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NFRC Ballot Fall 2019Ballot: NFRC 101 Appendices A and B Ballot
Committee: Research and Technology Committee
Subcommittee: Thermophysical Properties Subcommittee
Ballot Open Date: August 9, 2019
Due Date: August 29, 2019
Ballot Description
This ballot is intended to update the source references for the material properties listed in Appendices A and B and to update the properties based on those new references. This is the second ballot of this information and is a follow up to the ballot from the Spring 2019 meeting. Changes in this ballot from the Spring 2019 ballot are highlighted in yellow for ease of reference. A new Appendix D was added to explain how the 6% moisture content was derived and why it was used. Finally, the example given in Section 4.1.4 was revised for the new conductivities in both the text of the section and in Figure 1.
Materials were added based on the task group’s decision to incorporate materials commonly used in the fenestration industry. Materials were removed based on a lack of availability or an appropriate reference. Material properties were changed based on a new and/or updated reference source.
Staff does not anticipate any additional document changes, no legal review, or additional cost for implementation. The default THERM materials library will be revised to incorporate the changed Appendices after final approval of the document.
The implementation plan suggested by the TG is for the new appendices to be used no earlier than January 1, 2020. Once implemented, the new data shall be used for all new certifications, revisions, and addenda to existing product lines. All existing product lines and products in the CPD at the time of implementation will be able to remain until the end of the certification cycle for that product line.
To submit your vote please use the NFRC Research and Technology Committee Voting sheetonline at https://nfrccommunity.site-ym.com/?page=Ballots
1.
2.
3.
4.4.1
4.1.1
4.1.2
4.1.3
4.1.4 Wood ComponentsIf a wood component’s cross-sectional material properties vary randomly along the length of the component, and the client wishes to use material property values from Appendix B, then for purposes of simulation, the cross-section shall be assigned the highest conductivity of all the materials used in that component.
For example, consider a wood frame member composed of multiple individual pieces of wood finger-jointed together along the length of the frame member. Some of the wood pieces are Sugar Pine (k=0.099 100 W/m•K), some are Ponderosa Pine (k=0.122 110 W/m•K), and some are Radiata Pine (k=0.128 120 W/m•K). The cross-section for this frame member would be assigned a conductivity of 0.128 120 W/m•K. See Figure 1.
[Note: If a product is simulated using material properties from Appendix B, then additional requirements will apply during annual inspections of Product Certification Program licensees. See NFRC 700 for details.]
10. References
10.1 StandardsANSI/NFRC 100-2010: Procedure for Determining Fenestration Product U-factors. National Fenestration Rating Council: Greenbelt, MD; 2010. www.nfrc.org
NFRC 103-2011: Verification Program for Thermophysical Property Data. National Fenestration Rating Council: Greenbelt, MD; 2011. www.nfrc.org
NFRC 300-2010: Test Method for Determining the Solar Optical Properties of Glazing Materials and Systems. National Fenestration Rating Council: Greenbelt, MD; 2010. www.nfrc.org
NFRC 600-2010: Glossary and Terminology. National Fenestration Rating Council: Greenbelt, MD; 2010. www.nfrc.org
NFRC 700-2014: Product Certification Program. National Fenestration Rating Council: Greenbelt, MD; 2010. www.nfrc.org
NFRC 701-2014: Laboratory Accreditation Program Document. National Fenestration Rating Council: Greenbelt, MD; 2011. www.nfrc.org
NFRC 702-2013: Certification Agency Program. National Fenestration Rating Council: Greenbelt, MD; 2011. www.nfrc.org
NFRC 705-2009: Component Modeling Approach – Product Certification Program. National Fenestration Rating Council: Greenbelt, MD; 2009. www.nfrc.org
NFRC 707-2010: Compliance and Monitoring Program Manual. National Fenestration Rating Council: Greenbelt, MD; 2010. www.nfrc.org
NFRC 708-2014: Calculation Entity Approval Program Document. National Fenestration Rating Council: Greenbelt, MD; 2010. www.nfrc.org
NFRC 714-2013: Challenge and Appeals Procedure. National Fenestration Rating Council: Greenbelt, MD; 2010. www.nfrc.org
ASTM C128 - 07a Standard Test Method for Density, Relative Density (Specific Gravity), and Absorption of Fine Aggregate. ASTM International, West Conshohocken, PA, 2007, DOI: 10.1520/C0128-07A.www.astm.org
ASTM C177-10: Standard Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the
Guarded-Hot-Plate Apparatus. ASTM International, West Conshohocken, PA, 2004, DOI: 10.1520/C0177-10.www.astm.org
ASTM C518-10: Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus. ASTM International, West Conshohocken, PA, 2004, DOI: 10.1520/C0518-10.www.astm.org
ASTM C1114-06: Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Thin-Heater Apparatus. ASTM International, West Conshohocken, PA, 2006, DOI: 10.1520/C1114-06.www.astm.org
ASTM C1363-11: Standard Test Method for the Thermal Performance of Building Materials and Envelope Assemblies by Means of a Hot Box Apparatus. ASTM International, West Conshohocken, PA, 2005, DOI: 10.1520/C1363-05.www.astm.org
ASTM C1371-04a(2010)e1: Standard Test Method for Determination of Emittance of Materials near Room Temperature Using Portable Emissometers. ASTM International, West Conshohocken, PA, 2003, DOI: 10.1520/C1371-04A10E01.www.astm.org
