®
www.kineticsnoise.com
Acoustical Curtain Systems
Kinetics Noise Control
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02 l Kinetics Acoustical Curtain Systems
Kinetics Noise Control’s acoustical curtain systems are custom engineered to your application for acoustic performance and structural integrity. A cost effective solution to reduce unwanted noise, acoustical curtain systems are available as both barrier walls and complete enclosures. All systems are designed and manufactured to meet OSHA and customer requirements regarding noise reduction, maintenance access and ventilation to remove unwanted heat build-up. Options include view ports, ventilation silencers, acoustic louvers, and rigid roof panels.
Common applications are encountered in industrial and
commercial facilities. OEM customers incorporate acoustical curtain systems in either roll form, die-cut or custom system formats. The acoustical curtain systems can be designed for noise reduction up to 25 dBA dependent upon the noise source sound spectrum shape (low, mid, high frequency
or a combination).
Acoustical Curtain Systems
Fans, Pumps, Compressors (floor or skid mounted)
Plant and Facility Dividers (fixed or movable)
Portable, roll-away barriers/screens
Temporary construction areas
Manufacturing processes
Dust collection systems
Process machinery
In-plant offices
Generators
Blowers
Chillers
Pumps
Typical Applications:
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• Multitude of designs to meet every application
• Each system is custom-engineered by Kinetics engineering team providing optimal noise reduction, structural integrity all economically
• Designs consider maintenance access, view ports, required passive/active silenced ventilation plus easily pared with many other Kinetics manufactured acoustic products, (rigid roof panels, acoustic louvers, silencers, etc.) • Every system is designed for easy installation, relocation and modification • Systems are supplied with project specific, AutoCAD submittals, details and piece-marked installation drawings • Curtain panels and track are all factory cut-to-size and tagged for easy, quick and cost effective installation • Product performance is backed by independent testing in a NVLAP accredited laboratory per ASTM E90 (transmission loss) and ASTM C423 (sound absorption)
• Products meet ASTM E84, Class A fire rating
• Exhibit extremely long service life
• Excellent resistance to oil and chemicals.
• Easily cleanable
Advantages of Kinetics Acoustical Curtain Systems
KINETICS NOISE CONTROL, INC. l 030051
04 l Kinetics Acoustical Curtain Systems
Acoustical Curtain Composite Panel Data
Composite panels are highly effective at reducing sound because they both block and absorb noise.
The internal layers of our KNC-100BQQ curtain
The following tables provide comparisons between of our most popular models of composite curtains and acoustical performances demonstrated by those models.
Standard Transmission Loss (dB)
Frequency (Hz)
STC*
21 26
23 27
24 29
33 20
26 4K
32 40
46 49
50 53
55 31
37 2K
27 33
38 42
46 50
51 27
33 1K
21 28
27 30
31 41
40 22
28 500
16 21
17 22
18 28
30 17
23 250
13 17
12 16
12 16
20 13
19 125
12 13
6 10
7 11
16 13
19 lb/ft2
0.5 1.0
0.7 1.3
1.0 1.5
2.5 0.5
1.0 kg/m2
2.44 4.89
3.4 6.4
4.9 7.4
12.5 2.44
4.89 KNC-50RB
KNC-100RB
KNC-50RBQ
KNC-100RBQ
KNC-50BQQ
KNC-100BQQ
KNC-200BQQ
KNC-50C
KNC-100C
Product
Weights
*Per ASTM E90, Standard Recommended Practice for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions Absorption Characteristics
NRC*
0.70 0.80
1.10 4K
0.62 1.02
1.07 2K
0.64 1.04
1.10 1K
0.84 1.02
1.18 500
0.85 0.79
250
0.47 0.33
0.83 125
0.12 0.08
0.30 Q1 - 1" Quilt
Product
1.16 Q2 - 2" Quilt
Q4 - 4" Quilt
Frequency (Hz)
*Per ASTM C423, Standard Method of Test for Sound Absorption of Acoustic Materials in Reverberant Rooms 0052
KINETICS NOISE CONTROL, INC. l 05
Typical Assembly for Floor Mounted System
Floor Mounted
The most common curtain application is mounting to the floor.
