C. When manufacturers provide equipment bases, submit calculations verifying factory base stiffness is equal or equivalent to stiffness of base specified in the Vibration Isolation Schedule. 1.4 EQUIPMENT VIBRATION ISOLATION A. The installing contractor to furnish a balanced set of vibration isolators for each piece of equipment listed herein. B. Isolation work to include, but not necessarily be limited to, the following: 1. Inertia base frames in conjunction with isolation. 2. Penetration isolation of conduit, wiring, and cable trays through walls, floors or ceilings. 3. Flexible connections to equipment. C. Installing contractor to provide any components or materials not specifically mentioned herein, but necessary to the proper vibration isolation of the equipment. 1.5 ACCEPTABLE MANUFACTURERS A. Amber Booth B. Mason Industries, Inc. C. Kinetics Corporation D. Approved equal, meeting all of the conditions and requirements specified herein. 1.6 CONTRACTOR RESPONSIBILITY A. All vibration isolation devices, including auxiliary steel bases and pouring forms, shall be designed and furnished by a single manufacturer or supplier. B. Installing contractor to furnish a balanced set of vibration isolators for each piece of equipment listed in the Vibration Isolation Schedule MAHLUM PERMIT SET Issue Date: 11 SEPTEMBER 2015 PAGE 1 OF 6

2 C. Installing contractor to procure from the vibration isolation manufacturer instructions and procedures on how to install and adjust vibration isolators. D. Adequately restrain all equipment to resist seismic forces. Design and select restraint devices to meet seismic requirements as defined in the latest issue of the Uniform Building Code and applicable state and local codes in accordance with project area Seismic Zone with a minimum restraint capability of 1.0 g. E. Coordinate with the structural engineer to ensure mounting attachment points for seismic restrained springs and seismic snubbers will withstand forces generated from the maximum acceleration rating of the restrained springs and snubbers. F. In addition, the contractor shall have the following responsibilities: 1. Select, install, adjust, and verify the performance of vibration isolators that will meet the requirements given on the plans or in the specifications. 2. Bring to the Acoustical Engineer s attention any equipment specified for the project that is not covered in the Vibration Isolation Schedule herein. 3. Provide whatever assistance necessary to ensure correct installation and adjustment of the isolators. G. Changes or additions necessary to meet the requirements given on the plans or in the specifications are to be made without any expense to the owner. 1.7 QUALITY ASSURANCE A. Isolators shall operate in the linear portion of their load-versus-deflection curve. B. The ratio of lateral to vertical isolator stiffness to be not less than 0.9 nor greater than 1.5. C. Bring to the attention of the Acoustical Engineer any discrepancies between this Section and other related documents. PART 2 PRODUCTS 2.1 MATERIALS A. Where exposed to the atmosphere, all steel to be finished with dry powder coating for corrosion protection; hardware (bolts and capscrews) to be Zinc electroplated; springs to be dry powder coated. 2.2 ISOLATORS A. Type N-2: Neoprene Seismic Mount 1. Captive neoprene mounting shall consist of a steel housing with a captive steel insert embedded in neoprene to prevent contact between the housing and the central threaded insert. 2. Isolator shall contain a cast-in tapped steel load plate to permit bolting to the supported equipment. 3. Snubbing to limit deflection in upward, downward, and horizontal directions. Capacity to withstand not less than 1.0 g without noticeable deformation. 4. Isolators shall be selected to provide the minimum operating static deflection tabulated in the Vibration Isolation Schedule, while not exceeding the published load capacity for the isolator used. 5. Isolator shall have a minimum deflection of 0.15 inch. 6. Each isolator shall be color-coded to identify the load capacity. 7. Acceptable Products: a. Model RCA, RBA by Mason b. Model RQ by Kinetics B. Type N-4: Neoprene Pad 2015 MAHLUM PERMIT SET Issue Date: 11 SEPTEMBER 2015 PAGE 2 OF 6