ASTM D792-08:Standard Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement. ASTM International, West Conshohocken, PA, 2008, DOI: 10.1520/D0792-08.www.astm.org
ASTM D1505-10: Standard Test Method for Density of Plastics by the Density-Gradient Technique. ASTM International, West Conshohocken, PA, 2003, DOI: 10.1520/D1505-10.www.astm.org
ASTM D2395-07ae1: Standard Test Methods for Specific Gravity of Wood and Wood-Based Materials. ASTM International, West Conshohocken, PA, 2007, DOI: 10.1520/D2395-07AE01.www.astm.org
ASTM D3359-09e2: Standard Test Methods for Measuring Adhesion by Tape Test. ASTM International, West Conshohocken, PA, 2009, DOI: 10.1520/D3359-09E02.www.astm.org
ASTM D4883-08:Standard Test Method for Density of Polyethylene by the Ultrasound Technique. ASTM International, West Conshohocken, PA, 2008, DOI: 10.1520/D4883-08.www.astm.org
ASTM E1225-09: Standard Test Method for Thermal Conductivity of Solids by Means of the Guarded-Comparative-Longitudinal Heat Flow Technique. ASTM International, West Conshohocken, PA, 2009, DOI: 10.1520/E1225-09.www.astm.org
ASTM E1461-07: Standard Test Method for Thermal Diffusivity by the Flash Method. ASTM International, West Conshohocken, PA, 2007, DOI: 10.1520/E1461-07.www.astm.org
ASTM E1530-06: Standard Test Method for Evaluating the Resistance to Thermal Transmission of Materials by the Guarded Heat Flow Meter Technique. ASTM International, West Conshohocken, PA, 2006, DOI: 10.1520/E1530-06.www.astm.org
ASTM E1933-99a (2010): Standard Test Methods for Measuring and Compensating for Emissivity Using Infrared Imaging Radiometers. ASTM
International, West Conshohocken, PA, 2005, DOI: 10.1520/E1933-99AR10.www.astm.org
ASTM E1952-06: Standard Test Method for Thermal Conductivity and Thermal Diffusivity by Modulated Temperature Differential Scanning Calorimetry. ASTM International, West Conshohocken, PA, 2006, DOI: 10.1520/E1952-06.www.astm.org
ISO 1183-1:2004:Plastics - Methods for determining the density of non-cellular plastics - Part 1: Immersion method, liquid pyknometer method and titration method. International Organization for Standardization: Geneva, Switzerland. www.iso.org
ISO 1183-2:2004: Plastics - Methods for determining the density of non-cellular plastics - Part 2: Density gradient column method. International Organization for Standardization: Geneva, Switzerland. www.iso.org
ISO 1183-3:1999 Plastics -- Methods for determining the density of non-cellular plastics -- Part 3: Gas pyrometer method. International Organization for Standardization: Geneva, Switzerland. www.iso. org
10.2 References for Table A.1 and Table B.11. BSEn 12524: Building material and products-Hygrothermal properties-
Tabulated design values, November 1999 (and B.R. Anderson, et al., Final Report of the Thermal Values Group, March 1999)
2. ASHRAE Fundamentals Handbook. American Society of Heating, Refrigerating, and Air-Conditioning Engineers: Atlanta, GA; 2017. www.ashrae.org
3. J. L. Wright and H. F. Sullivan (1989). “Thermal Resistance Measurement of Glazing System Edge-Seal and Seal Materials Using a Guarded Heater Plate Apparatus.” At. 95-2
4. FPL-GTR-190: Wood Handbook – Forest Products Laboratory (2010)
5. Curcija, D. C.; Kohler, C.; Vidanovic, D. 2012. “Thermo-Physical Properties for Glazing Cavity Gas Fills”, Revision 7, October 24, 2012. LBNL Technical Report
6. Curcija, D. C. 2011. “Emissivity of a Selection of Steel Samples”, June 2, 2011. LBNL Technical Report
7. D. F. Miner and J. B. Seastone , Handbook of Engineering Materials. Wiley and Sons: Hoboken, New Jersey; 1955.
8. F. P. Incropera and D. P. DeWitt. Fundamentals of Heat and Mass Transfer. Third Edition. Wiley and Sons: Hoboken, New Jersey; 1990.
9. Kuzman R. Handbook of Thermodynamic Tables and Charts. McGraw Hill Book Company.
10. NIST Heat Transmission Properties of Insulation and Building Materials Database
11. Carli, Inc. 2005. “Emissivity Test Report for Traco Aluminum Materials”. February 14, 2005.
12. M. Loffler and D. Buck. “Glazing Edge-Seal Using Foamglass as Spacer and Frameless Window Design.” Solar Energy. Vol. 61, No. 5, 1997; pp. 303-312.
13. A. Gustavsen and Berdahl, 2003. “Spectral Emissivity of Anodized Aluminum and the Thermal Transmittance of Aluminum Window Frames”. Nordic Journal of Building Physics Vol. 3, 2003; May, 2003
14. Chang Chun Petrochemical Co., Ltd.; Winlite PVB Film
15. PVB – Ian Weekes
16. Saflex® DG structural PVB Interlayer. Solutia
17. SentryGlass SG 5000. Dupont/Kuraray
18. ISO 10077-2:2017, “Thermal performance of windows, doors and shutters – Calculation of thermal transmittance – Part 2: Numerical method for frames
19. C. Maier, T. Calufut. Polypropylene: The Definitive User’s Guide and Databook. William Andrew Publishing/Plastics Design Library: Norwich, NY; 1998.
20. Harper CA. Modern Plastics Handbook. McGraw-Hill Professional: New York, NY; 2000.
21. BS EN ISO 10456:2007, “Building Materials and Products-Hygrothermal Properties – Tabulated design values and procedures for determining declared and design thermal values”. Standards Policy and Strategy Committee, December 2007 (European Committee for Standardization).
22. BSEn 12524: Building material and products-Hygrothermal properties-Tabulated design values, November 1999 (and B.R. Anderson, et al., Final Report of the Thermal Values Group, March 1999)
[2.] ASHRAE Fundamentals Handbook. American Society of Heating, Refrigerating, and Air-Conditioning Engineers: Atlanta, GA; 2009. www.ashrae.org
[3.] Miner DF, Seastone JB. Handbook of Engineering Materials. Wiley and Sons: Hoboken, New Jersey; 1955.
