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HomeMy WebLinkAbout03 54 14 Gypsum Cement Acoustic UnderlaymentTHE KENT 03 54 14 - THE KENT Issue Date 05.09.18 GYPSUM CEMENT ACOUSTIC UNDERLAYMENT THE KENT SECTION 03 54 14 - GYPSUM CEMENT ACOUSTIC UNDERLAYMENT PART 1 GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Section includes: 1. Sound isolation floor system, incorporating gypsum cement underlayment and a sound control mat. B. Floor Finish - Refer to Specification Division 09 Finishes for individual area floor finishes. 1.3 REFERENCES A. Standards listed by reference, including revisions by issuing authority, form a part of this specification section to the extent indicated. Standards listed are identified by issuing authority. Authority abbreviation, designation number, title or other designation established by issuing authority. Standards subsequently referenced herein are referred to by issuing authority abbreviation and standard designation. B. American Society for Testing and Materials (ASTM): 1. ASTM E 492 Standard Test Method for Laboratory Measurement of Impact Sound Transmission through Floor-Ceiling Assemblies Using the Tapping Machine. 2. ASTM C 627 Standard Test Method for Evaluating Ceramic Floor Tile Installation Systems Using the Robinson-Type Floor Tester. 3. ASTM E 989 Standard Classification for Determination of Impact Insulation Class (IIC). 4. ASTM E 1007 Standard Test Method for Measurement of Tapping Machine Impact Sound Transmission through Floor-Ceiling Assemblies and Associated Support Structures. 5. ASTM E 2179 Standard Test Method for Laboratory Measurement of the Effectiveness of Floor Coverings in Reducing Impact Sound Transmission through Concrete Floors. 6. ASTM E 90 Standard Test Method for Laboratory Measurement of Airborne Sound Transmission in Buildings. 7. ASTM E 336 Standard Test Method for Measurement of Airborne Sound Insulation in Buildings. 1.4 SUBMITTALS A. Refer to Specification Section 01 33 00 for general submittal procedures. THE KENT 03 54 14 - THE KENT Issue Date 05.09.18 GYPSUM CEMENT ACOUSTIC UNDERLAYMENT THE KENT B. Product Data: For each type of product indicated. C. Shop Drawings: 1. Include plans, sections and details. 2. Indicate locations of penetrations, perimeter terminations, curbs, control and expansion joints and drains. D. Design Mixtures: For manufacturer’s gypsum cement. E. Field quality control reports. F. Acoustical Data: Submit sound tests according to IBC code criteria ASTM E 492 (IIC) and ASTM E 90 (STC). 1.5 SYSTEM REQUIREMENTS A. Performance Requirements: 1. Gypsum Cement Acoustic Underlayment: a. Compressive Strength: 2000 – 3200 psi. b. Sound Control: 1) Minimum Sound Transmission Class: 50 STC (45 STC if field tested). 2) Minimum Impact Insulation Class: 50 IIC (45 IIC if field tested). 1.6 QUALITY ASSURANCE A. Installer Qualifications – Acoustical Barriers: Installer experienced in performing work, who specializes in installation of work similar to that required for this project and is approved by the manufacturer to perform the work. 1. Refer to Specification Section 01 40 00 “Quality Requirements.” B. Installer Qualifications- Gypsum Cement: Installation of gypsum cement acoustic underlayment shall be by an applicator authorized by the manufacturer using approved mixing and pumping equipment. 1. Refer to Specification Section 01 40 00 “Quality Requirements.” C. Mockups: Provide at Architect’s request. D. Pre-Installation Meetings: Conduct pre-installation meeting to verify project requirements, substrate conditions, manufacturer’s instructions, and manufacturer’s warranty requirements. 1. Refer to Specification Section 01 31 00 “Project Management and Coordination” for additional requirements. 1.7 DELIVERY, STORAGE AND HANDLING A. General Requirements: Materials shall be delivered in their original, unopened packages, and protected from exposure to the elements. Damaged or deteriorated materials shall be removed from the premises. 1.8 PROJECT CONDITIONS THE KENT 03 54 14 - THE KENT Issue Date 05.09.18 GYPSUM CEMENT ACOUSTIC UNDERLAYMENT THE KENT A. Acoustical Barrier Subfloor: 1. Areas to receive acoustical barrier shall be weather tight and maintained at a minimum constant room temperature of 50 deg. F for 48 hours before, during and after installation. 2. All sub-floors/substrates shall be inspected prior to installation. 3. Sub-floor surface shall be flat to the equivalent of 3/16 inch in 10 feet. 4. Fill all saw cuts, cracks, other non-moving joints and low spots with an approved leveling/patching compound. 5. It is the installer’s responsibility to test for moisture. B. Gypsum Cement: Before, during and after installation of gypsum cement acoustic underlayment, building interior shall be enclosed and maintained at a temperature above 50 degrees F. C. Refer to Drawings for floor/ceiling system design, IIC and STC ratings. 1.9 WARRANTY A. Standard manufacturer’s warranties for all products used. 1.10 MAINTENANCE A. Acoustical Barrier 1. Extra Materials: Deliver to Owner extra materials from same production run as products installed. a. Furnish and deliver requested quantities. PART 2 PRODUCTS 2.1 MANUFACTURERS A. Subject to compliance with requirements, provide products by the following manufacturers: 1. Noise control insulation mat – acoustical barrier: a. Maxxon: Enkansonic HP. 2. Gypsum cement underlayment: a. Maxxon Corp.: Gyp-Crete 2000/3.2K. b. Keene Building Products: GSL K2.6. c. Laticrete: Supercap. d. Mapei: Planitex SL 35. 3. Floor primer: a. As recommended by gypsum cement acoustic underlayment manufacturer. 4. Sealer: a. As recommended by gypsum acoustic cement underlayment manufacturer. 