Cities Index.
Attachment 2 - Acoustics Summary

Coronado City Council
May 16, 2024

Document
Attachment 2 - Acoustics Summary
Meeting
May 16, 2024
Body
Coronado City Council
Original file
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Text extracted from the city's file for reading and search. Open the original on coronado.primegov.com. That file is the official record.

ACOUSTIC PROPERTIES SUMMARY Attachment 2
OPTION 1 OPTION 2 OPTION 3 OPTION 4 Alternate Option
WR Existing

Ceiling WR Internal WR Larger JDSC Grand Rm
Interior Upgrade + Option 1 Expansion Expansion AV Upgrade Acoustics Ranking by Consultant
1 least favorable to 5 best 2 3 3 4 1
Walls
♦Acoustic Panels
.75 to .95 NRC rating
None since all walls
have windows or
door openings
10 - 4'x4' panels
160 SF 40 ft long
2" thick
10 - 4'x4' panels
160 SF 40 ft long
2" thick
Panel size varies
384 SF
(west side wall only)
544 SF
(128 SF each side +
288 SF back wall)
♦Acoustic Drapes
(assumes full height)
.70 to .95 NRC ratng 2440 SF 3360 SF 3980 SF 4250 SF 5300 SF ♦Motorized Double Blackout
Shades:one side blackout
& other side solar, .6 NRC rating 1116 SF 1414 SF 1200 SF 1000 SF 2300 SF Ceiling
♦High NRC Acoustic Ceiling Tile
.80 to .95 NRC rating 1680 SF 1680 SF 2320 SF 2931 SF Not Applicable ♦Ceiling Clouds
NRC varies depending upon
configuration 24 EA 32 EA 25 EA 32 EA 12 EA
♦Perforated Metal or
Wood Slat System & sound
insulation above
.75 to .95 NRC rating 1680 SF 1680 SF 2320 SF 2931 SF
1966 SF
Existing linear wood
panelized system
Floor
Luxury Vinyl Tile (LVT)
.03 to.05 NRC rating 1680 SF 1680 SF 2320 SF 2931 SF 1966 SF Existing * Budget Options 1 thru 4 ranges between $130k to $160k (Barrie & Co. October 26, 2023 cost estimate).

JDSC budget is approximately $160k including removing the divider header.

Range difference is minimal relative to overall project cost

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