Hardware is provided to support the track from the floor using columns and base plates.
Ceiling Suspended
Ceiling suspended systems are specified
when access to the structure is limited.
Threaded rod can be secured to these
supports for curtain suspension.
Typical Assembly for Ceiling Suspended System
Double Track Corner
Column Base Plate
Ceiling Suspended Double TrackCeiling suspended single track Ceiling suspended corner bracket 0053
06 l Kinetics Acoustical Curtain Systems
Typical Assembly for Heavy Duty System
Heavy Duty
Heavy duty floor mounted hardware is used to support
large systems. Structural steel will be used when the
application involves a significant amount of weight.
Kinetics engineers design the structure from the base
plate and upwards.
Wall mounted hardware is used when the track system is running adjacent to a wall. The wall mount down option is used to mount track at ceiling level. The wall mount up option is used to mount track above door openings.
Typical Assembly for Wall Mounted System (Up)
Single Track - “Up”
(left)
Double Track - “Up”
(right)
Typical Assembly for Wall Mounted System (Down)
Single Track -
“Down” (left)
Double Track -
“Down” (right)
Double Track
Column Base Plate
Single Track
(Wall Mounted)
Wall Mounted
Down Up
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KINETICS NOISE CONTROL, INC. l 07
Typical Assembly for Ceiling Mounted System
Standard Components
Typical components used on all systems.
Ceiling Mounted Double Track Ceiling Mounted Corner Bracket Ceiling Mounted Single TrackCeiling Connector Splice Trolley Hook Roller (Curved) Track End-Stop
Ceiling Mounted
When the structure is accessible, curtain
systems can be directly mounted to the
ceiling or beam. Ceiling mounted hardware
comes equipped with mounting holes for
easy and quick attachment.
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ACS │ 05/17Kinetics Noise Control, Inc. is continually upgrading the quality of our products.
We reserve the right to make changes to this and all products without notice.
MADE IN USA
kineticsnoise.com
[email protected]
1-800-959-1229®
Engineering, Manufacturing, Care and Quality
Kinetics Noise Control, Inc. has extensive experience designing and manufacturing innovative products to control noise and vibration.
Established in 1958 as industrial consultants focused on the control of sound and vibration, Kinetics now produces the industry’s largest selection of innovative products and solutions to control airborne noise, isolate structure-borne vibration, enhance room acoustics, create quiet spaces, and restrain non-structural building systems. Kinetics features an experienced staff of professional engineers, customer support, and sales representatives worldwide who are ready to work with you. Kinetics has facilities in Ohio, California, Ontario, and Hong Kong.
You’ll find the largest selection of standard and custom designed industrial noise and vibration control products in the world at Kinetics Noise Control, Inc. Let us help you hear the difference. 0056
2021-12-29as-abbc-13ext-audioseal-exterior-sound-blanket-data-sheet 2420 Grenoble Road
Richmond, VA 23294
Toll Free: 800-782-5742
AUDIOSEAL® ABBC-13EXT EXTERIOR SOUND BLANKET TECHNICAL DATA SHEET For every environment of your life
TECHNICAL CHARACTERISTICS
SIZE: 54" x 96", Up to 54" x 20'
THICKNESS: 1", 2” (actual size may vary
after quilt); 4" (special order)
CONTRUCTION: UV resistant heavy-duty vinyl
coated polyester faced quilted
fiberglass backed with a one
pound per square foot reinforced
mass loaded vinyl sound barrier
FACING COLOR: Grey, Tan (standard)
Black, Off-White (special order)
BARRIER COLOR: Grey, Tan (standard)
WEIGHT (P.S.F.): 1.2 (1"), 1.45 (2"), 2.9 (4")
TEMP RANGE: -20 to 180 degrees FDESCRIPTION
The ABBC-13EXT AudioSeal® Exterior Sound Blanket
is a barrier backed panel used to block and absorb
sound for exterior applications.
