Directors Report

available from other manufacturers. It is important that the wall have sound absorption coefficients greater than 0.9 in the 1,000 to 4,000 Hz octave bands. Absorbing panels that have a vinyl protective cover may be reflective at higher frequencies and not suitable for this application. An alternative wall system could be a prefabricated concrete wall such as Verti-Crete or a fence having at least STC 20. This option will require sound absorbing panels to be attached to the wall or fence. Noise Barriers makes panels under the name QuietPerf that work for pickleball (see noisebarriers.com). A two inch panel is sufficient. Coverage must be at least 90% of the interior wall surface. 6.3 Installation Cost Estimates NOTE: These cost estimates do not include tax, general contractor mark up, insurance, permit fees, design and engineering fees, drawing fees, etc. All pricing is approximate and intended only for comparative analysis of differing noise control fencing systems and is subject to verification or modification by appropriate contractors. Actual costs for budgeting should be provided by licensed contractors.

6.3.1 SonaGuard MFG:

SOUNDFIGHTER http://www.soundfighter.com/ MATERIAL COST PER FACE FOOT, ($ / SF) [FOB Chandler AZ] $ 25 / SF COST PER RUNNING (LINEAR) FOOT @ 8' H, ($ / LF) $200/ LF LABOR $ 240 / LF CIP (Complete In Place) COST @ 8' H, ($ / LF) NOTES: 100% absorption at 1k & 2 kHz. $ 40 / LF

MATERIAL (including mounting hardware & posts)

Interior rockwool insulation is exposed, frame is colored plastic. Weather-resistance is considered good, 10-15 year lifespan is expected. Exposed face of rockwool may appear weathered over time but does not deteriorate and is still functional. Note: This product can be erected in a temporary framework. The manufacturer supplies a system for temporary or movable support. Post and panel system consists of 'H' shaped posts @ 6' o.c, w/ panels set vertically between them.

37 of 58 Spendiarian & Willis Acoustics & Noise Control LLC

12/15/2019

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