DIVISION 13 - SPECIAL CONSTRUCTION SECTION 13080 - ACOUSTICAL PANEL ENCLOSURE 1 GENERAL 1.01 SUMMARY A. ACOUSTIC ENCLOSURE CONSISTING OF WALLS, CEILING, STRUCTURAL FRAMING, CONNECTING MEMBERS, DOORS, WINDOWS, MISCELLANEOUS MATERIALS AND ALL FASTENERS NECESSARY TO CONSTRUCT THE TEST CELLS. THE TEST CELLS ARE TO BE FIELD ASSEMBLED FROM 4" THICK PRE-MANUFACTURED COMPONENTS. ENCLOSURE TO BE DESIGNED TO MEET THE PERFORMANCE CRITERIA SPECIFIED HEREIN AS A COMPLETE ASSEMBLY. B. PROVIDE LABOR, MATERIAL, TOOLS, EQUIPMENT, SCAFFOLDING, TRANSPORTATION, INSPECTION, CERTIFICATES, AND TEMPORARY PROTECTION NECESSARY TO: 1. PROVIDE ACOUSTICAL ENCLOSURES AS SHOWN ON DRAWINGS AND AS SPECIFIED IN THESE SPECIFICATIONS. PROVIDE ACCESSORIES AND APPURTENANCES REQUIRED FOR COMPLETE WORKING INSTALLATION. 2. CONNECTORS AND FLASHING SHALL MAKE HOLES IN WALLS ACOUSTICALLY TIGHT IN ACCORDANCE WITH PANEL MANUFACTURER'S INSTRUCTIONS C. STRUCTURAL STEEL SUPPORT FRAME AS REQUIRED. D. ALL ELECTRICAL BY OTHERS, REFER TO DRAWINGS. E. ALL DUCTWORK BETWEEN HOST BUILDING AND TEST CELLS FOR AIR INTAKE AND AIR EXHAUST BY OTHERS, REFER TO DRAWINGS. 1.02 QUALITY ASSURANCE: A. REGULATORY REQUIREMENTS: 1. ACOUSTICAL PERFORMANCE: MINIMUM NRC (NOISE REDUCTION COEFFICIENT) RATING OF 1.0 MINIMUM STC (SOUND TRANSMISSION CLASS) OF 42 AFTER PANEL FABRICATION. B. REFERENCE STANDARDS: 1. ASTM E90-99 OR ASTM E90-02 AND E413-87 STANDARD TEST METHOD FOR LABORATORY MEASUREMENT OF AIRBORNE SOUND TRANSMISSION LOSS OF BUILDING PARTITIONS. 2. ASTM C423-90A AND ASTM E795-00, SOUND ABSORPTION AND SOUND ABSORPTION COEFFICIENTS BY THE REVERBERATION ROOM METHOD. 1.03 SUBMITTALS: A. PRODUCT DATA: MANUFACTURER'S PRODUCT SPECIFICATIONS. B. SHOP DRAWINGS: COMPLETE DRAWINGS SHOWING COMPONENTS INCLUDING MECHANICAL AND ELECTRICAL REQUIREMENTS. C. CERTIFICATE OF COMPLIANCE: CERTIFY COMPLETED ASSEMBLY MEETS REQUIREMENTS SPECIFIED HEREIN. D. STAMPED (P.E.) CALCULATIONS FOR ALL STRUCTURAL AND PANEL COMPONENTS.
