AAMA THERMAL PERFORMANCE TEST REPORT. Rendered to: TUBELITE, INC.

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1 Architectural Testing AAMA THERMAL PERFORMANCE TEST REPORT Rendered to: TUBELITE, INC. SERIES/MODEL: 300ES Curtainwall (8" System) TYPE: Glazed Wall Systems (Site-built) Summary of Results Thermal Transmittance (U-Factor) 0.32 Condensation Resistance Factor - Frame (CRF f ) 81 Condensation Resistance Factor - Glass (CRF g ) 73 Unit Size: Layer 1: Gap 1: 1/4" 0.53" 78-3/4" x 78-3/4" PPG Solarban 70XL (e=0.018*, #2) ZF-D: Super Spacer Premium 90% Argon* Layer 2: 1/4" PPG Sungate 500 (e=0.215*, #3) Reference must be made to Report No., dated 10/16/13 for complete test specimen description and data. 130 Derry Court York, PA phone: fax:

2 Architectural Testing AAMA THERMAL PERFORMANCE TEST REPORT Rendered to: TUBELITE, INC Mackinaw Trail Reed City, Michigan Report Number: Test Date: Report Date: 10/03/13 10/16/13 Test Sample Identification: Series/Model: 300ES Curtainwall (8" System) Type: Glazed Wall Systems (Site-built) Test Sample Submitted by: Client Test Procedure: The condensation resistance factor (CRF) and thermal transmittance (U) were determined in accordance with AAMA , Voluntary Test Method for Thermal Transmittance and Condensation Resistance of Windows, Doors and Glazed Wall Sections 1. Average warm side ambient temperature 2. Average cold side ambient temperature mph dynamic wind applied to test specimen exterior " +0.04" static pressure drop across specimen. Test Results Summary: F F Condensation resistance factor - Frame (CRF f ) 81 Condensation resistance factor - Glass (CRF g ) 73 Thermal transmittance due to conduction (U) 0.32 (U-factors expressed in Btu/hr ft 2 F) 130 Derry Court York, PA phone: fax:

3 Architectural Testing Page 2 of 9 Test Sample Description: Frame: Material: AT (1.20"): Aluminum with Thermal Breaks - All Members Size: 78-3/4" x 78-3/4" Daylight Opening: 36" x 74-1/2" (x2) Glazing Method: Interior Exterior Color: Gray Exterior Finish: Anodized Interior Color: Gray Interior Finish: Anodized Corner Joinery: Square Cut / Screws / Sealed Glazing Information: Layer 1: 1/4" PPG Solarban 70XL (e=0.018*, #2) Gap 1: 0.53" ZF-D: Super Spacer Premium Layer 2: 1/4" PPG Sungate 500 (e=0.215*, #3) Gas Fill Method: Single-Probe Method* Desiccant: Yes 90% Argon* *Stated per Client/Manufacturer N/A Non-Applicable

4 Architectural Testing Page 3 of 9 Test Sample Description: (Continued) Weatherstripping: Description EPDM glazing gasket Quantity 1 row Location Exterior glazing perimeter EPDM glazing gasket 1 row Interior glazing perimeter Hardware: Description (1.00" x 0.75") Wood block Quantity 6 Location Two per head and sill, one per jamb Aluminum stop 4 Two per interior head and sill Aluminum filler 3 Jambs and center mullion Drainage: Drainage Method Size Quantity Location Diameter weephole 0.25" 4 Exterior corners of glass lite

5 Architectural Testing Page 4 of 9 Test Duration: 1. The environmental systems were started at 07:03 hours, 10/03/ The thermal performance test results were derived from 10:03 hours, 10/03/13 to 14:03 hours, 10/03/13. Condensation Resistance Factor (CRF): The following information, condensed from the test data, was used to determine the condensation resistance factor: T h T c FT p FT r W FT GT CRF g CRF f = Warm side ambient air temperature F = Cold side ambient air temperature F = Average of pre-specified frame temperatures (14) F = Average of roving thermocouples (4) F = = [(FT p - FT r ) / (FT p - (T c + 10))] x 0.40 FT p (1-W) + W (FT r ) = Frame Temperature F = Glass Temperature F = Condensation resistance factor Glass CRF g = (GT - T c ) / (T h - T c ) x = Condensation resistance factor Frame 81 CRF f = (FT - T c ) / (T h - T c ) x 100 The CRF number was determined to be 73 (on the size as reported). When reviewing this test data, it should be noted that the glass temperature (GT) was colder than the frame temperature (FT) therefore controlling the CRF number. Refer to the 'CRF Report' page and the 'Thermocouple Location Diagram' page of this report.

