MGM INDUSTRIES, INC. Report No: NCTL-110-13834-1S NFRC THERMAL TEST SUMMARY REPORT Expiration Date: 07/14/15 Test Specimen NFRC Code Manufacturer: MGM Industries, Inc. Series/Model: “8017” Window Type: Double Hung VSDH Frame Composition: Vinyl VY Sash/Vent/Panel Composition: Vinyl VY Thermal Break Mat'l: Not Applicable Overall Size: 1200.15 mm (47-1/4”) wide by 1498.6 mm (59”) high Glazing Description 3/4” Overall w/Low E and Argon No. of Glazing Layers (including films): 2 2 Primary Glazing: Double Glazed DG Spacer Type: Coated U-Shaped Steel CU-D Gap Fill 1: Argon/Air (95% Double Probe) ARG Gap Fill 2: Not Applicable Glass/Film Thicknesses (ext to int): 0.090”, 0.090” Air Gap 1: 0.570” Air Gap 2: Not Applicable Secondary Glazing: Not Applicable Low Emissivity Coatings: Surface 3: 0.022 Procedure: Standardized Thermal Transmittance (Ust) was determined using the NFRC 102-2010 procedure with a temperature of 69.8°± 0.5°F on the room side of the specimen and -0.4°± 0.5°F on the weather side of specimen. The net air leakage across the test specimen was 0.0 cfm. Test Results: Results of the test period 2012-2212 on 07/14/11 using the Equivalent CTS Method: Thermal transmittance at test conditions (Us): 0.29 BTU/hr/ft2/°F Standardized thermal transmittance of test specimen (Ust): 0.28 BTU/hr/ft2/°F Reference should be made to Thermal Performance Test Report Number NCTL-110-13834-1for complete specimen description and test data. NATIONAL CERTIFIED TESTING LABORATORIES

STEVEN H. COBLE Simulator In Responsible Charge

THERMAL PERFORMANCE TEST REPORT Report No: NCTL-110-13834-1 Test Date: 07/14/11 Report Date: 07/27/11 Expiration Date: 07/14/15 Client: MGM Industries, Inc. 287 Freehill Road Hendersonville, TN 37075 Test Specimen: MGM Industries, Inc.'s Series “8017” Tilt Double Hung Vinyl Prime Window with Low E and Argon. Test Method: NFRC 102-2010 “Procedure for Measuring the Steady-State Thermal Transmittance of Fenestration Systems” (2010 edition)".

TEST SPECIMEN DESCRIPTION MODEL/TYPE: “8017”

CONFIGURATION: Double Hung

FRAME SIZE: 1200.15 mm (47-1/4”) wide by 1498.60 mm (59”) high

TOP SASH SIZE: 1123.95 mm (44-1/4”) wide by 723.9 mm (28-1/2”) high BOTTOM SASH SIZE: 1150.94 mm (45-5/16”) wide by 730.25 mm (28-3/4”) high

FRAME & SASH TYPE: Extruded vinyl

JOINT CONSTRUCTION: FRAME: HEAD/JAMB: Mitered, welded SILL/JAMB: (3) Screw butt-type with closed cell foam pad SASH: (1) Screw butt-type with closed cell foam pad

GLAZING COMPONENTS: OVERALL: 19.05 mm (0.750”) nominal

GLASS THICKNESS: (2) Lites of 2.29 mm (0.090”) nominal annealed

COATING: A Cardinal “366” sputter-type low emissivity coating (e=0.022 per client) was applied to glazing surface no. 3

SPACER TYPE/SIZE: Coated U-Shaped Steel (CU-D) 14.48 mm (0.570”) FILL: Argon - 95% double probe per client

GLAZING SYSTEM: Channel glazed with dual durometer vinyl triple glazing fins

MGM Industries, Inc. 2 of 5 NCTL-110-13834-1

WEATHERSTRIP: TYPE: (1) Strip center fin SIZE: 6.35 mm (0.250”) high LOCATION: Head

TYPE: (2) Strips center fin SIZE: 4.83 mm (0.190”) high LOCATION: Interior meeting rail

TYPE: (2) Strips center fin SIZE: 6.35 mm (0.250”) high LOCATION: Stiles

TYPE: (1) Strip center fin SIZE: 5.33 mm (0.210”) high LOCATION: Exterior face of stiles

TYPE: (1) Strip of vinyl foam bulb with single leaf LOCATION: Bottom rail

TYPE: (1) Open cell foam block 44.45 mm (1.75”) x 12.7 mm (0.5”) x 12.7 mm (0.5”)