1.04 DELIVERY, STORAGE AND HANDLING A. DELIVER PRODUCTS IN SUFFICIENT QUANTITY AND TIME TO MAINTAIN APPROVED CONSTRUCTION SCHEDULE. B. MATERIALS SHALL BE IN ORIGINAL CONTAINERS WITH SEALS UNBROKEN AND LABELS INTACT UNTIL TIME OF USE. WRAPPED OR BUNDLED MATERIALS SHALL BEAR NAME OF MANUFACTURER AND PRODUCT. DAMAGED OR OTHERWISE UNSUITABLE MATERIAL, WHEN SO ASCERTAINED, SHALL BE REMOVED FROM PROJECT SITE. C. STORE PRODUCTS IN SECURE, DRY LOCATION, OUT OF WAY OF CONSTRUCTION OPERATIONS. STORE PRODUCTS OFF GROUND AND PROTECT FROM ELEMENTS. WETTING OF ELEMENTS NOT PERMITTED. D. PREVENT DAMAGE TO MATERIALS, TO OTHER STORED PRODUCTS, TO EXISTING CONSTRUCTION, AND PROJECT WORK. 1.05 WARRANTY A. FINISH WARRANTY: FURNISH PANEL MANUFACTURER'S WRITTEN WARRANTY COVERING FAILURE OF THE FACTORY-APPLIED FINISH ON METAL PANELS WITHIN THE WARRANTY PERIOD. THIS WARRANTY SHALL BE IN ADDITION TO AND NOT A LIMITATION OF OTHER RIGHTS THE OWNER MAY HAVE AGAINST THE CONTRACTOR UNDER THE CONTRACT DOCUMENTS. B. WARRANTY PERIOD: 2 YEARS 1.06 EXPERIENCE A. TEST CELL SUPPLIER MUST PROVIDE A LIST OF TEN (10) SIMILAR SUCCESSFUL INSTALLATIONS OF MODULAR TEST CELLS. 2 PRODUCTS 2.01 ACOUSTICAL METAL PANELS A. ALL PANELS AND THEIR COMPONENTS SHALL BE PRE-FABRICATED, SECTIONAL, ALL-METAL CLAD, MODULAR AND DESIGNED FOR EASY AND ACCURATE FIELD ASSEMBLY. THE PANELS AND COMPONENTS SHALL NOT BE SUSCEPTIBLE TO DAMAGE DUE TO EXTENDED EXPOSURE TO VIBRATION, AIR TEMPERATURE OR HUMIDITY WITH THE PASSAGE OF TIME. 2.02 PANEL CONSTRUCTION A. EXCEPT AS SHOWN ON DRAWINGS OR AT LOCATIONS DESCRIBED BELOW, USE 4 THICK ACOUSTICAL PANELS. EXTERIOR SURFACES ARE SOLID SHEET 16-GA. GALVANNEAL STEEL. INTERIOR SURFACES ARE 22 GA. PERFORATED GALVANNEAL STEEL. B. SOUND-RETARDING AND ABSORBING FILL MATERIAL SHALL BE NONCOMBUSTIBLE, INERT, MILDEW-RESISTANT AND VERMIN PROOF. C. THE PANEL SHELLS, FRAMING MEMBERS AND INTERNAL REINFORCEMENTS SHALL BE WELDED AND/OR RIVETED TOGETHER TO FORM A METAL-SHEATHED PANEL OF SUFFICIENT STRENGTH FOR MAXIMUM OPERATING LOADS. D. PRIOR TO ATTACHING FACE SHEET, PANEL SHALL BE DAMPENED AND FILLED WITH SOUND- RETARDING AND ABSORBING ELEMENTS. FILL SHALL BE SLIGHTLY LARGER AND THICKER THAN INSIDE DIMENSIONS OF PANEL. NO VOIDS WILL BE TOLERATED E. THE OUTER GALVANIZED STEEL SHELL THICKNESS SHALL BE 16-GA. MINIMUM AND THE INNER GALVANIZED STEEL SHELL SHALL BE 22-GA. MINIMUM THICK. F. WEEP HOLES TO PERMIT WATER RUNOFF SHALL BE PROVIDED ON ALL HORIZONTAL SURFACES.