[4.] Incropera FP. Fundamentals of Heat and Mass Transfer. Sixth Edition. Wiley and Sons: Hoboken, New Jersey; 1992.
[5.] Kuzman R. Handbook of Thermodynamic Tables and Charts. Hemisphere Publishing Corp.: Bristol, PA; 1976.
[6.] Loffler M, Buck D. “Glazing edge-seal using foamglass as spacer and frameless window design.” Solar Energy. Vol. 61, No. 5, 1997; pp. 303-312.
[7.] Maier C, Calufut T. Polypropylene: The Definitive User’s Guide and Databook. William Andrew Publishing/Plastics Design Library: Norwich, NY; 1998.
[8.] Harper CA. Modern Plastics Handbook. McGraw-Hill Professional: New York, NY; 2000.
[9.] Bankvall CG. “Mechanisms of Heat Transfer in Permeable Insulation and Their Investigation in a Special Guarded Hot Plate.” ASTM Standards
and Engineering Digital Library. www.astm.org/DIGITAL_LIBRARY/STP/PAGES/STP34770S.htm
[10.] White FM. Heat and Mass Transfer. Prentice Hall: Upper Saddle River, NJ; 1988.
[11.] Kim HS, Kim C-J, Ro ST. “Heat Transfer Correlation for Natural Convection in a Meniscus-shaped Cavity and its Application to Contact Melting Process.” International Journal of Heat and Mass Transfer. July 1996; Vol. 39, Iss. 11, pp. 2267-2270.
[12.] Emissivity Values for Common Materials. Infrared Services Co. 2000.http://www.infrared-thermography.com/training.htm
[13.] Technical Note 69. Exergen Co. 2007.www.exergen.com/indust rl/irtc/technotes/technote_069.html
[14.] Lawrence Berkeley National Laboratory Technical Report, “Emissivity of a Selection of Steel Samples”, June 2, 2011. D. Charlie Curcija
[15.] Lawrence Berkeley National Laboratory Technical Report, “Thermo-Physical Properties for Glazing Cavity Gas Fills”, Revision 5, November 23, 2010. D. Charlie Curcija, Christian J. Kohler
[16.] Emissivity Test Report for Traco Aluminum Materials, Carli, Inc.-February 14,2005
[17.] Nordic Journal of Building Physics Vol. 3, 2003; Gustavsen and Berdahl. 1: Spectral Emissivity of Anodized Aluminum and the Thermal Transmittance of Aluminum Window Frames, Published May 2003
[18.] Aging of Polyurethane Foam Insulation with 3rd Generation Blowing Agents-Oak Ridge National Laboratories-published 1998 (ORNL CP-99527)
[19.] Peer review of three or more same base type materials listed in Appendix C to establish a new Appendix A or B generic material.
[20.] Conductivity of Zinc Alloys. International Zinc Association. 2014. www.zinc.org.
Table of Total Emissivity. Omega. 2014. http://www.omega.com/temperature/z/pdf/z088-089.pdf
[21.] MatWeb Material Property Data. http://www.matweb.com/search/datasheettext.aspx?matguid=abbf07b7f93a4c358a0ddd194f5c18be
23. Conductivity of Zinc Alloys. International Zinc Association. 2014. www.zinc.org.
24. Aging of Polyurethane Foam Insulation with 3rd Generation Blowing Agents, Oak Ridge National Laboratories, published 1998 (ORNL CP-99527)
25. Peer review of three or more same base type materials listed in Appendix C to establish a new Appendix A or B generic material.
26. MatWeb Material Property Data http://www.matweb.com/search/QuickText.aspx?SearchText=abs http://www.matweb.com/search/DataSheet.aspx? MatGUID=eb7a78f5948d481c9493a67f0d089646&ckck=1
Appendix A Basic Set of Generic Thermophysical Property Values of Materials
Table A.1: Thermophysical Properties of Solid Materials1
Name Conductivityk
Source2 Emissivityε
W/m•K Btu/hr•ft•F Btu•in/hr•ft2•ºF - -
RubbersElastomersButadiene 0.250 0.144 1.733 1,21 0.9
Butyl rubber (isobutene, solid/hot melt) 0.240 0.139 1.664 1, 34,8 0.9
Expanded rubber (rigid) 0.032 0.018 0.222 2 0.9
Ethylene propylene diene monomer (EPDM) 0.250 0.144 1.733 1 0.9
Foam Rubber 0.060 0.035 0.416 1 0.9
Neoprene (polychloroprene) 0.230 0.133 1.595 1 0.9
Polyisobutylene (PIB) 0.200 0.116 1.387 1,21 0.9
Polysulfphide 0.400 0.231 2.773 1,21 0.9
Polymers
PVB 0.24621 0.128142 1.536706 15617 0.9
Polyamide (PA 6.6 – 25% glass fill) 0.300 0.173 2.080 1 0.9
Polyamide (Nylon-no fill) 0.250 0.144 1.733 1 0.9
Polycarbonate 0.200 0.116 1.387 1 0.9
Polypropylene 0.220 0.127 1.525 1 0.9
Polystyrene 0.160 0.092 1.109 1 0.9
Polytetrafluoroethylene (PTFE) 0.250 0.144 1.733 1 0.9
Polyurethane 0.250 0.144 1.733 1 0.9
Polyurethane foam 0.050 0.029 0.347 1 0.9
Polyvinylchloride (PVC) flexible 0.140 0.081 0.971 1 0.9
Polyvinylchloride (PVC) /Vinyl (rigid) 0.170 0.098 1.179 4,81 0.9
Silicone 0.350 0.202 2.427 1 0.9
Silicone foam 0.170 0.098 1.179 4,8 0.9
Urethane-thermal break 0.121 0.070 0.839 130 0.9
Polyurethane (urethane) thermal break 0.210 0.121 1.456 1 0.9
Urethane/polyurethane 0.210 0.121 1.456 6, 11 0.9
Name Conductivityk
Source2 Emissivityε
W/m•K Btu/hr•ft•F Btu•in/hr•ft2•ºF - -
Composites
Fiberglass 0.300 0.173 2.080 4,89 0.9
Polyamide (PA 6.6) 0.300 0.173 2.080 1 0.9
Polyamide (Nylon-no fill) 0.250 0.144 1.733 181 0.9
Timbers3
Coniferous woods (Softwoods)1 0.140 0.081 0.971 4,84 0.9
Deciduous woods (Hardwoods)1 0.160 0.092 1.109 4,84 0.9Note: Values are for 12% moisture content. This value may be applied to products of any moisture content for the purposes of this document.
