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COMPARATIVE U-FACTOR, SHGC & VT STUDY OF FIXED WINDOW WITH AND WITHOUT THE “MAGNETITE ACRYL IC PANEL SYSTEM”
FOR MAGNETITE CANADA
IN ACCORDANCE WITH: CAN/CSA A440.2-14
Report to: Magnetite Canada 8481 Keele unit 18 Concord, ON L7B 0E4 Attention: Mr. Andre Zupancic Telephone: 416.565.0500 Email: [email protected] Report No.: 17-06-M0031-1 7 Pages, 1 Appendix
Proposal No.: 16-006-462652 RV1 Date: March 29, 2017
Comparative U-Factor, SHGC & VT Study Page 2 of 7 For Magnetite Canada Report No. 17-06-M0031-1
1.0 INTRODUCTION At the request of Magnetite Canada, Exova was retained to conduct a U-factor, Solar Heat Gain Coefficient (SHGC) and Visible Transmittance (VT) thermal modeling comparison study in accordance with CSA A440.2-14. The comparison study was conducted on an aluminum fixed window with and without “Magnetite Acrylic Panel System” using various insulated glass units (IGU’s) configurations as outlined in proposal number 17-006-480400. Magnetite Canada System Description: The Magnetite Canada window system consist of two layers of 3 mm thick clear acrylic panels. The primary acrylic sheet sits within a rigid closed-cell foam board with a painted galvanized steel plate sealed to the foam board with a double-sided foam tape. The secondary acrylic sheet sits within a rigid extruded PVC frame with a perimeter magnetic strip to adhere to the foam board. The magnetite system is installed on the interior side of a window frame. The simulations outlined in this report were conducted in accordance with CSA A440.2-014 (Fenestration Energy Performance) standard. CSA A440.2-14 standard is the Canada’s nationally recognized standard used for the evaluation of fenestration products and is referenced in the following codes:
• 2015 National Energy Code of Canada – Division B – Part 3 – Building Envelope: Section 3.1.1.5 • 2015 National Building Code of Canada – Division B – Part 9 – Housing and Small Buildings:
Section 9.7.3.3 • 2006 Ontario Building Code Supplementary Standard SB-12 – Energy Efficiency for Housing
(January 1, 2012 Update): Section 2.1.1.8(2)(a)
The comparative study outlined in this report was conducted on a fixed window with and without the presence of the “Magnetite acrylic panel system” using various insulated glass units (IGU’s) configurations. As the acrylic glazing used in the “Magnetite acrylic panel system” was not located in the certified International Glazing Database (IGDB), spectral measurements (between 300 – 2500 µm, T, RF, RB) and emissivities were acquired by Professor Michael Collins of The University of Waterloo using a CARY 500 spectrometer and Gier Dunkel DB-100. Upon acquiring the spectral measurements and surface emissivities, the raw data results for the acrylic layers were sent to Exova to for review/formatting and characterization within the Optics 5 software program. The glazing layer analysis for the acrylic panel was exported from Optics 5 and imported into the Window 6.3 software program. Each glazing layer was positioned within the prescribed convectional IGU configuration and the results were calculated using the “ANSI-NFRC 100-2014” boundary conditions at a tilt angle of 90° in accordance with ANSI N-FRC 100-2014, 200-2014 standards (standards referenced by CSA A440.2-14 standard). Representative Window Unit Details: The thermal comparative evaluation of “Magnetite acrylic panel system” was conducted on a representative fixed aluminium window with and without “Magnetite acrylic panel system”. Exova Simulation No.: 17-06-M0031-1 Window Type: Fixed Series Model: Dummy Fixed Window Simulation Window Size: 1200 mm (wide) x 1500 mm (high) Simulation CR Cavity Height: 1400 mm Frame Material / Finish: AT (Aluminium) Sash Material / Finish: N/A Reinforcement Material: No Reinforcements Operator Type: FIXD
Comparative U-Factor, SHGC & VT Study Page 3 of 7 For Magnetite Canada Report No. 17-06-M0031-1