G. SPOT WELDS SHALL BE NO MORE THAN 4 IN. APART. 2.03 DOOR PANELS A. DOOR LEAF SHALL BE 4 IN. THICK FABRICATED FROM 16 GAUGE STEEL AND FILLED WITH SOUND ABSORBING AND DAMPING ELEMENTS WITH A CLEAR OPENING OF (REFER TO DRAWINGS). DOORS SHALL HAVE A RATING OF STC 42 MINIMUM. B. FRAME SHALL BE FABRICATED FROM MINIMUM 11 GAUGE STEEL. C. ASSEMBLY AND ADJUSTMENT OF DOOR ASSEMBLY INCLUDING DOOR LEAF, FRAME, ACOUSTIC SEALS AND HINGES SHALL TAKE PLACE AT THE FACTORY AND THE ENTIRE UNIT SHALL SHIP TO THE JOBSITE READY FOR INSTALLATION AND OPERATION. ALL DOORS SHALL BE TESTED FOR PROPER OPERATION IN THE FACTORY PRIOR TO SHIPMENT. D. ACOUSTIC SEALS: SIDES AND HEAD OF DOOR AND FRAME SHALL RECEIVE TWO (2) SETS OF SELF-ALIGNING COMPRESSION SEALS. DOOR TO BE HELD IN PLACE BY FORCE OF PERIMETER SEALS. ACOUSTIC LABYRINTH SHALL BE CREATED WHEN DOOR IS IN CLOSED POSITION. BOTTOM OF DOOR LEAF SHALL CONTAIN CONTINUOUS GRAVITY ACTIVATED SEAL, WHICH SHALL COMPRESS AGAINST FLOOR AS DOOR IS CLOSED. RAISED SILLS AND THRESHOLD DROP SEALS WILL NOT BE PERMITTED. E. HARDWARE: 1. HINGES - TWO (2) CAM-LIFT HINGES FINISHED IN US 26-D SATIN CHROME SHALL BE SUPPLIED WITH EACH DOOR LEAF. 2. LATCHES SHALL NOT E REQUIRED TO HOLD THE DOOR CLOSED OR TO ACHIEVE ACOUSTIC SEAL. 3. SEE THE DRAWINGS IN REGARDS TO THE HARDWARE SCHEDULE FOR EGRESS DOORS. 2.04 WINDOW PANELS A. WINDOWS SHALL BE FURNISHED IN PANELS OF THE TYPE AND CONSTRUCTION SPECIFIED AS SHOWN ON THE DRAWINGS. B. WINDOWS SHALL CONSIST OF TWO (2) LAYERS OF 3/16 IN. SAFETY GLASS SEPARATED BY AN AIR SPACE AND SEALED IN ACOUSTICALLY TIGHT RUBBER SEALS OR ONE LAYER OF 1-3/16 THICK BULLET RESISTANT GLAZING. REFER TO DRAWINGS FOR WINDOW TYPE AND LOCATION. C. AIR SPACE ON DOUBLE GLAZED WINDOWS SHALL CONTAIN A DESICCANT MATERIAL TO PREVENT FOGGING. 2.05 PANEL COMPONENTS A. ALL ACCESSORY TRIM ITEMS SHALL BE OF GALVANIZED STEEL AND SHALL BE FURNISHED IN FACTORY-STANDARD LENGTHS TO BE FIELD CUT TO SPECIFIED DIMENSIONS. LOCATIONS AND QUANTITIES OF SHEET METAL SCREWS AND TRIM REQUIREMENTS SHALL BE IN ACCORDANCE WITH THE MANUFACTURER'S INSTALLATION DETAILS. B. ALL PANEL CONNECTIONS, TRIM ITEMS, ACCESSORIES, BASE CHANNEL/PANEL INTERFACES, BASE CHANNEL/FLOOR INTERFACES AND OTHER SECTIONS SHALL BE SEALED WITH AN ACOUSTICAL SEALANT THAT SHALL NOT HARDEN AND PREVENT DISASSEMBLY IN THE FUTURE. C. PANEL CONNECTION DESIGN AND FIT SHALL PREVENT NOISE LEAKAGE WHILE ACOUSTICALLY AND STRUCTURALLY JOINING PANELS TOGETHER. JOINERS SHALL BE ROLL FORMED SECTIONS INDEPENDENT OF BASIC PANEL SO THERE IS NO POSSIBILITY OF DIRECT PASSAGE OF NOISE. D. WEEP HOLES TO PERMIT WATER RUNOFF SHALL BE PROVIDED ON ALL HORIZONTAL SURFACES THAT MAY TRAP WATER.