3 1. Isolator shall consist of 5/16-inch to 3/8-inch thick molded neoprene. 2. Pad to either be a ribbed or waffle type construction. 3. Isolator shall have a 40 to 50 durometer rating. 4. Isolator shall be loaded to limit surface pressure to a maximum of 50 psi. 5. Isolator to be equipped with a steel plate bonded to the neoprene pad if required for proper load distribution. 6. Acceptable Products: a. Model W, WM by Mason b. Model NPD, NG by Kinetics C. Type N-5: Neoprene Pad 1. Isolator shall consist of 3/4-inch thick molded neoprene. 2. Pad to either be a ribbed or waffle type construction. 3. Isolator shall have a 50-durometer rating. 4. Isolator shall be loaded to limit surface pressure to a maximum of 50 psi. 5. Isolator to be equipped with a steel plate bonded to the neoprene pad if required for proper load distribution. 6. Acceptable Products: a. Model Super W by Mason D. Type H-1: Spring Hanger 1. Hanger to consist of a combination of a steel spring and a fiberglass or neoprene isolator placed in series and encased in a welded steel bracket. 2. Isolator to have minimum operating static deflection as tabulated in the Vibration Isolation Schedule. 3. Isolator shall be designed to carry five (5) times overload without failure. 4. Spring shall have minimum additional travel to solid equal to 50% of rated deflection. 5. Isolator to be installed to allow up to fifteen (15) degrees of rod misalignment without metal-to-metal contact or other isolation short circuit. 6. Acceptable Products: a. Model 30N by Mason b. Model SRH by Kinetics c. Model BSRA by Amber Booth 2.3 MISCELLANEOUS SUPPORT A. Type WB-1: Neoprene washers and bushings 1. Washer-bushing shall be manufactured of bridge bearing neoprene. 2. Washer-bushing maximum loading not to exceed 1000 psi. 3. Washer-bushing to be used such that direct contact between bolt and equipment is eliminated. 4. Acceptable Products: a. Model HG by Mason B. Type CS-1: Cushion Sleeve 1. Fiberglass sleeve sized to fit pipe. 2. Acceptable Products: a. Owens Corning Fiberglass 25 ASJ/SSL Service Jacket, or approved equal. b. Johns Manville Micro-Lok Fiberglass Pipe Insulation, or approved equal. C. Type CVI-1: Individual conduit 1. Isolate conduit from structure using type CS-1 sleeve MAHLUM PERMIT SET Issue Date: 11 SEPTEMBER 2015 PAGE 3 OF 6

4 D. Type CVI-2: Conduit grouped on unistrut 1. Isolate unistrut from structure using type N-5 neoprene pads with WB-1 neoprene washer bushings. 2. Alternatively, the unistrut can be rigidly attached to structure if each conduit is isolated from the unistrut with type CS-1 sleeve. 2.4 MISCELLANEOUS PRODUCTS A. Acoustical Insulation 1. Fiberglass a. 1/2 to 6 thick low density unfaced fiberglass batts. b. Acceptable Products: c. Standard by Owens Corning 2. Mineral Fiber a. 2" to 3" thick mineral fiber insulation batts. b. Acceptable Products: c. "Thermafiber" by U.S. Gypsum Company, or equal - fire rated. B. Acoustical Sealant shall meet the following requirements: 1. Sealant shall be a paintable, non-hardening, non-bleeding, non-drying, resilient caulk. 2. Acceptable Products: a. Acoustical Sealant by U.S. Gypsum Company b. Acoustical Sealant BA-98 by Pecora Corporation c. Fire Barrier 2000" by 3M Vibration Control Systems - fire rated d. Non Sag Firestop Caulk (Part # AA-529) by Nelson - fire rated e. CP 606 by Hilti - fire rated f. Tremco Acoustical Sealant - LEED Approved C. Intumescent Firestop Pillow PART 3 EXECUTION 3.1 GENERAL 1. The firestop pillow shall consist of a monolithic (one piece) core that is encapsulated on all sides by a flexible intumescent coating. 2. The firestop pillow shall not contain any loose fiber fill. 3. The pillow shall be UL Classified and/or FM Systems Approved and tested to the requirements of ASTM E814 (UL1479). 4. Acceptable Products: a. SpecSeal Firestop Pillow by STI A. Isolate Electrical equipment from the building structure by means of vibration isolators as scheduled herein and on the Drawings. If there is a conflict between the drawings and the Vibration Isolation Schedule herein, bring this conflict to the Architect and/or the Acoustical Engineer s attention. B. Install isolation systems (isolators, bases, and related hardware) in accordance with the manufacturer s written Installation Instructions. C. Isolated equipment mounting systems must permit equipment motion in all directions. D. Adjust or provide additional resilient restraints to flexibly limit equipment lateral motion to 1/2 inch during startup and operation MAHLUM PERMIT SET Issue Date: 11 SEPTEMBER 2015 PAGE 4 OF 6