2.2 MATERIALS AND PRODUCTS A. Noise Control Insulation Mat – Acoustical Barrier: THE KENT 03 54 14 - THE KENT Issue Date 05.09.18 GYPSUM CEMENT ACOUSTIC UNDERLAYMENT THE KENT 1. Maxxon Enkasonic HP. B. Gypsum Cement: 1. Gypsum Cement: Floor underlayment: See 2.1 A.2. above. 2. Sand Aggregate: Sand shall be 1/8 inch or less, washed masonry or plaster sand, meeting requirements of Maxxon Corporation Sand Specification 101. 3. Mix Water: Potable, free from impurities. 4. Sub-floor Primer: See 2.1 A.3 above. 5. Sealer: See 2.1 A.4. C. Perimeter Isolation Tape: 1. As recommended by noise control insulation mat manufacturer. D. Gypsum Board Ceiling Isolation Clip: Keene Building Products: RC Assurance. 2.2 MIX DESIGNS A. General Requirements: Gypsum cement acoustic underlayment mix proportions and methods shall be in strict accordance with product manufacturer recommendations. PART 3 EXECUTION 3.1 PREPARATION FOR NOISE CONTROL MAT A. Refer to Part 1 1.7 and manufacturer’s written recommendations. B. Condition and Cleaning of Sub-floor: Sub-floor shall be structurally sound. General Contractor shall clean sub-floor to remove mud, oil, grease, and other contaminating factors before gypsum cement acoustic underlayment is installed. C. Expansion joints: Allow joints to continue through the gypsum cement acoustic underlayment at the same width. 3.2 PREPARATION FOR GYPSUM CEMENT A. Condition and Cleaning of Sub-floor: Sub-floor shall be structurally sound. General Contractor shall clean sub-floor to remove mud, oil, grease, and other contaminating factors before gypsum cement acoustic underlayment is installed. B. Leak Prevention: Fill cracks and voids with a quick setting patching or caulking material where leakage could occur. C. Expansion joints: Allow joints to continue through the gypsum cement acoustic underlayment at the same width. D. Noise control mat and perimeter isolation tape applied to perimeter walls and floor penetrations. THE KENT 03 54 14 - THE KENT Issue Date 05.09.18 GYPSUM CEMENT ACOUSTIC UNDERLAYMENT THE KENT 3.3 PREPARATION FOR RESILIENT UNDERLAYMENT A. Surface Preparation: Surface shall be prepared in accordance with ANSI standards. 3.4 APPLICATION OF NOISE CONTROL INSULATION MAT A. Comply with manufacturer’s written recommendations for procedures and techniques for installation. B. Installation should not begin until all other trades are finished in the area. C. Lay sound control mat on the sub-floor. Follow manufacturer’s written instructions. D. Attach acoustical perimeter isolation tape to the perimeter wall of the entire sub-floor, as well as around any penetrations through the floor. Follow manufacturer’s written installation instructions. E. Trim the ends of each section as necessary in order to fit the finished surface gypsum cement underlayment to be covered. 3.5 APPLICATION OF CEMENT FLOORING A. Scheduling: Application of gypsum cement underlayment shall not begin until the building is enclosed, including roof, windows, doors, and other fenestration. Install after drywall, noise control insulation mat and perimeter isolation tape installation. B. Application Over Underlayment: Place gypsum cement acoustic underlayment at 1- inch minimum thickness over noise control insulation mat underlayment. Spread and screed gypsum cement acoustic underlayment to a smooth surface. Except at authorized joints, place gypsum cement acoustic underlayment as continuously as possible until application is complete so that no gypsum cement acoustic underlayment slurry is placed against gypsum cement acoustic underlayment product that has obtained its initial set. C. Drying: Provide continuous ventilation and adequate heat to rapidly remove moisture from the area until the gypsum cement acoustic underlayment is dry. Provide mechanical ventilation if necessary. Allow not less than fourteen (14) days drying time. To test for dryness, tape a 24- inch by 24-inch section of plastic or high- density rubber mat to the surface of the gypsum cement flooring for 48-72 hours. If no condensation occurs, the gypsum cement flooring shall be considered dry. D. Primer Sealer Application: Seal all areas that receive glue down floor goods with primer sealer according to manufacturer’s specifications. 3.6 FIELD QUALITY CONTROL A. Gypsum Cement Underlayment: 1. Slump Test: Gypsum cement underlayment mix shall be tested for slump THE KENT 03 54 14 - THE KENT Issue Date 05.09.18 GYPSUM CEMENT ACOUSTIC UNDERLAYMENT THE KENT as it is being pumped using a 2- inch by 4-inch cylinder resulting in a patty size of 8 inches plus or minus 1-inch diameter. 2. Field Samples: At least one set of 3 molded cube samples shall be taken from each day's pour during the gypsum cement underlayment application. Cubes accordance with modified ASTM C 472. Test results shall be available to architect and/or contractor upon request from applicator shall be tested as recommended by the manufacturer. 3. Flatness Tolerance: After applying float finish, grind smooth any surface defects in gypsum cement underlayment that would telegraph through applied coatings or floor coverings. a. Finish and measure surface so gap at any point between gypsum cement underlayment surface and an unleveled freestanding 10-foot- long straightedge, resting on two high spots and placed anywhere on the surface, does not exceed 1/8 inch for all other gypsum cement underlayment work. 3.7 PROTECTION A. Protection from Heavy Loads: During construction, place temporary wood planking over gypsum cement underlayment wherever it will be subject to heavy wheeled or concentrated loads. 3.8 REPAIRS A. Remove, repair and replace all areas of gypsum cement underlayment damaged during construction to match surrounding. Repair in accordance with manufacturer’s recommendations. END OF SECTION 03 54 14