2.06 ACCESSORY ITEMS A. DOORS, WINDOWS, ACCESSORY COMPONENTS, ETC., SHALL BE PROVIDED IN ACCORDANCE WITH THE DRAWINGS. 2.07 STRUCTURAL PERFORMANCE A. UNDER THE INDICATED LOADING CONDITIONS, THE ENTIRE ENCLOSURE SYSTEM SHALL BE SELF-SUPPORTING. THE INSTALLER SHALL FURNISH AND ASSEMBLE ALL STRUCTURAL MEMBERS IN STRICT ACCORDANCE WITH THE DRAWINGS AND MANUFACTURER'S INSTALLATION DETAILS. B. THE TEST CELL STRUCTURE SHALL SUPPORT ALL WALL MOUNTED CRANE AND MECHANICAL/ELECTRICAL EQUIPMENT LOADS AS INDICATED ON THE DRAWINGS. C. UNDER THE ABOVE LOADING CONDITIONS, THE ASSEMBLED ACOUSTICAL STRUCTURE SHALL NOT EXHIBIT ANY PANEL JOINT DEFLECTION IN EXCESS OF L/240, WHERE L IS THE UNSUPPORTED SPAN LENGTH OF ANY PANEL SECTION IN THE ERECTED STRUCTURE. 2.08 PRIME AND FINISH PAINT A. STRUCTURAL STEEL MEMBERS AND DOORS A.A. STRUCTURAL STEEL MEMBERS AND DOORS TO RECEIVED PAINT SHALL BE DE-GREASED AND CLEANED IN ACCORDANCE WITH SSPC - 1.1 WITH WELDS GROUND SMOOTH AND FILLED AS NEEDED. EXPOSED SURFACES SHALL THEN BE PRIMED WITH ON COATED MODIFIED ALKYD BAKED ENAMEL PAINT A.B. FINISH PAINT SHALL BE AS INDICATED IN THE PAINT SCHEDULE ON SHEET A-106 A.C. PROVIDED SUFFICIENT PAINT TO TOUCH UP STRUCTURAL MEMBERS AND DOORS AFTER INSTALLATION OF TEST CELLS. B. PANELS AND TRIM B.A. FINISH ACOUSTICAL PANELS IN SHOP PRIOR TO PANEL ASSEMBLY AND ACOUSTIC INSULATION FILL. B.B. PREPARE PANELS AND TRIM BY THOROUGHLY REMOVING GREASE, DIRT, OIL, FLUX, AND OTHER FOREIGN MATTER B.C. TREAT PREPARED ACOUSTICAL PANELS AND COMPONENTS WITH ZINCE-PHOSPATE PRETREATMENT, RINSE, AND SEAL SURFACE. B.D. APPLY THERMOSETTING POLYESTER OR ACRYLIC URETHANE POWDER COATING WITH CURED- FILM THICKNESS NOT LESS THAN 3.0 MILS. B.E. COLOR SHALL BE AS INDICATED IN THE PAINT SCHEDULE ON SHEET A-106. B.F. SURFACE PROTECTION: APPLY A TEMPORARY 3.0 MIL THICKNESS PVC TEMPORARY COVERING TO POWDER COATED SURFACE AFTER CURE FOR SHIPMENT AND INSTALLATION PROTECTION. C. FINISH PAINT SHALL BE AS INDICATED IN THE PAINT SCHEDULE ON SHEET A-106. D. PROVIDE SUFFICIENT PAINT TO TOUCH-UP PANELS AFTER INSTALLATION OF TEST CELLS.