Wood based panels
Fiberboard 0.1410 0.08164 0.971763 18 0.9
Particleboard, Plywood 0.240180 0.139104 1.664248 1 0.9
Plywood 0.240 0.139 1.664 1 0.9
Metals
Aluminum alloys (mill finish) 160.000 92.446 1109.3571,4,8, 16, 17 6, 11 0.05
Aluminum alloys (anodized) 160.000 92.446 1109.3571,4,8, 16, 17 6, 11 0.8
Aluminum alloys (painted) 160.000 92.446 1109.3571,4,8, 16, 17 6, 11 0.9
Steel (plated) 50.000 28.890 346.674 1, 6, 13 0.05
Steel (painted) 50.000 28.890 346.674 1 0.9
Steel (rolled, ground) 50.000 28.890 346.674 1, 6, 13 0.1
Steel (rolled, ground, plated) 50.000 28.890 346.674 1, 6 0.2
Steel Stainless (oxidized) 17.000 9.822 117.869 1, 6 0.8
Steel Stainless (buffed) 17.000 9.822 117.869 1, 6 0.2
Steel-galvanized sheet (0.14%C) 62.0 35.823 429.876 116, 228 0.2
Steel-galvanized sheet (0.14%C) (painted) 62.0 35.823 429.876 6, 2211 0.9
1 Note: Values are for 12% moisture content. This value may be applied to products of any moisture content for the purposes of this document.
Name Conductivityk
Source2 Emissivityε
W/m•K Btu/hr•ft•F Btu•in/hr•ft2•ºF - -
Glazing Materials
Glass, Soda-Lime (Plate or Float) 1.000 0.578 6.9331, 6,
114,8,2 0.84
Glass mosaic 1.200 0.693 8.320 1 0.84
Glass-Flint (lead), Pyrex 1.400 0.809 9.707 23 0.84
Glass-Quartz 1.400 0.809 9.707 1 0.90
Acrylic Sheet (Plexiglass) (PMMA) / Lucite 0.200 0.116 1.387 18 0.90
Name Conductivity, k Source2 Emissivityε
W/m•K Btu/hr•ft•F Btu•in/hr•ft2•ºF - -
Insulating MaterialsCellulosic fiber, Cotton fiberloose fill 0.042046 0.0273 0.231977 82 0.9
Cotton fiber 0.042 0.024 0.291 25 0.9
Expanded perlite, organic bonded 0.052 0.030 0.361 2 0.9
Expanded Polystyrene-expanded (EPS) 0.038 0.022 0.2613 8,1 0.9
Extruded Ppolystyrene extruded (XPS) 0.034 0.020 0.236 1 0.9
Felt 0.050 0.029 0.347 253 0.9
Glass fiber board 0.035 0.020 0.243 25 0.9
Glass fiber (rigid) 0.047 0.027 0.326 8??? 0.9
Insulation Fiberboard 0.035500.049 0.02089 0.3424370.340 8 0.9
Mineral fiber-loose fill 0.050 0.029 0.347 8??? 0.9
Perlite 0.053 0.031 0.367 8 0.9
Polyester fiber 0.040 0.023 0.279 1 0.9
Polyurethane Foam Insulation (Spray Applied) 0.024 0.014 0.166 86, 11 0.9
Polyurethane foam, open cell 0.0350.042 0.0240 0.29143 2 0.9
Polyurethane foam, closed cell 0.03529 0.02017 0.24301 2 0.9
Rock and slag wool batts 0.0375 0.0210 0.24357 2 0.9
Urea formaldehyde foam 0.040 0.023 0.277 2 0.9
Vermiculite 0.077 0.044 0.5324 710 0.9
Miscellaneous
Foam glass 0.040 0.023 0.277 1, 129 0.9
Mohair (polyester) sweep 0.140 0.081 0.971 4,18 0.9
Silica gel (Ddesiccant)-bulk desiccant - desiccated matrix 0.290130 0.168075 2.0110.901 18 0.9
Silica gel (Ddesiccant)–loose fillmolecular sieve 0.030100 0.017058 0.208693 4,8,18 0.9Weather strip – elastomeric foam, flexible 0.050 0.029 0.347 1 0.9
Foam weather stripping 0.030 0.017 0.208 4,8 0.9
Paints N/A N/A N/A - 0.91 These values are typically included in the THERM Materials Library
2 Numbers listed in this column refer to documents listed in Section 10.2.3 Note: Values are for 6% moisture content, see Appendix D. This value may be applied to products of any moisture content for the purposes of this document.Values are for 12% moisture content. This value may be applied to products of any moisture content for the purposes of this document.