5 E. Prior to startup, clean out all foreign matter between base, isolator, equipment, and mounting surfaces. Verify that there are no rigid connections between equipment and building structure that degrade the vibration isolation systems specified herein. F. Align isolator rods to clear the isolator housing. G. Unless otherwise directed by this document, suspend isolators with the isolator hanger housing attached to or hung as close as possible to the structure. H. Do not use wall, floor, or ceiling penetrations to support conduit, wiring, or cable trays. Support conduit, wiring, or cable trays just prior to and just after the penetration, so that the penetrating element is centered in penetration. I. Do not allow contact between isolated conduit or cable trays and non-isolated equipment or structure. Isolated conduit or cable trays include the isolated portions of their supports or hangers. J. Bring to the Acoustical Engineer s attention prior to installation any conflicts with other trades which will result in unavoidable rigid contact with equipment or piping as described herein, due to inadequate space or other unforeseen conditions. Corrective work necessitated by conflicts after installation will be at the responsible contractor s expense. K. Size anchoring bolts to isolators or snubbers withstand seismic lateral shear and tensile failure and isolate bolts from direct contact with the structure using Type WB-1 isolator. 3.2 ISOLATION OF EQUIPMENT AND PANELS AT PARTITIONS ADJACENT TO OCCUPIED SPACES A. In all electrical rooms, isolate electrical equipment, panels, and devices mounted to partitions adjacent to offices and classrooms as follows: 1. Isolate the supports for equipment mounted to the floor with N-5/WB-1 isolators. 2. Isolate the supports for equipment mounted to the wall with N-2 isolators. 3. Isolate cable and conduit mounted to the partition with CVI-1/CVI-2 isolators. 4. Different sections of conduit or cable requiring the same type of isolator with the same minimum static deflection may be supported on a common Unistrut support that is isolated with the same type of isolator. 3.3 ELECTRICAL EQUIPMENT ISOLATION A. Conduit Isolation 1. Use flexible electrical conduit to isolate all electrical connections to vibration isolated equipment. 2. Do not use conduit clamps or hangers at the flex conduit. The first point of contact with any wall should be past the flex conduit. 3. Flex conduit shall be no shorter than 3 feet in length. 3.4 PENETRATION ISOLATION A. Scope 1. Penetration requirements identified in this section will be applied to all walls, floors, and ceilings of the following rooms: B. Method a. ELECTRICAL ROOMS CONTAINING TRANSFORMERS 1. Isolate all conduit and cable tray penetrations as follows: 2. Conduit Penetration Isolation at Fire-Rated and Non-Fire Rated Partitions For Conduit Greater Than 2 Inches in Diameter 2015 MAHLUM PERMIT SET Issue Date: 11 SEPTEMBER 2015 PAGE 5 OF 6

6 a. Provide a sheet metal (22 gauge) sleeve to cover the entire perimeter of a 1 inch to 1-1/2 inch (1/2 inch to 3/4 inch on each side) oversized penetration cut. b. If conduit or cable penetrates a double or staggered stud wall, use a separate sleeve at each side of the wall. There shall be no sleeve connection between walls. c. Plaster or caulk sleeve to the wall, ceiling, or floor, to ensure an airtight seal. d. Pack the gap between the penetrating conduit or cable and the sleeve with Acoustical Insulation and seal airtight on both sides of the wall, floor, or ceiling with an outer layer of Resilient Sealant. e. Do not use wall, floor, or ceiling penetrations to support conduit or cable. Support conduit or cable just prior to and just after the penetration so that it is centered in the penetration. 3. Conduit Penetration Isolation at Fire-Rated and Non-Fire Rated Partitions For Conduit Less Than or Equal to 2 Inches in Diameter a. Oversize penetration by 3/8 inch on each side. b. Seal gap airtight with Acoustical Sealant. c. Do not use wall, floor, or ceiling penetrations to support conduit or cable. Support conduit or cable just prior to and just after the penetration so that it is centered in the penetration. 4. Cable Tray Penetration Isolation at Non-Fire Rated and Fire-Rated partitions a. Provide a sheet metal (22 gauge) box to cover the entire perimeter of a 1 inch to 1-1/2 inch (1/2 inch to 3/4 inch on each side) oversized penetration cut. The box shall extend 2 feet from each side of the wall. b. Plaster or caulk the sheet metal box to the wall, ceiling, or floor, to ensure an airtight seal. c. If the cable tray penetrates a double or staggered stud wall, use a separate box at each side of the wall. Ensure there are no sleeve connections between the walls. d. Pack the gap between the penetrating cable tray and the box with Intumescent Firestop Pillows for the full length of the sheet metal box. C. Use the above penetration treatment regardless of the existence of external insulation. Size penetration large enough to pack additional Acoustical Insulation and apply Acoustical Sealant between the external insulation and the sheet metal sleeve. 3.5 MISCELLANEOUS A. Coordinate with other trades and structural engineer to ensure mounting attachment points for seismic restrained springs and seismic snubbers called out in this specification will withstand forces generated from the maximum acceleration rating of the restrained springs and snubbers. B. Any and all electrical equipment within mechanical or electrical rooms not listed in the schedules above, shall be separated from contact with the structure via isolator Type N-4, plus neoprene washers and bushings Type WB-1, if equipment is bolted to structure. Size pads and use metal plates or washers to limit surface pressure on neoprene to 45 psi. END OF SECTION 2015 MAHLUM PERMIT SET Issue Date: 11 SEPTEMBER 2015 PAGE 6 OF 6