Simulation Glazing Options Outline: For the purposes of this study, the following IGU configurations were considered:
Configuration #1: 3 mm Generic Clear Glass / 16.2 mm Air Gap / 3 mm Generic Clear Glass
Configuration #2: 3 mm Generic Clear Glass / 16.2 mm Argon Gas Gap / 3 mm Generic Clear Glass
Configuration #3: 3 mm Generic Clear Glass / 16.2 mm Air Gap / 3 mm Cardinal LoE180 [3]
Configuration #4: 3 mm Generic Clear Glass / 16.2 mm Argon Gap / 3 mm Cardinal LoE180 [3]
Configuration #5: 3 mm Generic Clear Glass / 16.2 mm Air Gap / 3 mm Generic Clear Glass / 66 mm Air Gap / Magnetite Acrylic Panel / 29 mm Air Gap / Magnetite Acrylic Panel
Configuration #6: 3 mm Generic Clear Glass / 16.2 mm Argon Gas Gap / 3 mm Generic Clear Glass / 66 mm Air Gap / Magnetite Acrylic Panel / 29 mm Air Gap / Magnetite Acrylic Panel
Configuration #7: 3 mm Generic Clear Glass / 16.2 mm Air Gap / 3 mm 3 mm Cardinal LoE180 [3] / 66 mm Air Gap / Magnetite Acrylic Panel / 29 mm Air Gap / Magnetite Acrylic Panel
Configuration #8: 3 mm Generic Clear Glass / 16.2 mm Argon Gas Gap / 3 mm 3 mm Cardinal LoE180 [3] / 66 mm Air Gap / Magnetite Acrylic Panel / 29 mm Air Gap / Magnetite Acrylic Panel
Note: Square brackets, [#], denote surface layer of coating Glazing Layers Created in Optics5: Yes. The Magnetite Acrylic Panel was created (NFRC 303 & 304) Gas Fill and Method: Gas Fill (Glazing Option 1&3): 100 % Air Gas Fill (Glazing Option 2&4): 90 % Argon / 10% Gas Fill (Glazing Option 5&7): 100 % Air (used between IGU and acrylic panel) Gas Fill (Glazing Option 6&8): 90 % Argon / 10% Air (between IGU) & 100 % Air (between acrylic panel) Spacer Type for Glazing Options: Quanex Super Spacer, S2 Dimension (WxH): 0.639” x 0.1880” Type: ZF-D (Silicon foam spacer system- dual sealed) Primary Sealant: Bytul Hot Melt Desiccant: No Grid Options (Using NFRC Standard Grid Pattern): Grid options were not considered
Glazing Method: Laid in dry glazed with interior glazing stop and exterior double-sided foam glazing tape.
Weatherstripping Configuration:
Type: Quantity Installed: Location: Frame: N/A Sash: N/A Note: Assembly detatil drawings for the above simulationed window unit as provided by the manufacturer
have been included in Appendix A.
Comparative U-Factor, SHGC & VT Study Page 4 of 7 For Magnetite Canada Report No. 17-06-M0031-1
2.0 PROCEDURE
The Building Performance Centre at Exova evaluated the above window in accordance with the procedures outlined in CSA A440.2-14 referencing: ANSI/NFRC 100-2014 - Procedure for Determining Fenestration Product U-factors ANSI/NFRC 200-2014 - Procedure for Determining Fenestration Product Solar Heat Gain Coefficient and
Visible Transmittance at Normal Incidence Software Employed:
• International Glazing Database Version: 32.0 • Frame and Edge Modelling Software: Therm Version: 6.3.46 • Glazing Layers Created: Optics Version: 5.1 (Maintenance Pack 2) • Centre of Glass Calculation Software: Window Version: 6.3.74 • Total Window Unit Calculation Software: Window Version: 6.3.74
Simulation Notes:
• Simulation Date: March 22, 2017 • Continuous Hardware Modelled: No • Any model additions and removals: “Magnetite acrylic panel system” added when applicable. • The solar absorptance of dividers and frames is 0.3 for SHGC calculation, unless otherwise
stated. • The exterior boundary condition used unless otherwise stated was NFRC 100-2010. • Grouping Details of Products: No • The thermal conductivity of all “glass” glazing layers was assumed to be 1.000 W/m-K. However, the
3 mm thick acrylic panel was modelled using a thermal conductivity of 0.200 W/m-K as per NFRC 101-2014, Plexiglas (PMMA) / Lucite.
• The average hemispheric emittance was measured to be 0.86 as used for both sides of the acrylic surface when modelled.
• For the calculation of ER (Energy Rating), the “fixed” air leakage value of 0.2 L/s·m2 as outlined in NAFS – AAMA/WDMA/CSA/I.S.2/A440-08, Table 9 was used for comparative purposes.
