H1810.12-113-11-R0
ACOUSTICAL PERFORMANCE TEST REPORT
ASTM E 90 AND ASTM E 492
Rendered to
AMORIM CORK COMPOSITES
Series/Model: AcoustiCORK® ECOx2 Sound Reduction Underlayment for LVT Plank Flooring
Specimen Type: 152 mm (6") Concrete Slab with Drop Ceiling
Overall Size: 3023 mm by 3632 mm (119" by 143")
STC
IIC
62
66
Test Specimen Identification:
Floor Topping: 3 mm (0.12") Flexco Premium Wood Vinyl Plank
Floor Underlayment: 1.9 mm (0.07") AcoustiCORK® ECOx2 Sound Reduction Underlayment
for LVT Plank Flooring
Floor Slab: 152.4 mm (6") 5000 PSI Concrete Slab
Main Beams: 43 mm (1.69") Armstrong HD8906 Drywall Main Beam
Cross Tees: 37.3 mm (1.47") Armstrong XL8945P Cross Tee
Insulation: 88.9 mm (3.5") Johns Manville Kraft Faced R-13 Fiberglass Insulation
Ceiling: 15.9 mm (0.63") National Gypsum Gold Bond® Fire-Shield® Type X Gypsum Panel
Reference should be made to Intertek-ATI Report H1810.12-113-11 for complete test
specimen description. This page alone is not a complete report.
130 Derry Courtaa
York, PA 17406aa
www.archtest.com · www.intertek.com/building
p. 717.764.7700
f. 717.764.4129
H1810.12-113-11-R0
Page 1 of 5
Acoustical Performance Test Report
AMORIM CORK COMPOSITES
26112 110th Street
Trevor, Wisconsin 53179
Report
Test Date
Report Date
H1810.12-113-11
05/19/17
10/13/17
Project Scope
Architectural Testing, Inc., an Intertek company (Intertek-ATI), was contracted to conduct airborne
sound transmission loss and impact sound transmission tests. This report is a reissue in the name of
Amorim Cork Composites through written authorization from the original report holder. The complete
test data is included as attachments to this report. The full test specimen was assembled on the day of
testing by Intertek-ATI. All materials provided by the client were installed on an existing Intertek-ATI
assembly (152 mm (6") Concrete Slab with Drop Ceiling) utilizing Intertek-ATI-supplied materials.
Test Methods
The acoustical tests were conducted in accordance with the following standards. The
equipment listed in the attachments meets the requirements of the following standards.
ASTM E 90-09 (2016), Standard Test Method for Laboratory Measurement of Airborne Sound
Transmission Loss of Building Partitions
ASTM E 413-16, Classification for Rating Sound Insulation
ASTM E 492-09(2016)e1, Standard Test Method for Laboratory Measurement of Impact Sound
Transmission Through Floor-Ceiling Assemblies Using the Tapping Machine
ASTM E 989-06 (2012), Classification for Determination of Impact Insulation Class (IIC)
ASTM E 2235-04 (2012) Standard Test Method for Determination of Decay Rates for Use in Sound
Insulation Test Methods
Test Procedure
All testing was conducted in the VT test chambers at Intertek-ATI located in York,
Pennsylvania. The microphones were calibrated before conducting the tests.
The airborne transmission loss test was conducted in accordance with the ASTM E 90 test
method using the single direction method. Two background noise sound pressure level and
five sound absorption measurements were conducted at each of five microphone positions.
Four sound pressure level measurements were made simultaneously in both rooms, at each
of five microphone positions.
130 Derry Courtaa
York, PA 17406aa
www.archtest.com · www.intertek.com/building
p. 717.764.7700
f. 717.764.4129
H1810.12-113-11-R0
Page 2 of 5
Test Procedure (Continued)
The impact sound transmission test was conducted in accordance with the ASTM E 492 test
method. Two background noise sound pressure level, two sound pressure level
measurements with the tapping machine operating at each position specified by ASTM E 492,
and five sound absorption measurements were conducted at each of five microphone
positions.