LOCATION: Ends of sill

OPERATING HARDWARE: LOCKS TYPE: Metal cam-type LOCATION: 177.8 mm (7”) from each end of the interior meeting rail

KEEPER TYPE: Metal LOCATION: Exterior meeting rail at the lock positions BALANCE & PIVOT BAR BALANCE (1) Block and tackle LOCATION: Each interior and exterior jamb track

PIVOT BAR TYPE: (1) Die-cast T-shaped LOCATION: Each end of the exterior meeting rail and bottom rail

AUXILIARY: TYPE: Plastic spring loaded tilt latch with thumb actuator LOCATION: Ends of the top rail and interior meeting rail

TYPE: Rigid vinyl sash stop LOCATION: Top of each interior jamb track and at the bottom of each exterior jamb track

and (2) at exterior head track

TYPE: Rigid vinyl track cover with vertical head leg LOCATION: Interior head track

TYPE: Rigid vinyl end cap LOCATION: Ends of sill and sill nose

TYPE: Extruded aluminum nail fin LOCATION: Sill

TYPE: Sill adapter with vertical sill leg LOCATION: Sill

MGM Industries, Inc. 3 of 5 NCTL-110-13834-1

REINFORCEMENT: No reinforcement employed

WEEP HOLES: SIZE: 6.35 mm (0.25”) wide by 3.18 mm (0.125”) high LOCATION: 7.95 mm (0.313”) from each end of sill nose

SIZE: (2) 4.78 mm (0.188”) diameter LOCATION: 19.05 mm (0.75”) from each end of the exterior meeting rail

SIZE: 4.78 mm (0.188”) diameter LOCATION: 19.05 mm (0.75”) from each end of the bottom rail

SIZE: 9.53 mm (0.325”) wide by 1.60 mm (0.063”) LOCATION: 22.23 mm (0.875”) from each end of the bottom rail

INTERIOR & EXTERIOR FINISH: White vinyl (PVC)

SEALANT: LOCATION: Sill end caps and sill nail fin MATERIAL: Silicone Sealant

SPECIMEN PREPARATION PRIOR TO TEST

The test specimen was pre-conditioned at ambient laboratory conditions prior to the test. The surround panel-to-specimen interfaces were sealed with a non-reflective tape. The specimen was sealed on the interior with a caulk sealant resulting in a measured net air leakage of 0.0 cfm per square foot. TEST PARAMETERS

Tests to determine the Standardized Thermal Transmittance (Ust) of the specimen were performed in the guarded hot box apparatus located at the York, PA facility. The most recent calibration of the hot box apparatus was in February 16, 2011. The thermal performance evaluations were completed in accordance with the NFRC 102 procedure using a dynamic wind perpendicular to the specimen on the weather side and simulated natural convection on the room side. A zero static pressure differential (0.00" ± 0.04" H2O) was maintained across the specimen during the test by pressurizing the metering box on the room side. Data was collected over two successive 2 hour periods after 4 hours of steady state conditions as defined in section 6.1.2 of the NFRC 102 procedure were achieved. The test was considered completed when the data of the successive 2 hour periods also satisfied the criteria defined in section 6.1.2 of the NFRC 102 procedure. GLASS THICKNESS AND GLAZING DEFLECTION:

Glass Thicknesses

Glazing Deflection Before Test

Glazing Deflection After Test

Top Sash 0.090”, 0.090” 0.14” 0.13” Bottom Sash 0.090”, 0.090” 0.17” 0.18”

PROJECTED FRAME DIMENSIONS OF MEMBERS:

Member: Bottom Jamb Head Meeting Rail Sill Top Jamb Dimension: 2” 3.5” 1.75” 4.5” 0

TEST DURATION: The test chamber environmental systems were initiated at 0923 on 07/14/11. The test conditions were considered stable for two consecutive two hour test periods from 0812-2012 and 2012-2212 on 07/14/11. The thermal performance test results were derived from the 2012-2212 test period.

MGM Industries, Inc. 4 of 5 NCTL-110-13834-1

Areas:

Test Specimen Projected Area (As): 19.36 ft²

Test Specimen Interior Exposed (Wetted) Surface Area (Aint): 0 ft²

Test Specimen Exterior Exposed (Wetted) Surface Area (Aext): 0 ft²

Metering Box Opening Area (Amb): 54.39 ft²

Metering Box Baffle Area (Ab1): 46.44 ft²

Surround Panel Interior Exposed Area (Asp): 28.48 ft²

Exposed Area of Mods to Surround Panel Opening: 6.55 ft²

Test Conditions:

Average Room Side Air Temperature: 69.9 °F Average Weather Side Air Temperature: -0.3 °F Average Guard Box Air Temperature: 70.4 °F Average Warm Side Surround Panel Temperature: 66.2 °F Average Cold Side Surround Panel Temperature: -0.0 °F Metering Box Average Relative Humidity: 24 % Measured Weather Side Wind Velocity: 14.3 mph Static Pressure Difference Across Specimen (assumed): 0.0 H20

Heat Flows:

Heat Input Rate to Metering Box (Qtotal): 493.4 BTU/hr Surround Panel Heat Flow (Qsp): 87.8 BTU/hr Surround Panel Thickness: 5.375 Inches Surround Panel Conductance: 0.04659 BTU/hr/ft²/°F Metering Box Heat Flow (Qmb): -21.6 BTU/hr Flanking Loss Heat Flow (Qfl): 37.7 BTU/hr Net Test Specimen Heat Flow (Qs): 391.2 BTU/hr EMF vs Heat Flow Equation: y=-8018.4 * EMF + 5.6157

Test Results & Calculated Test Data:

Emittance of Glass (e1): 0.84 Warm Side Baffle Emittance (eb1): 0.96 Equivalent Room Side Surface Temperature: 55.4 ºF Equivalent Weather Side Surface Temperature: 3.5 ºF Room Side Baffle Surface Temperature: 68.6 ºF Measured Room Side Surface Conductance (hh): 1.39 BTU/hr/ft²/°F Measured Weather Side Surface Conductance (hc): 5.29 BTU/hr/ft²/°F Test Specimen Thermal Conductance (Cs): 0.39 BTU/hr/ft²/°F Convection Coefficient (K): 0.346 Radiative Test Specimen Heat Flow (Qr1): 201.5 BTU/hr Convective Test Specimen Heat Flow (Qc1): 189.8 BTU/hr Radiative Heat Flux of Test Specimen (qr1): 10.41 BTU/hr/ft² Convective Heat Flux of Test Specimen (qc1): 9.80 BTU/hr/ft² Standardized Room Side Surface Conductance (hSTh): 1.21 BTU/hr/ft²/°F Standardized Weather Side Surface Conductance (hSTc): 5.28 BTU/hr/ft²/°F Test Specimen Thermal Transmittance (Us): 0.29 BTU/hr/ft²/°F Test Specimen Standardized Thermal Transmittance (UST): 0.28 BTU/hr/ft²/°F

MGM Industries, Inc. 5 of 5 NCTL-110-13834-1

This test method does not include procedures to determine the heat flow due to either air movement through the specimen or solar radiation effects. As a consequence, the thermal transmittance results obtained do not reflect performances which may be expected from field installations due to not accounting for solar radiation, air leakage effects, and the thermal bridge effects that may occur due to the specific design and construction of the fenestration system opening. Therefore, it should be recognized that the thermal transmittance results obtained from this test method are for ideal laboratory conditions and should only be used for fenestration product comparisons and as input to thermal performance analyses which also include solar, air leakage, and thermal bridge effects. An estimate of the experimental uncertainty for these results is available upon request. Per the client, the test specimen described in this report was a production line unit submitted for initial certification and plant qualification and is described ‘as tested’. Detailed drawings were available for laboratory records and compared to the test specimen at the time of this report. A copy of this report along with representative sections of the test specimen will be retained by NCTL for a period of four (4) years. The results obtained apply only to the specimen tested. This report may not be reproduced, except in full, without the written approval of National Certified Testing Laboratories. NCTL is a testing lab accredited by IAS to ISO/IEC 17025 and assumes that all information provided by the client is accurate and does not guarantee or warranty any product tested or installed. Testing described in this report was conducted in full compliance with NFRC requirements; any deviations are noted. ASTM C 1363 and C 1199 testing was performed with published NFRC deviations. Ratings included in this report are for submittal to an NFRC licensed IA for certification purposes and are not meant to be used for labeling purposes. Only those values identified on a valid Certification Authorization Report (CAR) are to be used for labeling purposes. NATIONAL CERTIFIED TESTING LABORATORIES

STEVEN H. COBLE Simulator In Responsible Charge

ROBERT H. ZEIDERS, P.E. Vice-President Engineering & Quality Person-in-Responsible Charge JL/hl

ATTACHMENT 1

Section 1: Component Drawings, with Applicable Part Numbers, Manufacturing and Modeling Details, were Reviewed (as submitted)

for Product Verification (Reference: NCTL-110-13834-1)

See Attached Documentation; any deviations noted.

Note: The above referenced component drawings along with representative sections of the test specimen will be retained per procedure by NCTL. This testing facility assumes that all information provided by the client is accurate.

Section 2: Identification Date Page & Revision Original Issue 07/27/11 Not Applicable