The blanket is an exterior grade barrier backed
composite (BBC), consisting of UV and tear resistant
vinyl coated polyester facing. The facing is quilted on environmentally sustainable 1-2 inch fiberglass batting with Gore® Tenara® thread. It also has a reinforced
1 lb./sq. ft. mass loaded vinyl barrier bonded to one side.
These blankets are a combination of sound blocking
and sound absorbing material. The sound attenuation
blankets are constructed with grommets across
the top and Velcro® along the vertical edges of the
blankets for easy installation and layering. The exterior grade ABBC-13EXT is great for use in outdoor
environments where extended lifespan and durability
is required.
SOUND ABSORPTION (ASTM C 423)
Thickness 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz NRC 1"0.18 0.68 0.74 0.72 0.42 0.29 0.65
2"0.45 0.96 0.87 0.66 0.47 0.28 0.75
4"0.67 1.05 0.97 0.84 0.86 0.52 0.95
SOUND TRANSMISSION LOSS (ASTM E90 & E413)
Thickness 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz STC 1"15 17 28 40 45 52 29
2"14 20 32 41 42 41 33
4"16 21 30 41 52 56 34
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Veneklasen Associates
Consultants in Acoustics | Noise | Vibration | AV | IT
1711 Sixteenth Street Santa Monica California 90404 tel: 310.450.1733 fax: 310.396.3424 www.veneklasen.com
August 15, 2022
Tariq’s Property Management
2340 Lane Street
San Francisco, California 94124
Attention: Mr. Mubasher Choudhery
Subject: 1350 North Texas Street
Fairfield, CA
Exterior Noise Analysis
Veneklasen Project No. 8168-001
Dear Mubasher:
Veneklasen has completed our review of the 1350 North Texas project located in Fairfield, California. This report predicts the exterior noise level at the site using sound measurements and computer modeling. Using this information, acceptable barrier design was determined to meet project requirements. This report gives the results of our findings.
1.0 INTRODUCTION
This study was conducted to determine the impact of the exterior noise sources on the neighboring residences. Veneklasen’s scope of work included measuring existing sound levels, calculating the exterior noise levels impacting the neighbors and determining the method, if any, required to reduce the exterior sound levels to meet the project’s exterior noise requirements.
The project consists of a current towing yard which will offer indoor auto repair services on 1350 North Texas Street. Residential properties are adjacent to the east, with another automobile storage yard to the south and north, with East Wyoming Street immediately north of the property. A former auto body repair shop is immediately west of the property, with North Texas Street west of that property.
2.0 NOISE CRITERIA
2.1 Exterior Noise Level - Residential
Solano County Code Section 28.1-40 gives the noise level permissible by receiving residential uses to be 55 dBA from 7 am to 7 pm and 50 dBA from 7 pm to 7 am outdoors.
Fairfield Municipal Code 25.1403 gives the noise level permissible by receiving residential uses to be 50 dBA from 7 am to 10 pm and 45 dBA from 10 pm to 7 am (average, Leq) outdoors. The same section limits maximum noise levels (Lmax) to 70 dBA during the daytime and 65 dBA during nighttime hours.
2.2 Interior Noise Level - Residential
Solano County Code Section 28.1-30 gives the noise level permissible by receiving residential uses to be 55 dBA from 7 am to 7 pm and 45 dBA from 7 pm to 7 am inside residential dwelling units.
Fairfield Municipal Code 25.1403 gives the interior noise level permissible by receiving residential uses to be 40 dBA from 7 am to 10 pm and 35 dBA from 10 pm to 7 am (average, Leq). The same section limits maximum noise levels (Lmax) to 60 dBA during the daytime and 55 dBA during nighttime hours.
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Veneklasen Associates
1350 North Texas Street;
Exterior Noise Analysis
Veneklasen Project No. 8168-001
August 15, 2022–Page 2
www.veneklasen.com
3.0 EXTERIOR NOISE ENVIRONMENT
3.1 Noise Measurements
Veneklasen visited the project site and measured existing sound levels over 24 hours from Tuesday August 9 to Wednesday August 10, 2022. Automobile traffic on North Texas Street was the primary source of noise affecting the area and controlled the ambient sound levels. Hourly average sound levels ranged from 59 dBA to 52 dBA from 7 am to 7 pm and from 55 dBA to 50 dBA during 7 pm to 7 am. Hourly maximum sound levels ranged from 76 dBA to 66 dBA during the day and 78 dBA to 60 dBA at night. Appendix I gives the measurement results and Figure 1 shows the sound measurement location .