Table A.2: Thermophysical Properties of Gases (Source 5)Conductivityk = a + bT+cT2
[W/m•K]
Dynamic Viscosityμ = a + bT+cT2
[kg/m•s]Gas Coefficient
a [W/m•K]
Coefficient b
[W/m•K2]
Coefficient c
[W/m•K3]
Coefficient a
[kg/m•s]
Coefficient b
[kg/m•s•K]
Coefficient c
[kg/m•s•K2]
Air* 2.873x10-3 7.760x10-5 0 3.723x10-6 4.94x10-8 0
Argon 2.285x10-3 5.149x10-5 0 3.379x10-6 6.451x10-8 0
Krypton 9.443x10-4 2.826x10-5 0 2.213x10-6 7.777x10-8 0
Xenon 4.538x10-4 1.723x10-5 0 1.069x10-6 7.414x10-8 0
CO2 -5.8181x10-3 7.4714x10-5 0 8.5571x10-7 4.7143x10-8 0
SF6 1.300x10-2 0 0 7.214x10-7 4.928x10-8 0
Helium 4.524x10-2 3.6947x10-4 0 5.951x10-6 4.664x10-8 0
Neon 1.567x10-3 1.089x10-4 0 1.014x10-5 7.045x10-8 0
Octafluoouropropane
-1.576x10-3 1.804x10-5 9.830x10-8 -2.009x10-6 5.475x10-8 -2.054x10-11
*Note: Nitrogen shall be treated as air.
Specific HeatCp = a + bT + cT2
[J/kg•K] -
Molecular Mass
Gas Coefficient a [J/kg•K]
Coefficient b [J/kg•K2]
Coefficient c [J/kg•K3]
Mass[kg/kmol]
Air* 1.00274x103 1.2324x10-2 0 28.97
Argon 5.21929x102 0 0 39.948
Krypton 2.48091x102 0 0 83.80
Xenon 1.58340x102 0 0 131.30
CO2 5.76903x102 9.18088x10-1 0 44.01
SF6 4.1860X102 0 0 146.10
Helium 5.1965x103 0 0 4.000
Neon 1.03042x103 0 0 20.180
Octafluoouropropane 6.332x102 -3.805x10-1 3.119x10-3 188.02*Note: Nitrogen shall be treated as air.
Appendix B Extended Set of Generic Thermophysical Property Values of Materials
Table B.1: Thermophysical Properties of Solid Materials3
Name Density4 ρ
Conductivityk
Source4Sourc
e5
Emissivityε
kg/m3 W/m•K Btu/hr•ft•F Btu•in/hr•ft2•ºF
- -
RubbersElastomersHard rubber (ebonite), solid 1200 0.170 0.098 1.179 1, 21 0.9
HardNatural rubber 910 0.130 0.126075 0.874901 1, 21 0.9
Neoprene(polychloroprene) 146 0.036 0.021 0.246 710 0.9Neoprene(polychloroprene) 1290 0.237 0.137 1.643 10, 217 0.9
Vulcanized rubber, hard 1190 0.160 0.092 1.109 2 0.9
Vulcanized rubber, soft 1100 0.100 0.058 0.693 2 0.9
Polymers
ABS (extruded) 1200 0.200 0.116 1.387 26 0.9
ABS (molded) 3500 0.190 0.110 1.317 26 0.9
Acrylic 1050 0.200 0.116 1.387 1 0.9
Cellular Polyvinylchloride (cPVC) 577-705 0.067 0.039 0.462 25 0.9
Elastomeric foam, flexible 60-80 0.050 0.029 0.347 1 0.9
Epoxy resin 1200 0.200 0.116 1.387 1 0.9
Phenolic resin 1300 0.300 0.173 2.080 1 0.9
Polyacetate 1410 0.300 0.173 2.080 1 0.9
Polyester resin 1400 0.190 0.110 1.317 1 0.9
Polyethylene/polythene HD (high density) 980 0.500 0.289 3.467 1 0.9
Polyethylene/polythene LD (low density) 920 0.330 0.191 2.288 1,4 0.9
Polyethylene foam 70 0.050 0.029 0.347 1 0.9
Polymethylmethacrylate (PMMA / Plexiglass, Lucite 0.200 0.116 1.387 0.9
Polymethylmethacrylate (PMMA) 1180 0.180 0.104 1.248 1 0.9
Polypropylene 0.220 0.127 1.525 1 0.9
Name Density4 ρ
Conductivityk
Source4Sourc
e5
Emissivityε
kg/m3 W/m•K Btu/hr•ft•F Btu•in/hr•ft2•ºF
- -
Polypropylene with 25% glass fibre 1200 0.250 0.144 1.733 1 0.9
Polyurethane foam, low density, open cell 10 0.042 0.024 0.291 2 0.9
Polyurethane foam, closed cell, aged 180 days 51 0.029 0.017 0.201 2 0.9
Silicone, filled 1450 0.500 0.289 3.467 1 0.9
Timbers1
Balsa 140 0.0550.06 0.03235 0.379416 84 0.9
Birch, yellow 660 0.1680 0.104092 1.248109 4 0.9
Redwood, old growth (California) 392-448410
0.1181210 0.06894
0.818832763 24 0.9
Redwood, new growth 370 0.1100 0.06458 0.763693 4 0.9
Cedar, Atlantic white 340 0.100090 0.0582 0.69324 4 0.9
Cedar, Eastern red 480 0.140120 0.08169 0.971832 4 0.9
Cedar, Northern white 310 0.09490 0.05452 0.652624 4 0.9
Cedar, Port-Orford 430 0.120110 0.06964 0.832763 4 0.9
Cedar,s (Wwestern, red) 330247-502
0.1000903
00
.0750580520
.901693624 42 0.9Cedar, yellow 460 0.130120 0.075069 0.901832 4 0.9
Cypress (southern), bald502-
5144700
.1312002 0.0756069 0.90115832 42 0.9
Elm (soft), American 521540
0.1311501
400
.076087081
0.9091.0400.
