Architectural Testing was contracted by ThermaCote, Inc. to evaluate the air permeance of their ThermaCote® air barrier coating. Architectural Testing tested five samples of Dens-glass coated with ThermaCote® air barrier coating and one uncoated sample according to ASTM E 2178. The average air permeance of the coated samples was 0.000004 L/Pa·m2·s at 25 Pa increasing to 0.000006 L/Pa·m2·s at 300 Pa, meeting the standard for air barrier materials. The uncoated sample had significantly higher air permeance.

1. Architectural Testing
PERFORMANCE TEST REPORT
Rendered to:
THERMACOTE, INC.
PRODUCT: ThermaCote® Air Barrier Coating
Report No: B0780.01-106-31
Report Date: 08/08/11
Expiration Date: 07/15/15
130 Derry Court
York, PA 17406-8405
phone: 717-764-7700
fax: 717-764-4129
www.archtest.com

2. Architectural Testing
PERFORMANCE TEST REPORT
Rendered to:
THERMACOTE, INC.
1369 Herrington Road
Lawrenceville, Georgia 30044
Report No: B0780.01-106-31
Test Dates: 07/11/11
Through: 07/15/11
Report Date: 08/08/11
Expiration Date: 07/15/15
Product: ThermaCote® Air Barrier Coating
Project Summary: Architectural Testing, Inc. was contracted by ThermaCote, Inc. to evaluate
the air permeance of their ThermaCote® air barrier coating. The product description, test
procedure and test results are reported herein. The average results from testing are presented in
the chart below.
ASTM E 2178 - Air Permeance
Parameter Test Results
Calculated Air Permeance at 25 Pa 0.000004 L/Pa·m2·s
Calculated Air Permeance at 50 Pa 0.000004 L/Pa·m2·s
Calculated Air Permeance at 75 Pa 0.000005 L/Pa·m2·s
Calculated Air Permeance at 100 Pa 0.000005 L/Pa·m2·s
Calculated Air Permeance at 150 Pa 0.000006 L/Pa·m2·s
Calculated Air Permeance at 300 Pa 0.000006 L/Pa·m2·s
Test Method: The test specimens were evaluated in conformance with the following method
without deviation.
ASTM E 2178-03, Standard Test Method for Air Permeance of Building Materials.
Product Description: ThermaCote provided to Architectural Testing five nominal 48" x 48" x
1/2" (122 cm x 122 cm x 1.3 cm) ThermaCote® air barrier coated Dens-glass sections and one
nominal 48" x 48" x 1/2" (122 cm x 122 cm x 1.3 cm) uncoated Dens-glass section. The
ThermaCote® air barrier was applied at a 40 mil wet thickness and dried to a 30 to 35 mil dry
thickness. It is white in color and has a nominal basis weight of 5 lbs/gal. The sections were
tested as-received with the exception of cutting the sections to 42.5" x 42.5" (108 cm x 108 cm).
130 Derry Court
York, PA 17406-8405
phone: 717-764-7700
fax: 717-764-4129
www.archtest.com

3. B0780.01-106-31
Architectural Testing Page 2 of 4
Test Procedure and Test Results: The results are reported in the following tables. All
specimen conditioning and test conditions were at standard laboratory conditions.
ASTM E 2178 - Air Permeance
Each test specimen was placed coating side up (exterior) on top of the test chamber (ICN
004933) and then sealed to the test chamber utilizing duct tape and 4 mil thick polyethylene
sheeting. The resulting test area was 1 meter x 1 meter (39.3" x 39.3").
The test specimen was then tested at preset air pressures ranging from 25 Pa to 300 Pa. Upon
completion of the cycle, the polyethylene sheet was sliced and peeled away from the test
specimen's surface. The test specimen was tested again at preset air pressures ranging from 25
Pa to 300 Pa. Refer to the photos in Appendix A. The actual pressure and flow values are
presented in Appendix B, and the air permeance graph appears in Appendix C.
ThermaCote® Air Barrier Coated Dens-glass
Air Measured Flow Rate, L/(s·m2)
Pressure, Test Specimen
Pa 1 2 3 4 5
25 0.00011 0.00019 0.00020 0.00005 0.00018
50 0.00024 0.00006 0.00023 0.00017 0.00026
75 0.00064 0.00046 0.00020 0.00042 0.00013
100 0.00056 0.00090 0.00031 0.00038 0.00026
150 0.00084 0.00149 0.00136 0.00063 0.00106
300 0.00207 0.00241 0.00281 0.00192 0.00170
ThermaCote® Air Barrier Coated Dens-glass
Air Pressure, Calculated Flow Rate, Calculated Air Permeance,
Pa L/(s·m2) L/(Pa·m2·s)
25 0.0001 0.000004
50 0.0002 0.000004
75 0.0004 0.000005
100 0.0005 0.000005
150 0.0008 0.000006
300 0.0019 0.000006