Figure 1 – Aerial View of Project Site Showing Site Location, Measurement Location and Fence Location
4.0 NOISE BARRIER CALCULATION
4.1 Barrier Construction
The project will use a noise barrier along the east property line to block noise from the project to neighboring residences. A wood fence with no gaps currently exists along part of the property line; this currently acts as a noise barrier where it occurs.
Barrier construction must have a surface weight of 0.5 lbs per square foot. Examples of constructions that achieve this are sound control blankets fastened to the existing chain link fence, wood fence without gaps (for example, shiplap construction), sheet metal or concrete barriers.
Measurement
Location
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Veneklasen Associates
1350 North Texas Street;
Exterior Noise Analysis
Veneklasen Project No. 8168-001
August 15, 2022–Page 3
www.veneklasen.com
The 6-foot barrier height above grade is required to achieve the project requirements. Gaps must not occur between the bottom of the barrier and the ground. Coverage must extend north to the property line and south to the existing wood fence, as shown in red in Figure 1. This length is approximately 100 feet.
Veneklasen used the blanket transmission loss ratings shown in Appendix I. Examples of noise control blankets or curtains that achieve these minimum ratings include Kinetics Noise Control KNC-50RB and ABBC-13EXT AudioSeal Exterior Sound Blanket.
4.2 Exterior Noise Level – Residential
Veneklasen calculated the exterior noise level at the residential location given the measured noise environment and the barrier coverage as described above. Table 1 shows the predicted exterior noise levels based on the barrier construction as described in Section 4.1 and Appendix I. Please note that the barrier will shield the project noise as well as automobile traffic noise from North Texas Street.
Table 1 – Calculated Exterior Noise Levels, Maximum (Lmax) and Average (Leq) Time dBA
Lmax Leq
Daytime 63 46
Nighttime 65 42
Table 1 shows that the Code daytime requirements of 70 dBA Lmax (maximum) and 50 dBA Leq (average) and nighttime requirements of 65 dBA Lmax and 45 dBA Leq are calculated to be satisfied.
Auto body repairs will not occur during nighttime hours.
4.3 Interior Noise Level – Residential
Overall noise levels typically decrease by at least 15 dBA through open windows; therefore, the interior Code requirements are easily satisfied because the interior noise limits are at most 15 dBA quieter and the exterior noise level requirements are calculated to be satisfied.
5.0 SUMMARY
The following summarizes the acoustical items required to satisfy the City of Fairfield and County of Solano noise requirements as described in this report.
The noise control blankets or curtains must meet the minimum transmission loss ratings as given in Appendix I. Examples of noise control blankets or curtains that achieve these minimum ratings include Kinetics Noise Control KNC-50RB and ABBC-13EXT AudioSeal Exterior Sound Blanket. Noise control blanket coverage must be at least 6-feet above grade. Gaps must not occur between the bottom of the blankets and the ground. Coverage must extend north to the property line along E Wyoming St and south to the existing wood shiplap fence, as shown in red in Figure 1. Auto body repairs must occur within a building per Fairfield Code 25.1404 and be limited to between 7 am and 10 pm.
Various noise mitigation methods may be utilized to satisfy the noise criteria described in this report.
Alteration of mitigation methods that deviate from requirements should be reviewed by the acoustical consultant.
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Veneklasen Associates
1350 North Texas Street;
Exterior Noise Analysis
Veneklasen Project No. 8168-001
August 15, 2022–Page 4
www.veneklasen.com
If you have any questions or comments regarding this report, please do not hesitate to contact us.
Sincerely,
Veneklasen Associates, Inc.
