Division 9 Ebook Page 61 Eurospan® Wall System Specification

Eurospan Acoustical Wall System PART 2 - PRODUCTS 2.1 MANUFACTURER A. Acoustic Stretched Fabric Wall System: Eurospan Acoustical Wall System as manufactured by Eurospan Stretch Systems, www.eurospanstretchsystems.com with the following characteristics: 1. Fabric: [Selected from manufacturer's standard acoustical panel fabric.] [Selected from commercial grade panel/upholstery fabrics complying with the following.] a. Fabric Type: Fiber content and locking weave not affected by heat or humidity, , spot cleanable and dry cleanable. b. Fabric Size: No seams up to 16 feet; seams allowed over 16 feet. c. Fire Performance: NFPA Class A or UBC Class I, ASTM E84 flame spread index 25 or less and smoke developed 450 or less. d. Light Reflectance: Minimum light reflectance of 0.85 for white color. e. Penetrations: Self supporting at penetrations, cut in fabric without additional reinforcement rings or support. 2. Acoustical Core: [Standard 1 inch thick 6 to 7 pound density glass fiber core.] [Non-standard [1/2] [3/4] [1] [1- 1/2] [2] [3] [4] inch [medium] [high] density glass fiber core.] a. Acoustic Performance: ASTM C 423, Type A mounting with NRC of 0.80 at 1 inch thickness. 3. Mounting Devices: Nominal 1/2 inch or 1 inch fire-retardant rigid polymer high-strength extrusions or aluminum extrusions produced in perimeter and mid-seam profiles. Staples, 18 gauge with mechanical ability to attach extrusions, suitable for mounting substrate. a. Fire Performance, Assembly: NFPA Class A or UBC Class I, ASTM E84 testing. b. Perimeter Track: [Square] [Bevel] [Radius], with exposed edges selective covered with matching fabric or painted to match the fabric. c. Mid Joint Track: [Square] [Bevel] [Radius] [Reveal] [Flexible] track as required to achieve design indicated on the Drawings. Capable of installing panels continuously without joints. d. Furring: If core material is thicker than track profile, provide fire retardant treated wood grounds or furrings prior to mounting the track. If edges of grounds are exposed, finish with fabric or painted as selected. PART 3 - EXECUTION 3.1 EXAMINATION A. Verification of Conditions: Examine installation location and conditions under which work is to be performed. Verify wet work is complete and dry. Verify suitable blocking at cable mounting points is in place. Notify Contractor in writing of any unsatisfactory conditions. Do not proceed until satisfactory conditions are achieved. 3.2 INSTALLATION A. Install products in accordance with manufacturer's written instructions and in proper relationship with adjacent construction including the following: 1. Inspect fabric prior to installation. Do not install damaged, imperfect or soiled fabric. 2. Apply mounting system tracks to surfaces to receive system. Secure with 1 inch staples spaced on 2 inch centers. 3. Install mounting system tracks level and straight, flush and in proper alignment. 4. Install acoustical core material continuous and flush to the edge of the track in largest sizes practical and secure in place with appropriate adhesives or staples. For fabric very light in color or light in weight, provide a white scrim or lining to prevent read through. Scrim or lining shall not inhibit the acoustical performance of the system, and meet fire safety code requirements. 5. Stretch shop cut fabric and secure into the locking jaws to produce a smooth surface, free of wrinkles or puckers. Adjust fabric to meet the required dimensional layout.

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