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Acoustical Barrier & Equipment Screen System

The Koch Acoustical Barrier System is a lightweight, sound-absorptive modular panel system that is placed between the noise source and receiver. The system is installed outdoors on the ground or on the roof in a vertical or horizontal configuration to create highly effective environmental noise reduction solutions. In addition to engineering support, we supply everything you need from support steel, doors, openings, flashing, fasteners, transportation, to assembly.

Koch's unique roll-forming coil processes enable fabrication of panels up to 22 feet, saving installation time and costs. Construction materials consist of corrosion-resistant galvannealed and galvanized steel and non-adsorbent, non- combustible mineral wool for outdoor exposure. Our baked on high scuff and abrasion, corrosion and chemical resistant powder coat paint finish is resistant to fading, cracking, peeling and marring.

Through decades of experience and product development, the Koch Acoustical Barrier System often exceeds customer expectations in most selection criteria including sound attenuation, appearance, cleanability, abuse resistance, stability, cost, and ease of installation.

Uses and Applications

Rooftop HVAC Equipment
Power Generation
Utility Transformers
Gas Compression Stations
Engine Generators
Outdoor Amphitheater
Waste Water Treatment
Manufacturing Facilities
Salvage Yards
Transportation: Highway, Airport, Rail
Industrial Exhaust Fans and Stacks
Loading Docks

Koch Acoustical Barrier System Advantages

Finest Appearance

Features tongue and groove interlocking modular panels
Koch’s 33” wide acoustical panels complement commercial architectural insulated panel systems

Superior Finish and Corrosion Resistance

High-scuff, abrasion- and weather-resistant baked on polyester powder coat finish is available in any color
Perforated sheets are coated on both sides to ensure precise coverage
Powder coat finish is protected during shipment and assembly with PVC wrap
All material is hot dipped galvanized and galvannealed steel
Panels are self-draining and acoustical fill is non-adsorbent

Quick, Lowest-Cost Installation

Features fewer components due to tongue-and-groove Interlocking seams which eliminates separate "H" joiners
Large, 33" x up to 20''-0" long panels are produced as a result of unique roll-forming processes
Truckload projects are packaged in lift-sized groups on open-top trucks for easy overhead crane or over-the-side forklift

Superior Service

AutoCAD approval prints, submittals and final assembly drawings are furnished with every project
Provides unmatched engineering technical expertise and project management support

Superior Performance

Sound reduction and absorption coefficient values are provided by Riverbank Acoustical Laboratories, the best independent source of valid acoustical data

Material Specifications:

Panel Exterior	18-gauge galvannealed steel
Panel Interior	22-gauge galvannealed steel perforated 3/32” diameter round holes on 3/16” staggered centers
Panel Frame	18-gauge galvanized steel
Acoustical Core	Mineral wool that is noncombustible, inert, mildew resistant, non-settling and features a flame spread of 15 and smoke developed rating of 0, per ASTM Standard E84
Module Width	33"
Panel Joint	Interlocking tongue and groove
Panel Thickness	4"
Length	16'-0" standard maximum when factory powder coat finished 22'-0" standard maximum when not factory finished
Colors	188 Standard RAL Colors
Accessories	Flashing, doors, windows, fasteners, support steel, AutoCAD drawings
Options	Other gauges of steel, custom widths, custom color matches and finishes.

Acoustical Performance

Frequency (Hz)		63	125	250	500	1000	2000	4000	8000
4" Thick STC 42 Panel
Transmission Loss	STC 42	21	21	30	41	52	59	64	67
Absorption Coefficient	Nrc 1.0	.18	.75	1.02	1.07	.98	.89	.80	.86

All Tests By Riverbank Acoustical Laboratories

George Koch Sons, LLC
10 South Eleventh Avenue
Evansville, IN 47744
Phone: 888-873-5624
888-USE-Koch
Fax: 812-465-9814
Email: DDH@Kochllc.com
Website: http://www.kochllc.com/