971 54 0.9Elm, Rock 670 0.180170 0.104098 1.248179 4 0.9
Elm, Slippery 560 0.150140 0.087081 1.0400.971 4 0.9
Fir, balsam 370 0.110100 0.064058 0.763693 4 0.9
Fir, (white) 4130 0.120110 0.069064 0.832763 34 0.9Douglas-fir, coast 510 0.140130 0.081075 0.971901 4 0.9
Douglas-fir, interior north 500 0.140130 0.081075 0.971901 4 0.9
Douglas-fir, interior west 520 0.140130 0.081075 0.971901 4 0.9
Fir (Douglas) 529 0.111 0.064 0.769 5 0.9
Name Density4 ρ
Conductivityk
Source4Sourc
e5
Emissivityε
kg/m3 W/m•K Btu/hr•ft•F Btu•in/hr•ft2•ºF
- -
Hemlock, (eastern) 457420
0.1151201
10 0.06970640
.799832763 54 0.9Hemlock, Western 480 0.140120 0.081069 0.971832 4 0.9
Larch (western) 625560 0.14043 0.0821 0.9880.971 54 0.9Mahogany 550 0.130 0.075 0.901 32, 7 0.9
Maple, black 600 0.160150 0.092087 1.109040 4 0.9
Maple, red 560 0.150140 0.087081 1.0400.971 4 0.9
Maple, silver 500 0.140130 0.081075 0.971901 4 0.9
Maple, (sugar) 7206600
.1801607 0.1048092 1.24897109 34 0.9Oak, black 660 0.180160 0.104092 1.248109 4 0.9
Oak, bur 660 0.180160 0.104092 1.248109 4 0.9
Oak, Northern red 650 0.180160 0.104092 1.248109 4 0.9
Oak, Southern (red) 7216200
.1703150 0.0981087 1.17998040 54 0.9
Oak, (white)745-
750720
0.1901807
6 0.110021041
.317248218 3,54 0.9
Pine, Eastern white (sugar) 409370
0.1101000.
0990
.064580.057
0.7636930.68
9
54
0.9
Pine (white), jack 430 450
0.1301200.
110
0.0750690.06
4
0.9018320.76
3
34
0.9
Pine (Norway), loblolly 441540
0.1501400.
120
0.0870810.06
91.04
00.9710.829
54
0.9
Pine (northern white), lodgepole 481430
0.1201100.
121
0.0690640.07
0
0.8327630.83
9 45 0.90.9
Pine, longleaf (ponderosa) 489620
0.1701500.
122
0.0980870.07
1
1.1790400.84
9
54
0.9
Pine, pitch (Radiata) 504530
0.1501300.
128
0.0870750.07
41.04
00.9010.887
74
0.9Pine (longleaf), ponderosa 609420 0 0 0 45 0.90.9
Name Density4 ρ
Conductivityk
Source4Sourc
e5
Emissivityε
kg/m3 W/m•K Btu/hr•ft•F Btu•in/hr•ft2•ºF
- -
.1201100.138
.0690640.080
.8327630.958
Pine (shortleaf), Radiata 545500
0.1411161
20
0.082067069
0.978804832
54
0.9
Pine, red (southern, yellow) 659460
0.1301200.
161
0.0750690.09
3
0.9018321.11
6
24
0.9Pine, shortleaf 540 0.150140 0.087081 1.0400.971 4 0.9
Pine, slash 610 0.170150 0.098087 1.179040 4 0.9
Pine, sugar 370 0.110100 0.064058 0.763693 4 0.9
Pine, Western white 400 0.120110 0.069064 0.832763 4 0.9
Red Alder 440 0.114 0.066 0.791 7 0.9
Spruce, black 430 0.120110 0.069064 0.832763 4 0.9
Spruce, Engelmann 370 0.110100 0.064058 0.763693 4 0.9
Spruce, red 420 0.120110 0.069064 0.832763 4 0.9
Spruce, (Sitka) 425420
0.1201100.
098
0.0690640.05
7
0.8327630.67
9
54
0.9Spruce, white 370 0.110100 0.064058 0.763693 4 0.9
Note: Values are for 12% moisture content. This value may be applied to products of any moisture content for the purposes of this document.