Comparative U-Factor, SHGC & VT Study Page 5 of 7 For Magnetite Canada Report No. 17-06-M0031-1
3.0 RESULTS
Table 1 – Summary of Centre-of-Glass Results (Only)
IGU Configuration
No. of Layers
Overall Thickness
(mm)
Glazing 1 Thickness
(mm)
Glazing 2 Thickness
(mm)
Acrylic Panel 3 & 4 Thickness
(mm)
Keff (W/m-K)
U-Value (W/m2-K)
SHGC Visible
Transmission
1 2 22.23 3.0 3.0 - 0.086 2.74 0.76 0.88
2 2 22.23 3.0 3.0 - 0.078 2.61 0.76 0.88
3 2 22.23 3.0 3.0 - 0.043 1.79 0.68 0.78
4 2 22.23 3.0 3.0 - 0.034 1.53 0.68 0.78
5 4 123.45 3.0 3.0 3.0 0.191 1.24 0.59 0.67
6 4 123.45 3.0 3.0 3.0 0.186 1.21 0.59 0.68
7 4 123.45 3.0 3.0 3.0 0.139 0.96 0.55 0.63
8 4 123.45 3.0 3.0 3.0 0.125 0.88 0.56 0.64
IGU Configuration Lenged:
Configuration #1: 3 mm Generic Clear Glass / 16.2 mm Air Gap / 3 mm Generic Clear Glass
Configuration #2: 3 mm Generic Clear Glass / 16.2 mm Argon Gas Gap / 3 mm Generic Clear Glass
Configuration #3: 3 mm Generic Clear Glass / 16.2 mm Air Gap / 3 mm Cardinal LoE180 [3]
Configuration #4: 3 mm Generic Clear Glass / 16.2 mm Argon Gap / 3 mm Cardinal LoE180 [3]
Configuration #5: 3 mm Generic Clear Glass / 16.2 mm Air Gap / 3 mm Generic Clear Glass / 66 mm Air Gap / Magnetite Acrylic Panel / 29 mm Air Gap / Magnetite Acrylic Panel
Configuration #6: 3 mm Generic Clear Glass / 16.2 mm Argon Gas Gap / 3 mm Generic Clear Glass / 66 mm Air Gap / Magnetite Acrylic Panel / 29 mm Air Gap / Magnetite Acrylic Panel
Configuration #7: 3 mm Generic Clear Glass / 16.2 mm Air Gap / 3 mm 3 mm Cardinal LoE180 [3] / 66 mm Air Gap / Magnetite Acrylic Panel / 29 mm Air Gap / Magnetite Acrylic Panel
Configuration #8: 3 mm Generic Clear Glass / 16.2 mm Argon Gas Gap / 3 mm 3 mm Cardinal LoE180 [3] / 66 mm Air Gap / Magnetite Acrylic Panel / 29 mm Air Gap / Magnetite Acrylic Panel
Comparative U-Factor, SHGC & VT Study Page 6 of 7 For Magnetite Canada Report No. 17-06-M0031-1
TABLE 2 – COMPARISON SUMMARY THE ALUNIMUM FIXED WIN DOW UNIT WITH AND WITHOUT THE “MAGNETITE ACRYLIC PANEL SYSTEM”:
Comparative U-Factor, SHGC & VT Study Page 7 of 7 For Magnetite Canada Report No. 17-06-M0031-1
4.0 CONCLUSION Based on the results shown in Tables 1 & 2, the “Magnetite Acrylic Panel System” when used in conjuction with the conventional fixed window configuration as desribed, significantly reduced the thermal conductivity. The summaized comparative thermal performance results are shown below in Table 3:
Table 3 – Summarized Thermal Performance Results
Configuration Number
Specimen Description
U- Value
Without Magnetite System With Magnetite System
SI Units (W/m²-K)
British Units (°F. ft2.h/BTU)
SI Units (W/m²-K)
British Units (°F. ft2.h/BTU)
1 3 mm Clear / 16.2 mm Air / 3 mm Clear 2.88 0.51 1.28 0.23
2 3 mm Clear / 16.2 mm Argon / 3 mm Clear 2.76 0.49 1.25 0.22
3 3 mm Clear / 16.2 mm Air / 3 mm LoE180 2.05 0.361 1.03 0.182
4 3 mm Clear / 16.2 mm Argon / 3 mm LoE180 1.83 0.322 0.961 0.169
* SI units were the primary units of measure / calculation. Conversion: 1 BTU/h.ft2.°F = 5.678 W/m2.K
5.0 TERMS AND CONDITIONS This report is related only to the fenestration product simulated and shall not be reproduced, except in full, without the approval of Exova Canada Inc. This report is not indented as a comprehensive evaluation of the system regarding performance and application to specific buildings and/or configurations. The values stated in this reported were rounded as per the CSA A440.2-14 unit and measurement requirements.
6.0 REPORT REVISION SUMMARY Revision No: Date: Description of Revisions: Original 2017-March -29 Report Issued Reported by: Reviewed & Authorized by:
This report and service are covered under Exova Canada Inc’s. Standard Terms and Conditions of Contract which may be found on our company’s website www.exova.com, or by calling 1-866-263-9268
Comparative U-Factor, SHGC & VT Study Appendix A for Window Insulators Ltd. Report No. 14-06-M0236-3
APPENDIX A
Simulation Profile Detail for Dummy Fixed Window (Without and With Magnetite acrylic panel system System)
(1 Page)
Comparative U-Factor, SHGC & VT Study Appendix A For Magnetite Canada Report No. 17-06-M0031-1, Page 1 of 2