The air temperature and relative humidity conditions were monitored and recorded during all
measurements.
Test Conditions
Source Room
Receive Room
Minimum Temperature
21.6°C (70.9°F)
Minimum Temperature
22.8°C (73°F)
Maximium Temperature
21.8°C (71.2°F)
Maximium Temperature
22.8°C (73.1°F)
Minimum Relative Humidity
57%
Minimum Relative Humidity
47%
Maxmimum Relative Humidity
57%
Maxmimum Relative Humidity
48%
Test Calculations
The STC (Sound Transmission Class) and IIC (Impact Insulation Class) ratings were calculated
in accordance with ASTM E 413 and ASTM E 989, respectively.
Test Specimen Materials and Installation Details
Material
Dimensions
(mm/inch)
Thickness
Manufacturer and Series
(mm/inch)
Quantity
Average
Weight
914.4 by 101.6
10.98 m²
4.51 kg/m²
3 / 0.12
Flexco
36 by 4
118.19 ft²
0.92 lb/ft²
Premium Wood Vinyl
Note: Adhered to the underlayment with Excelsior MS 700 Modified Silane Wet Set Resilient Flooring
Plank
Adhesive using a 0.79 mm by 1.59 mm by 0.79 mm (1/32" by 1/16" by 1/32") trowel. Adhesive was
allowed to cure per manufacturer's specifications.
3023 by 1041
10.98 m²
0.69 kg/m²
1.9 / 0.07 AcoustiCORK® ECOx2
119 by 41
118.19 ft²
0.14 lb/ft²
Sound Reduction
Note: A sheet of 2 mil polyethylene plastic sheeting was adhered to the floor slab with 3M Super 77
Underlayment for LVT
spray adhesive. The underlayment was adhered to the sheeting with Excelsior MS 700 Modified
Plank Flooring
Silane Wet Set Resilient Flooring Adhesive using a 0.79 mm by 1.59 mm by 0.79 mm (1/32" by 1/16"
by 1/32") trowel. Adhesive was allowed to cure per manufacturer's specifications.
3023 by 3632
10.98 m²
366.18 kg/m²
152.4 / 6 5000 PSI
119 by 143
118.19 ft²
75 lb/ft²
Concrete Slab
Note: Installed in a test frame flush to the source room. Mats of #5 reinforcing bars were placed 25.4
mm from both the top and bottom of the slab, with bars spaced on 305 mm centers in both
38.1 by 2870
10.9 lin m
0.45 kg/m
43 / 1.69 Armstrong HD8906
1.5 by 113
35.76 lin ft
0.3 lb/ft
Note: Twelve gauge hanger wires were attached to the bottom side of the concrete at twelve
Drywall Main Beam
locations and then to the main beams. The hanger wire was twisted around itself a minimum of three
times within 76 mm creating a 305 mm plenum. The measured steel thickness is 0.5 mm.
H1810.12-113-11-R0
Page 3 of 5
Test Specimen Materials and Installation Details (Continued)
Material
Cross Tee
Dimensions
(mm/inch)
Thickness
Manufacturer and Series
(mm/inch)
Quantity
38.3 by 1219
1.5 by 48
37.3 / 1.47
27.2 lin m
89.24 lin ft
Armstrong XL8945P
Average
Weight
0.45 kg/m
0.3 lb/ft
Note: Inserted into the main beams on 610 mm centers. The measured steel thickness is 0.5 mm.
Fiberglass Insulation
2962 by 584
116.6 by 23
88.9 / 3.5
Johns Manville Kraft Faced R-13
10.98 m²
118.19 ft²
1.33 kg/m²
0.27 lb/ft²
Note: Loose laid onto the ceiling grid system
Gypsum Panel
3023 by 1219
National Gypsum Gold Bond® Fire10.56 m²
11.23 kg/m²
15.9 / 0.63
119 by 48
Shield® Type X
113.67 ft²
2.3 lb/ft²
Note: Fastened with 25.4 mm fine thread drywall screws on 305 mm centers. Seams and perimeter
sealed with Pecora AC-20® Acoustical Sealant and covered with pressure-sensitive tape.