4. B0780.01-106-31
Architectural Testing Page 3 of 4
Test Procedure and Test Results: (Continued)
Dens-glass (One Specimen)
Air Pressure, Calculated Flow Rate, Calculated Air Permeance,
Pa L/(s·m2) L/(Pa·m2·s)
25 0.0027 0.000106
50 0.0055 0.000111
75 0.0085 0.000114
100 0.0116 0.000116
150 0.0179 0.000119
300 0.0374 0.000125
Data sheets, representative samples of test specimens, a copy of this report, or other pertinent
project documentation will be retained by Architectural Testing, Inc. for a period of four years
from the original test date. At the end of this retention period such materials shall be discarded
without notice and the service life of this report by Architectural Testing will expire. Results
obtained are tested values and were secured by using the designed test methods. 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 specimens tested.
This report may not be reproduced, except in full, without the written approval of Architectural
Testing, Inc.
For ARCHITECTURAL TESTING, INC.:
Dawn M. Chaney - Senior Technician Gary Hartman, P.E. - Director
Components / Materials Testing Components / Materials Testing
DMC:dmc/nlb
Attachments (pages) This report is complete only when all attachments listed are included.
Appendix A - Photographs (1)
Appendix B - ASTM E 2178 Test Specimen Actual Pressure and Flow Values (3)
Appendix C - ASTM E 2178 Air Permeance Graph (1)

5. B0780.01-106-31
Architectural Testing Page 4 of 4
Revision Log
Rev. # Date Page(s) Revision(s)
0 08/08/11 N/A Original report issue.
This report produced from controlled document template ATI 00231, revised 03/06/07.

6. B0780.01-106-31
Architectural Testing
APPENDIX A
Photographs

7. B0780.01-106-31
Architectural Testing
Photo No. 1
ASTM E 2178 Air Permeance
Tare in Progress
Photo No. 2
ASTM E 2178 Air Permeance
Test Specimen Testing in Progress

8. B0780.01-106-31
Architectural Testing
APPENDIX B
ASTM E 2178 Test Specimen Actual Pressure and Flow Values

9. B0780.01-106-31
Architectural Testing
Test Specimen 1 - ThermaCote® Air Barrier Coated Dens-glass
Target Pressure, Actual Pressure, Actual Flow,
Date/Time
Pa Pa L/s
Tare (Leakage)
07/12/2011 10:45 25 24.92455 0.00029
07/12/2011 10:56 50 50.10990 0.00062
07/12/2011 11:11 75 75.16397 0.00071
07/12/2011 11:19 100 99.88657 0.00114
07/12/2011 11:26 150 150.24756 0.00157
07/12/2011 11:32 300 300.77225 0.00306
Test
07/12/2011 12:00 25 25.00184 0.00040
07/12/2011 12:08 50 50.22964 0.00086
07/12/2011 12:15 75 75.19346 0.00135
07/12/2011 12:20 100 99.80757 0.00170
07/12/2011 12:26 150 150.19123 0.00241
07/12/2011 12:31 300 300.83413 0.00513
Test Specimen 2 - ThermaCote® Air Barrier Coated Dens-glass
Target Pressure, Actual Pressure, Actual Flow,
Date/Time
Pa Pa L/s
Tare (Leakage)
07/14/2011 16:29 25 24.95045 0.00052
07/14/2011 16:41 50 50.09985 0.00081
07/14/2011 16:53 75 75.32018 0.00104
07/14/2011 17:00 100 100.31703 0.00140
07/14/2011 17:07 150 150.33978 0.00208
07/14/2011 17:13 300 300.94031 0.00446
Test
07/14/2011 17:43 25 24.89140 0.00071
07/14/2011 17:56 50 50.21873 0.00087
07/14/2011 18:08 75 75.31141 0.00150
07/14/2011 18:15 100 99.66525 0.00230
07/14/2011 18:20 150 150.20947 0.00357
07/14/2011 18:25 300 301.25547 0.00687

