ECKOUSTIC FUNCTIONAL PANELS (continued)
ADVANCED ACOUSTICAL CONSTRUCTION - This special EFP design offers outstanding acoustical performance. "V" ridging improves
sound absorption by holding the polyethylene encased acoustical fill away from the perforated metal face. In addition, the ridging increases
the stiffness of the panel and aids in protecting the face from damage.
EASY, PRACTICAL INSTALLATION - Since the functional arrangement of the EFPs requires that less than 25-30% of the ceiling area be
covered, the panels can be installed without relocating existing sprinklers, lights, or ventilation outlets.
ECONOMICAL - EFPs offer superb sound absorption...and more sabins of sound absorption per sq. ft. means fewer panels are required to
achieve the desired results. And, less panels, in turn, mean greater cost savings.
LOW MAINTENANCE - Panels can be cleaned in place without removing the acoustic fill. Dust, dirt, etc. can be removed by wiping the EFPs
down or washing with soap and water. Panels can be repainted. They should be taken down and the acoustical fill should be removed prior to
spray painting. Aluminum panels with polyethylene bagged acoustical fill can be hosed down with water.
ATTRACTIVE - The pleasing architectural design harmonizes with the interiors of auditoriums, classrooms, swimming pools, factory areas,
and most other places where people gather to work or relax. Finishes can be selected to blend or contrast with interior.
Construction
EFPs are fabricated with facings of 22 ga perforated zinc coated and stiffeners of 20 ga zinc coated paintable steel (aluminum also
available). Facings are perforated with 3/32" holes on 3/16" staggered centers, ridged on 6" centers and flanged at sides and top of
stiffness. Insulation is 2" thick, fine fibered, fibrous glass. Acoustical insulation may be enclosed in 1.5-2 mil plastic when panels are exposed
to high humidity, oil, or grease vapors and in dust-free clean rooms.
Standard finish is white polyurethane enamel paint. Other colors are available.
Four bracket hangers are provided with each panel for either wall or ceiling mounting. Brackets typically are bolted to panels before shipping.
Standard panel width, 30". Standard lengths: 4', 5', 6', 8', or 10'. Special lengths can be provided.
Volume - Thousands of Cubic Feet
Ranges of acceptable reverberation times at 500 Hz. The lower portion of the band is most suitable for rooms intended primarily for speech,
while the upper portion is better for music rooms. For general purpose rooms, a reverberation time in the middle portion of the band is
recommended.
* Average sound absorption coefficient for 6', 8', and 10' panels. Based on standard sound absorbing material per ASTM C-423 as
conducted by Riverbank Acoustical Laboratories.
Detailed architects specifications available from SweetSource, Spec-Disk from the factory or visit our website at www.eckelacoustic.com.
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