Comments
The total weight of the floor/ceiling assembly was 4228.1 kg / 9320.3 lbs. Intertek-ATI will
store samples of the test specimen for four years. Photographs of the test specimen are
included in the attachments. A drawing of the test specimen is included in the attachments.
H1810.12-113-11-R0
Page 4 of 5
This report is reissued in the name of Amorim Cork Composites through written authorization
from the original report holder. The original Report No. is H1810.04-113-11.
Intertek-ATI will service this report for the entire test record retention period. Test records,
such as detailed drawings, datasheets, representative samples of test specimens, or other
pertinent project documentation, will be retained by Intertek-ATI for the entire test record
retention period. The test record retention period ends four years after the test date.
This report does not constitute certification of this product nor an opinion or endorsement by
this laboratory. It is the exclusive property of the client so named herein and relates only to
the specimen tested. This report is intended to help in the client’s quality assurance program,
but it does not represent a continuous or exhaustive evaluation of the specimen tested or of
other products or materials that were not evaluated. The statements and data provided
herein do not constitute approval, disapproval, certification, or acceptance of performance or
materials.
This report may not be reproduced, except in full, without the written approval of IntertekATI.
FOR INTERTEK-ATI:
Daniel B. Mohler
Project Lead - Acoustical Testing
Jordan Strybos
Project Manager - Acoustical Testing
Attachments (7 pages): This report is complete only when all attachments listed are included.
Instrumentation (1)
Airborne Sound Transmission Loss Data (2)
Impact Sound Transmission Data (2)
Photographs (1)
Drawings (1)
* Stated by Client/Manufacturer
N/A - Non Applicable
H1810.12-113-11-R0
Page 5 of 5
Revision Log
Revision
R0
Date
Page(s)
10/13/17
N/A
Description
Original Report Issue - Reissue of
Report No. H1810.04-113-11 in the
name of Amorim Cork Composites.
This report produced from controlled document template ATI 00629(d), Revised: 01/11/17.
H1810.12-113-11-R0
Attachments
Instrumentation
Instrument
Manufacturer
Model
ATI Number
Date of
Calibration
Data Acquisition Unit
National Instruments
PXI-4462
65124
06/16
Microphone Calibrator
Norsonic
1251
INT00127
03/17
Receive Room Microphone
PCB Piezotronics
378C20
65617
05/17
Receive Room Microphone
PCB Piezotronics
378B20
63744
05/17
Receive Room Microphone
PCB Piezotronics
378B20
63745
05/17
Receive Room Microphone
PCB Piezotronics
378B20
63746
09/16
Receive Room Microphone
PCB Piezotronics
378B20
63747
05/17
Receive Room Environmental
Indicator
Comet
T7510
63810
63811
10/16
10/16
Source Room Microphone
PCB Piezotronics
378B20
63738
04/17
Source Room Microphone
PCB Piezotronics
378B20
63739
04/17
Source Room Microphone
PCB Piezotronics
378B20
63740
04/17
Source Room Microphone
PCB Piezotronics
378B20
63742
04/17
Source Room Microphone
PCB Electronics
378B20
63741
04/17
Source Room Environmental
Indicator
Comet
T7510
63812
11/16
Tapping Machine
Look Line s.r.l.
EM50 (TM50)
65351
02/17
* The calibration frequency for this equipment is every two years per the manufacturer's recommendation.
Test Chambers
VT Receive Room Volume
155.77 m³ (5500.85 ft³)
VT Source Room Volume
190 m³ (6709.79 ft³)
*
H1810.12-113-11-R0
AIRBORNE SOUND TRANSMISSION LOSS
ASTM E 90
Test Date
Data File No.
