This Specification should be used only by qualified professionals who are competent in evaluating the significance and limitations of the following specifications and who will accept responsibility for the application of its requirements to the products being considered.
1. GENERAL
1.01 SUMMARY
i. Section Includes: Custom fabricated acoustical sound-absorptive mobile noise barriers.
1.02 REFERENCES
ii. ASTM International:
- Noise Absorption: The panels shall have a noise reduction coefficient of 1.00 or greater according to ASTM Test Method C423-90a.
- Sound Transmission: The panels shall have a sound transmission class of 30 or greater according to ASTM Test Method E90-90 and E413-87.
- Steel for wide flange shapes and built-up column members shall conform to ASTM A572 Grade 50 or ASTM A992. All other structural steel base plates and braces shall conform to ASTM A36.
- All anchor bolts shall conform to ASTM A36 galvanized unless noted. The anchor bolt length will depend on the type of anchor used.
- All fabricated steel members are to be hot dip galvanized after fabrication per ASTM A123 unless otherwise noted.
B. AISC:
- All structural steel design, fabrication and erection shall conform to the latest edition of the AISC manual of steel construction, “Allowable Stress Design”.
C. AWS:
- All welding shall conform to American Welding Society D1.1 and Electrodes shall be E70XX.
1.03 SYSTEM DESCRIPTION
iii. Performance Requirements:
- Noise Absorption: The panels shall have a noise reduction coefficient of 1.00 or greater according to ASTM Test Method C423-90a.
- Sound Transmission: The panels shall have a sound transmission class of 33 or greater according to ASTM Test Method E90-90 and E413-87.
1.04 SUBMITTALS
A. Product Data -- Submit product data sheet, for specified products.
B. Shop Drawings -- Submit shop drawings showing layout and panel components
C. Samples -- Submit verification sample showing of finish, color and texture.
D. Colors -- If required, manufacturer will supply color chips for review and color selection.
E. Test Reports -- Certified test reports showing compliance with specified performance requirements.
1.05 DELIVERY, STORAGE & HANDLING
iv. General: Comply with Division 1 Product Requirements Section. Generally, components shall be shipped, unloaded, handled, and stored in such a manner as to minimize the dangers of chipping, scratching, and excessive bending stresses.
v. Delivery: Deliver materials in manufacturer’s original, unopened, undamaged containers with identification labels intact.
vi. Storage and Protection: Store materials protected from exposure to harmful environmental conditions and at temperature and humidity conditions recommended by the manufacturer.
2. PRODUCTS
2.01 ACOUSTICAL PANELS
vii. Acoustical Panels: In order to establish the level of design and quality required, the system has been designed around the following manufacturer:
- Sound Fighter Systems, L.L.C., P.O. Box 7216, Shreveport, LA 71137
318-861- 6640
2.02 MANUFACTURED UNITS
LSE Absorptive Sound Panels: The panels shall be produced by injection molding to form an encasement or box type unit. The molding material is a high-density polyethylene with antioxidant additives, UV stabilizers, color dyed from certified raw material.
- Longitudinally arranged channel sections on the bottom of the panel to form a tongue and groove interlock joint when stacked. The interior base plate is sloped and has weep holes for drainage. Internal ribs are provided for ventilation and to hold the acoustic filler materials in place.
- Each panel is furnished with a fluted sheet pile configuration, solid faced on one side and with a 23% open perforated area on the opposite side. Both sides may be perforated for special applications.
- End connections shall be a tongue and groove design with overlapping contacts to assemble with vertical columns of standard W4 x 13 beams. No screws or bolts are needed to install the panels to structural steel columns.
- When panels are completely packed with acoustic materials, they shall not weight more than 5 pounds per square foot. The LSE 1000 total panel weight is 11.75 pounds. The LSE 2000 total panel weight is 23.25 pounds. The square area for the LSE 1000 and 2000 panels is 2.50 and 5.00 Sq. Ft. respectively.
- Internal absorptive fill material shall be 6.0 pounds per cubic foot density mineral acoustic fiber packed under not less than 5% compression to eliminate voids. It shall be moisture and corrosive resistant, vermin proof, non-combustible, smokeless, and odorless. The mineral fiber fits into the panel cavity against the perforated face.
- The internal acoustic barrier or septum shall be a 0.5-inch thick asphalt core impregnated sheathing board or a cement type board of the same thickness and attaches against the back face of the panel.
Physical Dimensions:
Length
Width
Height
Stack Height
Area
Weight (sq/ft)
Panel Weight
LSE 1000
38.75”
6.00”
10.50”
9.87”
2.5 sf
5.0 lbs.
11.75 lbs.
LSE 2000
73.00”
6.00”
10.50”
9.87”
5.0 sf
5.0 lbs.
23.25 lbs.
3. FABRICATION
B. All structural steel design, fabrication and erection shall conform to the latest edition of the AISC manual of steel construction, “Allowable Stress Design”.
C. Steel for wide flange shapes and built-up column members shall conform to ASTM A572 Grade 50 or ASTM A992. All other structural steel base plates and braces shall conform to ASTM A36.
D. All welding shall conform to American Welding Society D1.1 and Electrodes shall be E70XX.
E. All fabricated steel members are to be hot dip galvanized after fabrication per ASTM A123 unless otherwise noted.
F. Steel columns shall be spaced to accommodate the panel length, and not to exceed 1” greater than the panel length. The LSE 1000 shall have a W4 x 13 support column center distance of 39 ½”, and the LSE 2000 shall have a W4 x 13 support column center distance of 74”.
4. INSTALLATION
4.01
The LSE Noise Barrier System shall be installed per the manufacturer’s recommendation.
4.02 Manufacturer's Installation Instructions:
B) Comply with manufacturer’s product data, including product technical bulletins, product catalog installation instructions and product carton instructions for installation. Extreme care shall be exercised to protect the wall components from damage during shipment or erection.
C) The installer shall, before ordering any wall component, inspect the job site and verify in writing to the manufacturer that site conditions permit the original plan of installation and erection of wall components.
- 1. Do not install LSE sound panels until unsatisfactory conditions are corrected.
- Installer shall identify any underground utility or overhead obstruction that could affect job site safety. The installer is responsible to correct any site conditions that would compromise site safety and cause an accident.
D) Installer is responsible for accepting and inspecting delivered components prior to installation.
E) The installer shall notify the manufacturer of any wall components received in damaged condition. Any damaged wall component installed without proper manufacturer notification and site inspection is the responsibility of the installer.
5. MAINTENANCE
5.01
No routine maintenance (painting / staining) is required with the LSE System. Most graffiti (paint) can be washed off with minimal effort via the use of a mild, citrus-based cleaning solvent.