6 Architectural Testing Page 5 of 9 Thermal Transmittance (U c ): T h = Average warm side ambient temperature F T c = Average cold side ambient temperature F P = Static pressure difference across test specimen 0.00 psf 15 mph dynamic perpendicular wind at exterior Nominal sample area ft 2 Total measured input to calorimeter Btu/hr Calorimeter correction Btu/hr Net specimen heat loss Btu/hr U = Thermal Transmittance 0.32 Btu/hr ft 2 F Glazing Deflection: Edge Gap Width Estimated center gap width upon receipt of specimen in laboratory (after stabilization) Center gap width at laboratory ambient conditions on day of testing Center gap width at test conditions Left Glazing 0.53" 0.50" 0.50" 0.41" Right Glazing 0.53" 0.50" 0.50" 0.41" The sample was inspected for the formation of frost or condensation, which may influence the surface temperature measurements. The sample showed no evidence of condensation/frost at the conclusion of the test. Prior to testing the specimen was sealed with silicone on the interior side and checked for air infiltration per Section Required annual calibrations for the Architectural Testing Inc. 'thermal test chamber' (ICN ) in York, Pennsylvania were last conducted in May 2013 in accordance with Architectural Testing Inc. calibration procedure. A CTS Calibration verification was performed June A Metering Box Wall Transducer and Surround Panel Flanking Loss Characterization was performed September 2013.

7 Architectural Testing Page 6 of 9 CRF Report Time: 13:03 13:33 14:03 # # AVERAGE Pre-specified Thermocouples - Frame FT P Pre-specified Thermocouples - Glass GT Cold Point (Roving) Thermocouples FT R W FT Warm Side - Room Ambient Air Temperature Cold Side - Room Ambient Air Temperature CRF f CRF g

8 Architectural Testing Page 7 of 9 Thermocouple Location Diagram SELECT DRAWING, DRAG HERE, AND IDENTIFY COLD POINTS Cold Point Locations

for the entire test record retention period. The test record retention end date for this report is October 03, 2017.

9 Architectural Testing Page 8 of 9 Architectural Testing, Inc. will service this report for the entire test record retention period. Test records that are retained such as detailed drawings, datasheets, representative samples of test specimens, or other pertinent project documentation will be retained by Architectural Testing, Inc. for the entire test record retention period. The test record retention end date for this report is October 03, 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 may not be reproduced, except in full, without the written approval of Architectural Testing, Inc. For ARCHITECTURAL TESTING, INC. Ryan P. Moser Technician Shon W. Einsig Senior Technician Individual-In-Responsible-Charge RPM:kls Attachments (pages): This report is complete only when all attachments listed are included. Appendix-A: Drawings (9) Architectural Testing, Inc. is accredited by the International Accreditation Service (IAS) under the specific test methods listed under lab code TL-144, in accordance with the recognized International Standard ISO/IEC 17025:2005. The laboratory s accreditation or test report in no way constitutes or implies product certification, approval, or endorsement by IAS.

10 Architectural Testing Page 9 of 9 Revision Log Rev. # Date Page(s) Revision(s).01R0 10/16/13 All Original Report Issue. Work requested by Greg Hall of Tubelite, Inc. This report produced from controlled document template ATI 00025(c), revised 03/14/2013.

11 Appendix A: Drawings

AAMA THERMAL PERFORMANCE TEST REPORT. Rendered to: GAMCO CORPORATION. SERIES/MODEL: Curtain Wall TYPE: Glazed Wall Systems (Site-built)

AAMA THERMAL PERFORMANCE TEST REPORT. Rendered to: GAMCO CORPORATION. SERIES/MODEL: Curtain Wall TYPE: Glazed Wall Systems (Site-built) AAMA 1503-09 THERMAL PERFORMANCE TEST REPORT Rendered to: GAMCO CORPORATION SERIES/MODEL: Curtain Wall TYPE: Glazed Wall Systems (Site-built) Summary of Results Thermal Transmittance (U-Factor) 0.47 Condensation