Client
Description
05/19/17
H1810.04
Amorim Cork Composites
3 mm (0.12") Flexco Premium Wood Vinyl Plank, 1.9 mm (0.07") AcoustiCORK® ECOx2 Sound Reduction
Underlayment for LVT Plank Flooring, 152.4 mm (6") 5000 PSI Concrete Slab, 43 mm (1.69") Armstrong
HD8906 Drywall Main Beam, 37.3 mm (1.47") Armstrong XL8945P Cross Tee, 88.9 mm (3.5") Johns Manville
Kraft Faced R-13 Fiberglass Insulation, 15.9 mm (0.63") National Gypsum Gold Bond® Fire-Shield® Type X
Specimen Area
Technician
Freq
(Hz)
50
63
80
100
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000
6300
8000
10000
Background
Absorption
SPL
(dB)
(m²)
37.5
33.9
37.2
23.5
41.8
16.7
33.9
11.8
34.0
10.2
33.1
9.6
28.4
10.6
29.4
9.8
25.5
9.7
24.4
8.4
23.2
8.2
25.0
7.6
23.1
8.0
19.0
7.8
18.7
8.1
15.8
8.0
12.3
8.7
9.6
10.0
8.5
10.4
7.4
11.7
6.5
13.4
6.7
16.2
7.0
20.9
7.2
25.2
STC Rating
Deficiencies
Notes:
10.98 m²
Daniel B. Mohler
62
26
Source
SPL
(dB)
104
102
109
107
104
107
104
103
106
104
103
102
102
102
100
100
101
96
98
98
95
93
93
92
Receive
SPL
(dB)
62
63
67
68
63
63
57
53
53
48
43
39
38
37
35
33
34
30
28
27
23
16
14
9
Specimen
TL
(dB)
37
36
40
39
41
44
48
51
54
58
61
65
66
67
67
68
68
67
70
71
72
75
77
79
95%
Number
Confidence
of
Limit
Deficiencies
4.30
4.40
5.10
2.00
1.30
5
1.30
5
1.00
4
0.80
4
0.70
4
0.70
3
0.40
1
0.40
0
0.70
0
0.40
0
0.30
0
0.40
0
0.40
0
0.40
0
0.40
0
0.30
0
0.40
0.60
0.70
0.60
-
(Sound Transmission Class)
(Sum of Deficiencies)
1) Receive Room levels less than 5 dB above the Background levels are highlighted in yellow.
2) Specimen TL levels listed in red are potentially limited by the laboratory flanking limit.
3) Specimen TL levels listed in blue indicate the lower limit of the transmission loss.
4) Specimen TL levels listed in green indicate that there has been a filler wall correction applied
ATI 00614, Revised: 01/11/17
Page 1 of 2
H1810.12-113-11-R0
AIRBORNE SOUND TRANSMISSION LOSS
ASTM E 90
Test Date
Data File No.
Client
Description
05/19/17
H1810.04
Amorim Cork Composites
3 mm (0.12") Flexco Premium Wood Vinyl Plank, 1.9 mm (0.07") AcoustiCORK® ECOx2 Sound Reduction
Underlayment for LVT Plank Flooring, 152.4 mm (6") 5000 PSI Concrete Slab, 43 mm (1.69") Armstrong
HD8906 Drywall Main Beam, 37.3 mm (1.47") Armstrong XL8945P Cross Tee, 88.9 mm (3.5") Johns Manville
Kraft Faced R-13 Fiberglass Insulation, 15.9 mm (0.63") National Gypsum Gold Bond® Fire-Shield® Type X
Specimen Area
Technician
10.98 m²
Daniel B. Mohler
Airborne Sound Transmission Loss
100
Sound Transmission Loss (dB re: 20 mPa)
90
80
70
60
50
40
30
20
10
Specimen TL
Contour Curve
8000
4000
2000
1000
500
250
125
63
0
Frequency (Hz)
ATI 00614, Revised: 01/11/17
Page 2 of 2
H1810.12-113-11-R0
IMPACT SOUND TRANSMISSION
ASTM E 492
Test Date
Data File No.