Ryan Schofield
Senior Associate
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Veneklasen Associates
1350 North Texas Street;
Exterior Noise Analysis
Veneklasen Project No. 8168-001
August 15, 2022–Page 5
www.veneklasen.com
APPENDIX I – NOISE MEASUREMENT RESULTS
Measurement results from the measurement location illustrated in Figure 1 are summarized here.
Hour dBA
Lmax Leq L90
Tuesday 8/9 3 pm 72 54 48
Tuesday 8/9 4 pm 71 54 49
Tuesday 8/9 5 pm 67 54 50
Tuesday 8/9 6 pm 88 59 50
Tuesday 8/9 7 pm 75 55 48
Tuesday 8/9 8 pm 75 54 49
Tuesday 8/9 9 pm 74 53 49
Tuesday 8/9 10 pm 60 50 47
Tuesday 8/9 11 pm 61 50 46
Wednesday 8/10 12 am 78 52 45
Wednesday 8/10 1 am 62 47 43
Wednesday 8/10 2 am 67 49 44
Wednesday 8/10 3 am 76 49 42
Wednesday 8/10 4 am 78 53 45
Wednesday 8/10 5 am 62 50 47
Wednesday 8/10 6 am 68 52 49
Wednesday 8/10 7 am 75 54 48
Wednesday 8/10 8 am 66 52 48
Wednesday 8/10 9 am 70 52 48
Wednesday 8/10 10 am 69 53 48
Wednesday 8/10 11 am 68 53 47
Wednesday 8/10 12 pm 76 55 47
Wednesday 8/10 1 pm 71 52 47
Wednesday 8/10 2 pm 68 52 47
A-weighting (dBA) The sound pressure level in decibels as measured in an A-weighting filter network. The A-weighting de-emphasizes the low frequency components of the sound in a manner similar to the frequency response of the human ear and correlates well with subjective reactions to noise.
Decibel (dB) A unit describing the amplitude of sound equivalent to 20 times the logarithm, to the base 10, of the ratio of the pressure of the sound to the reference pressure of 20 Pa. Used to quantify sound pressure levels.
Equivalent Sound Level (Leq) The time-weighted average noise level during the stated measurement period.
L90 The sound level equivalent to the quietest 10% of the time. Solano County Noise Code defines this as the hourly ambient sound level.
Lmax The maximum sound level.
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Veneklasen Associates
1350 North Texas Street;
Exterior Noise Analysis
Veneklasen Project No. 8168-001
August 15, 2022–Page 6
www.veneklasen.com
APPENDIX II – NOISE CONTROL BLANKET MINIMUM TRANSMISSION LOSS REQUIREMENTS In order to meet the predicted noise levels described in Section 4.0, the noise control blankets shall meet the following requirements:
Table 3– Noise Control Blanket Requirements: Minimum Octave Band Transmission Loss and STC Rating Weight
Minimum Transmission Loss
Octave Band Center Frequency (Hz)
Min.
STC
Rating 125 250 500 1000 2000 4000
0.5 lb./ft2 10 12 15 18 20 20 20
The transmission loss values in the table above can be met with the following products:
1. Kinetics Noise Control KNC-50RB, KNC-100RB, KNC-100RBQ, and KNC-100BQQ
2. ABBC-13EXT AudioSeal Exterior Sound Blanket
Alternative products require the following:
Independent laboratory acoustical test reports should be provided for review by the design team to ensure compliance with acoustical performance requirements. Lab shall be a current member of the National Voluntary Laboratory Accreditation Program (NVLAP) under the National Institute for Standards and Technology (NIST) for accreditation and shall be pre-approved by Veneklasen Associates, Inc. Tests are required to be completed in North America. Lab reports shall be in compliance with ASTM standard E90 and be no more than 10 years old (from date of submission on specific project). Veneklasen requires invitation to witness acoustical testing completed to demonstrate compliance with the requirements of this report and reserves the right to exclude test reports from laboratories that are not pre-approved by Veneklasen Associates, Inc. for the specific test standard. If test reports are not available for the product, Veneklasen would require that the product be tested at a third-party independent lab accredited through NVLAP for the ASTM E90.
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