2.09 INTERCHANGEABILITY AND REUSE A. ACOUSTIC STRUCTURAL COMPONENTS HAVING SAME PART NUMBERS SHALL BE COMPLETELY INTERCHANGEABLE. B. ACOUSTIC STRUCTURE SHALL BE SUCH THAT NO COMPONENTS WILL BE DAMAGED UPON DISASSEMBLY. DESIGN SHALL ALLOW STRUCTURE TO BE ASSEMBLED, DISASSEMBLED AND REASSEMBLED MINIMUM OF 3 TIMES WITHOUT DETRACTION FROM ACOUSTIC PERFORMANCE. 2.10 PANEL COMPONENT CHARACTERISTICS A. THE MANUFACTURER SHALL PROVIDE CERTIFIED TESTING DATA INCLUDING SOUND ABSORPTION AND TRANSMISSION LOSS CHARACTERISTICS OF THE PANELASSEMBLY OF NOT LESS THAN THE FOLLOWING: SOUND TRANSMISSION LOSS, DB OCTAVE BAND CENTER FREQUENCIES, HZ 63 125 250 500 1K 2K 4K 8K STC WALL/CEILING PANELS 4 THICK 21 21 30 41 52 59 64 67 42 SOUND ABSORPTION COEFFICIENTS OCTAVE BAND CENTER FREQUENCIES, HZ 63 125 250 500 1K 2K 4K 8K NRC 4 THICK 0.18.75 1.02 1.07 0.98 0.89 0.80 0.86 1.0 B. SUBMIT CERTIFIED FIRE TESTING LABORATORY TEST REPORTS INCLUDING FLAME SPREAD INDEX (FSI) AND SMOKE DEVELOPED INDEX (SDI) VALUES FOR SPECIFIED PANEL TYPE AND CONSTRUCTION OF NOT LESS THAN FOLLOWING: 3 EXECUTION PANEL CONSTRUCTION: FSI 0.00 SDI 0.16 3.01 PANEL SUPPORTS AND ANCHORAGE A. INSTALL COLUMNS, BEAMS AND OTHER SECONDARY STRUCTURAL PANEL SUPPORT MEMBERS AND ANCHORAGE IN ACCORDANCE WITH AISC MANUAL OF STEEL CONSTRUCTION "CODE OF STANDARD PRACTICE". 3.02 PANEL INSTALLATION A. INSTALL PANELS ACCORDING TO MANUFACTURER'S INSTRUCTIONS AND RECOMMENDATIONS, AS APPLICABLE TO PROJECT CONDITIONS AND SUPPORTING SUBSTRATES. ANCHOR PANELS AND OTHER COMPONENTS OF THE WORK SECURELY IN PLACE, WITH PROVISIONS FOR THERMAL AND STRUCTURAL MOVEMENT. 1. INSTALL PANELS WITH EXPOSED FASTENERS PRE-FINISHED TO MATCH PANEL FINISHES. B. BASE CHANNEL SHALL BE INSTALLED ON A LEVEL AND STRUCTURALLY SOUND SURFACE. C. ACCESSORIES: INSTALL COMPONENTS REQUIRED FOR A COMPLETE ACOUSTICAL PANEL SYSTEM, INCLUDING TRIM, COPING, SUPPORTS AND ATTACHMENTS, CONNECTIONS BETWEEN PANELS, SEAM COVERS, SEALANTS, FILLERS, CLOSURES STRIPS AND SIMILAR ITEMS.
3.03 CLEANING AND ADJUSTMENT A. DAMAGED UNITS: REPLACE PANELS AND OTHER COMPONENTS OF THE WORK THAT HAVE BEEN DAMAGED OR HAVE DETERIORATED BEYOND SUCCESSFUL REPAIR BY MEANS OF FINISH TOUCH UP OR SIMILAR MINOR REPAIR PROCEDURES. B. CLEANING: REMOVE TEMPORARY PROTECTIVE COVERINGS AND STRIPPABLE FILMS (IF ANY) AS SOON AS EACH PANEL IS INSTALLED. UPON COMPLETION OF PANEL INSTALLATION, CLEAN FINISHED SURFACES AS RECOMMENDED BY PANEL MANUFACTURER, AND MAINTAIN IN A CLEAN CONDITION DURING CONSTRUCTION.