Wood based panels
Cement-bonded particleboard 1200 0.230 0.133 1.595 1 0.9
Cement-bonded wood wool panels 500 0.100 0.058 0.693 1 0.9
Cement-bonded wood wool panels 700 0.140 0.081 0.971 1 0.9
Fibreboard (medium density, dry process) 250 0.070 0.040 0.485 1 0.9
Fibreboard (medium density, dry process) 400 0.100 0.058 0.693 1 0.9
Fibreboard (medium density, dry process) 600 0.140 0.081 0.971 1 0.9
Fiberboard Fibreboard (medium 800 0.110180 0.064104 0.7631.248 81 0.9
Name Density4 ρ
Conductivityk
Source4Sourc
e5
Emissivityε
kg/m3 W/m•K Btu/hr•ft•F Btu•in/hr•ft2•ºF
- -
density, dry process)
Oriented strand board (OSB) 650 0.130 0.075 0.901 1 0.9
Particleboard, Plywood 300 0.100 0.058 0.693 1 0.9
Particleboard, Plywood600500
0.1400.130
0.0810.075 0.9710.9011 0.9
Particleboard, Plywood 6009000.14
00.1800.0810.104 0.9711.248
1 0.9
Plywood 300 0.090 0.052 0.624 1 0.9
Plywood 500 0.130 0.075 0.901 1 0.9
Particleboard, Plywood 700 0.170 0.098 1.179 1 0.9
Particleboard, Plywood (high density) 1,000 0.240 0.139 1.664 1 0.9
Insulating Materials
Aerogel - Silica 73 0.024 0.014 0.166 10 0.9
Cellular glass 136 0.051 0.029 0.354 2 0.9
Cellulose, sprayed into open cavities 4842 0.0390.040
0.023 0.2773710 0.9
Cellulose 54 0.057 0.033 0.395 3 0.9
Cellulosic fiber 9656 0.0490.040
0.0238 0.34027712 0.9
Glass fiber, batts 8.2 0.048 0.028 0.333 2 0.9
Glass fiber, batts 12 0.043 0.025 0.298 2 0.9
Glass fiber, batts 14 0.039 0.023 0.027 2 0.9
Glass fiber (semi-rigid) Sheathing 0.034 0.020 0.236 82 0.9
Glass fiber (spray applied) 16 0.0390.042
0.0243 0.2917082 0.9
Glass wool 50-602 0.0338 0.01922 0.263229 31 0.9
Mineral fiber, -low density (rock, slag, glass) 64 0.042 0.024 0.291 82 0.9
Name Densityρ
Conductivityk
Source4 Emissivityε
kg/m3 W/m•K Btu/hr•ft•F Btu•in/hr•ft2•ºF
- -
Phenolic foam board with facing - 0.023 0.013 0.159 2 0.9
Name Densityρ
Conductivityk
Source4 Emissivityε
kg/m3 W/m•K Btu/hr•ft•F Btu•in/hr•ft2•ºF
- -
Polyisocyanurate /polyurethane-uUnfaced Boardaged 37 0.02
00.025 0.012014 0.139173 82 0.9
Polyisocyanurate /Polyurethane-foil-fFaced Sheathingaged - 0.020.023 0.0134 0.15966 82 0.9
Polystyrene expanded (EPS) 50-60 0.031 0.018 0.218 1 0.9
Polystyrene expanded (EPS) 35-45 0.032 0.019 0.223 1 0.9
Polystyrene expanded (EPS) 30 0.033 0.019 0.227 1 0.9
Polystyrene expanded (EPS) 25 0.034 0.020 0.236 1 0.9
Polystyrene expanded (EPS) 20 0.035 0.020 0.243 1 0.9
Polystyrene expanded (EPS) 10 0.043 0.025 0.300 1 0.9
Polystyrene expanded, molded beads (EPS)
16 0.037 0.021 0.257 120.9
Polystyrene expanded, molded beads (EPS)
24 0.035 0.020 0.243 120.9
Polystyrene expanded, molded beads (EPS)
3229 0.033 0.019 0.229 120.9
Mineral fiber with resin binder 0.042 0.024 0.291 2 0.9
Polyester fiber 25 0.0385 0.0220 0.2643 1 0.9
Polyester fiber 35 0.0363 0.02119 0.2530 1 0.9
Polyester fiber 45 0.0352 0.02019 0.24325 1 0.9
Silica Aerogel 73 0.024 0.014 0.166 7 0.9
Polyurethane foam, HFC 245fa blown 31 0.020 0.012 0.138 1824 0.9
Polyurethane foam, HFC 134a blown 0.023 0.013 0.159 24 0.9
Polyurethane foam, Cyclopentane blown 0.020 0.012 0.139 24 0.9
Straw thatch 240 0.070 0.040 0.485 2 0.9
Masonry Materials
Concrete – medium density 1,800 1.15 0.66 7.97 1 0.90
Concrete – high density 2,400 2.00 1.16 13.87 1 0.90
Concrete – reinforced (2% steel) 2,400 2.50 1.44 17.33 1 0.90
Brick, Fired clay – high density 2,400 1.47 0.85 10.19 2 0.90
Brick, Fired clay – medium density 1,600 0.74 0.43 5.13 2 0.90
Name Densityρ
Conductivityk
Source4 Emissivityε
kg/m3 W/m•K Btu/hr•ft•F Btu•in/hr•ft2•ºF
- -
Brick, Fired clay – low density 1,120 0.45 0.26 3.12 2 0.90
Gypsum plasterboard 900640 0.25160 0.09214 1.1173 2 0.90
1 Note: Values are for 6% moisture content, see Appendix D. This value may be applied to products of any moisture content for the purposes of this document.Note: Values are for 12% moisture content. This value may be applied to products of any moisture content for the purposes of this document.
Name Densityρ
Conductivityk
Source4Sourc
e5
Emissivityε
kg/m3 W/m•K Btu/hr•ft•F Btu•in/hr•ft2•ºF
- -
MetalsAluminum 2700 237 136.94 1643.24 8 0.9
Aluminum alloy 195 Cast (4.5Cu) 2790 168 97.07 1164.83 8 0.9
Aluminum ally 2024 T6 (4.5Cu, 1.5Mg, 0.6Mn) 2770 177 102.27 1227.23 8 0.9
Aluminum alloy 1100-O 2713 221.90 128.21 1538.54 2, 7 0.9
Aluminum alloy 3003-O 2713 163.28 943.34 1132.13 7 0.9
Aluminum alloy 5056-O 2630 117.23 67.73 812.811 7 0.9
Aluminum alloy (96%Al, 1.8%Cu, 0.9%Fe, 0.9%Cr, 0.4%Si) - 104.67 60.48 725.73 9 0.9
Aluminum Bronze (76%Cu, 22%Zn, 2%Al)
8280 100 57.78 693.35 2 0.9
Aluminum Bronze (95%Cu, 5%Al) 7800 82.6 47.73 572.71 9 0.9
Bronze 8,700 65 37.56 450 1,6 0.20
Brass 8,400 120 69.34 832 1,6 0.20
Copper 8,900 380 219.56 2634 1,6 0.80
Iron, cast 7,500 50 28.89 346 19,6 0.80
Lead 11,300 35 20.22 242.67 19 0.80
Steel (0.1%Carbon at 0°C) 7850 59 34.09 409.08 9 0.9
Steel (0.2%Carbon at 20°C) 7850 50 28.89 346.67 9 0.9
Steel (0.6%Carbon at 20°C) 7850 46.5 26.87 322.41 9 0.9
V 1 A steel 20.9 12.08 144.91 9 0.9
V 2 A steel 7860 15.1 8.73 104.70 9 0.9
Zinc Alloys (covers the following alloys as designated in each system)
(EN 12844 - ZP2, ZP3, ZP5, ZP8)
(ASTM B240/B669 - AG40A, AC41A, AC43A, ZA8)
(Unified Numbering System (UNS) - Z33520, Z35531, Z35541, Z35636)
6,700720
0
1105 66.45 797 20,21123
0.28
3These properties are not typically included in the THERM Materials Library4 Densities shown are nominal values. Densities of actual materials may vary and do not need to be verified by NFRC Certified Simulators.