10. B0780.01-106-31
Architectural Testing
Test Specimen 3 - ThermaCote® Air Barrier Coated Dens-glass
Target Pressure, Actual Pressure, Actual Flow,
Date/Time
Pa Pa L/s
Tare (Leakage)
07/13/2011 15:20 25 24.96613 0.00059
07/13/2011 16:30 50 50.11638 0.00099
07/13/2011 16:37 75 74.69483 0.00180
07/13/2011 16:44 100 100.08071 0.00239
07/13/2011 16:54 150 150.10729 0.00276
07/13/2011 17:00 300 300.66027 0.00559
Test
07/13/2011 17:27 25 24.87580 0.00079
07/13/2011 17:40 50 50.23313 0.00122
07/13/2011 17:48 75 75.08199 0.00200
07/13/2011 17:55 100 99.89595 0.00270
07/13/2011 18:00 150 150.29750 0.00412
07/13/2011 18:06 300 301.06125 0.00840
Test Specimen 4 - ThermaCote® Air Barrier Coated Dens-glass
Target Pressure, Actual Pressure, Actual Flow,
Date/Time
Pa Pa L/s
Tare (Leakage)
07/14/2011 9:32 25 25.08723 0.00049
07/14/2011 9:41 50 49.95190 0.00098
07/14/2011 9:56 75 75.15843 0.00109
07/14/2011 10:06 100 99.70693 0.00157
07/14/2011 10:13 150 150.10712 0.00220
07/14/2011 10:19 300 300.11211 0.00428
Test
07/14/2011 10:42 25 24.93511 0.00054
07/14/2011 10:58 50 50.17297 0.00115
07/14/2011 11:06 75 75.34601 0.00151
07/14/2011 11:11 100 100.23488 0.00195
07/14/2011 11:18 150 150.30560 0.00283
07/14/2011 11:23 300 299.90749 0.00620

11. B0780.01-106-31
Architectural Testing
Test Specimen 5 - ThermaCote® Air Barrier Coated Dens-glass
Target Pressure, Actual Pressure, Actual Flow,
Date/Time
Pa Pa L/s
Tare (Leakage)
07/14/2011 13:42 25 24.94185 0.00031
07/14/2011 13:49 50 50.11502 0.00083
07/14/2011 13:56 75 75.35206 0.00134
07/14/2011 14:01 100 100.05182 0.00178
07/14/2011 14:08 150 150.16388 0.00233
07/14/2011 14:13 300 300.96597 0.00468
Test
07/14/2011 14:35 25 24.96247 0.00049
07/14/2011 14:41 50 50.09218 0.00109
07/14/2011 14:48 75 74.70821 0.00147
07/14/2011 14:55 100 99.88947 0.00204
07/14/2011 15:02 150 149.43003 0.00339
07/14/2011 15:07 300 301.07761 0.00638
Dens-glass
Target Pressure, Actual Pressure, Actual Flow,
Date/Time
Pa Pa L/s
Tare (Leakage)
07/11/2011 10:47 25 25.02477 0.00029
07/11/2011 10:55 50 50.18558 0.00065
07/11/2011 11:03 75 74.96898 0.00129
07/11/2011 11:09 100 100.15596 0.00168
07/11/2011 11:14 150 150.48943 0.00243
07/11/2011 11:20 300 300.61331 0.00512
Test
07/11/2011 11:33 25 25.30250 0.00290
07/11/2011 11:45 50 50.11604 0.00654
07/11/2011 11:54 75 74.72474 0.00962
07/11/2011 12:03 100 99.71980 0.01285
07/11/2011 12:18 150 150.28932 0.02123
07/11/2011 12:25 300 299.80326 0.04159

12. B0780.01-106-31
Architectural Testing
APPENDIX C
ASTM E 2178 Air Permeance Graph

13. Air Permeance Test Results
Product Name: ThermaCote Air Barrier Thickness: Test Start: 7/12/2011 10:45:56 AM
Product Type: Air Barrier Weight: Test Complete: 7/14/2011 6:56:19 PM
Description: Sample Area (m2): 1
3
Min Max % Difference
Target Calculated Calculated Air Measured Measured Measured To
Pressure Flow Rate Permeance Flow Rate Flow Rate Calculated
(pa) (L/s) (L/Pa-m2-s) (L/s) (L/s) (Min-Max)
2.5
25.00 0.0001 0.000004 0.0001 0.0002 -48.45% +106.19%
50.00 0.0002 0.000004 0.0001 0.0003 -73.20% +16.12%
75.00 0.0004 0.000005 0.0001 0.0006 -64.41% +75.22%
2 100.00 0.0005 0.000005 0.0003 0.0009 -49.70% +74.13%
Flow Rate (L/s), *0.001
150.00 0.0008 0.000006 0.0006 0.0015 -25.28% +76.72%
300.00 0.0019 0.000006 0.0017 0.0028 -12.65% +44.38%
Q = CA(DP)n
1.5 Q = 0.0000020*1.00(DP)1.2068778
r2 = 0.7838328
1
Sample #338 Measured Rate
Sample #341 Measured Rate
Sample #342 Measured Rate
0.5 Sample #343 Measured Rate
Sample #344 Measured Rate
Calculated Flow Rate
0
0 50 100 150 200 250 300 350
Target Pressure (pa)
Printed: July 15, 2011 8:05AM Architectural Testing Page: 1 of 3

14. B0780.01-106-31
Error Analysis: In compliance with Section 9.4 an error analysis shall be performed that includes an examination
of the sources of error, an evaluation of systematic errors and propagation of error, and the resulting value of error
on air flow values through the material tested. Regression analysis yielded a lower correlation than the method
allows. The primary contributing factor is believed to be the test specimens themselves. The substrate and the
coating application method may result in samples which are non-homogenous.