Client
Description
05/19/17
H1810.04
Amorim Cork Composites
3 mm (0.12") Flexco Premium Wood Vinyl Plank, 1.9 mm (0.07") AcoustiCORK® ECOx2 Sound Reduction
Underlayment for LVT Plank Flooring, 152.4 mm (6") 5000 PSI Concrete Slab, 43 mm (1.69") Armstrong
HD8906 Drywall Main Beam, 37.3 mm (1.47") Armstrong XL8945P Cross Tee, 88.9 mm (3.5") Johns Manville
Kraft Faced R-13 Fiberglass Insulation, 15.9 mm (0.63") National Gypsum Gold Bond® Fire-Shield® Type X
Specimen Area
Technician
Freq
Background SPL
Absorption
(Hz)
50
63
80
100
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000
6300
8000
10000
(dB)
37.1
37.6
41.4
34.1
34.1
32.4
28.6
29.6
25.5
24.4
23.1
24.7
23.3
19.6
18.7
16.0
12.4
9.7
8.6
7.4
6.6
6.7
7.0
7.1
(m²)
35.4
23.3
18.0
11.3
10.3
9.7
10.5
10.4
9.6
8.3
8.0
7.7
8.0
7.8
8.0
8.0
8.8
10.0
10.4
11.7
13.3
16.2
21.0
25.1
IIC Rating
Deficiencies
Note:
10.98 m²
Daniel B. Mohler
66
25
95%
Number
Normalized Impact
SPL
Confidence
of
(dB)
Limit
Deficiencies
59
3.1
53
3.4
47
1.5
52
0.9
6
48
1.2
2
48
1.1
2
47
0.7
1
50
0.8
4
50
0.7
4
48
0.5
3
45
0.6
1
45
0.4
2
42
0.5
0
35
0.5
0
28
0.7
0
21
0.8
0
17
1.1
0
13
1.0
0
14
0.8
0
10
0.6
7
0.5
7
0.3
8
0.2
9
0.2
-
(Impact Insulation Class)
(Sum of Deficiencies)
Receive Room levels less than 5 dB above the Background levels are highlighted in yellow.
ATI 00615, Revised: 01/11/17
Page 1 of 2
H1810.12-113-11-R0
IMPACT SOUND TRANSMISSION
ASTM E 492
Test Date
Data File No.
Client
Description
05/19/17
H1810.04
Amorim Cork Composites
3 mm (0.12") Flexco Premium Wood Vinyl Plank, 1.9 mm (0.07") AcoustiCORK® ECOx2 Sound Reduction
Underlayment for LVT Plank Flooring, 152.4 mm (6") 5000 PSI Concrete Slab, 43 mm (1.69") Armstrong
HD8906 Drywall Main Beam, 37.3 mm (1.47") Armstrong XL8945P Cross Tee, 88.9 mm (3.5") Johns Manville
Kraft Faced R-13 Fiberglass Insulation, 15.9 mm (0.63") National Gypsum Gold Bond® Fire-Shield® Type X
Specimen Area
Technician
10.98 m²
Daniel B. Mohler
100
10
90
20
80
30
70
40
60
50
50
60
40
70
30
80
20
90
10
Impact Insulation Class (IIC)
Sound Pressure Level (dB re: 20 mPa)
Impact Sound Transmission
100
Normalized Impact SPL
Contour Curve
8000
4000
2000
1000
500
250
125
110
63
0
Frequency (Hz)
ATI 00615, Revised: 01/11/17
Page 2 of 2
H1810.12-113-11-R0
Photographs
Source Room View of Test Specimen Installation
Receive Room View of Test Specimen Installation
H1810.12-113-11-R0
Drawing
1-Floor Topping
2-Underlayment
3-Concrete Slab
4-Hanger Wire
5-Insulation
6-Ceiling Grid
7-Ceiling
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