Name Densityρ
Conductivityk
Source4Sourc
e5
Emissivityε
kg/m3 W/m•K Btu/hr•ft•F Btu•in/hr•ft2•ºF
- -
5 Numbers listed in this column refer to documents listed in Section 11.2.
Appendix C Thermophysical Property Values of Proprietary MaterialsTable C.1: Thermophysical Properties of Solid Materials
Participant Product Density Conductivity Emissivity Expiration Date
kg/m3 W/m•K Btu/hr•ft•F Btu•in/hr•ft2•ºF
3M™ VHB™ Structural Glazing Tapes-4972 720 0.143 0.083 0.992 - 7/1/2020
3M™ VHB™ Structural Glazing Tapes-B23F 720 0.138 0.08 0.957 - 7/1/2020
3M™ VHB™ Structural Glazing Tapes-G23F 720 0.137 0.079 0.95 - 7/1/2020
ADCO Products, Inc. PIB Based Sealant 1053 0.146 0.085 1.02 0.9 12/31/2022
Allmetal 3 mil Stainless Steel 7110 15.3 8.83 106 - 12/31/2021
Allmetal 4.5 mil Stainless Steel 7380 14.7 8.47 102 - 12/31/2021
Allmetal 6 mil Stainless Steel 7570 14.9 8.64 104 - 12/31/2021
Allmetal 8 mil Stainless Steel 7690 15.5 8.94 107 - 12/31/2021
Andersen Corporation CPA Fiberglass Material 1675 0.159 0.092 1.105 12/31/2020
Andersen Corporation Fibrex EZ+ 21.8 0.202 0.117 1.40 0.9 7/1/2021
Andersen Corporation
Andersen Extruded Polystyrene Foam 35.8 0.026 0.015 0.183 0.9 12/31/2021
Andersen Corporation
Andersen Extruded Polystyrene Foam 2 30.4 0.026 0.015 0.183 0.9 7/1/2019
Azon Azo-Core 13 204 0.032 0.018 0.218 0.9 7/1/2022
NFRC 101-2017[E2A10] Page 26
© 2013. National Fenestration Rating Council Incorporated (NFRC). All rights reserved.
Participant Product Density Conductivity Emissivity Expiration Date
kg/m3 W/m•K Btu/hr•ft•F Btu•in/hr•ft2•ºF
Azon Azo-Core 17 259 0.036 0.021 0.252 0.9 7/1/2022
Azon Urethane-thermal break ?1140 0.121 0.070 0.839 0.9 12/31/2022?
BASF Neopor F5300 Plus 19.2 0.0288 0.0166 0.200 0.9 7/1/2020
BASF Neopor F2300 18.7 0.0286 0.0165 0.198 0.9 7/1/2020
Covestro Baydur PUL-2500 2,127 0.219 0.127 1.522 - 7/1/2022
Cardinal Industries Stainless Steel 7,808 14.187 8.197 98.37 - 7/1/2021
Chelsea Building Products Composite PVC 1,698 0.292 0.169 2.023 - 7/1/2021
Chelsea Building Products PVC Adapter 702 0.092 0.053 0.639 - 7/1/2021
Colonial Metal SST 7,688 12.933 7.473 89.673 - 12/31/2021
Colonial Metal Tin Plated Steel 7,660 50.2 29.05 348.6 - 12/31/2021CW Ohio Thermoplastic Composite 607 0.062 0.036 0.433 - 7/1/2020Durango Doors, LLC DURAGEL 1220 0.281 0.162 1.950 0.9 12/31/2022
Eagle Window and Doors
Eagle Window and Doors-Eagle Composite 1,349 0.19 0.11 1.317 - 7/1/2022
Ensinger Insulbar Material 1,292 0.251 0.145 1.74 0.9 12/31/2020
Ensinger Stainless Steel Foil 7,870 13.3 7.70 92.4 - 12/31/2018
Ensinger Tecafoil LeF Low-E Foil 2193 160 92.4 1109 0.03 12/31/2021
GED Intercept Ultra Stainless Steel 7,473 13.63 7.877 94.52 - 7/1/2021
Guardian Industries Corrugated SST 7,440 13.87 8.025 96.296 0.9 7/1/2021
Inline Fiberglass Fiberglass Pultrusion Material 1624 0.227 0.131 1.574 0.9 12/31/2020
NFRC 101-2017[E2A10] Page 27
© 2013. National Fenestration Rating Council Incorporated (NFRC). All rights reserved.
Participant Product Density Conductivity Emissivity Expiration Date
kg/m3 W/m•K Btu/hr•ft•F Btu•in/hr•ft2•ºF
JELD-WEN LFI Door Skin sample-30% CaCO3 1 0.134 0.077 0.929 - 7/1/2021
JELD-WEN LFI Door Skin sample-no CaCO3 1,464 0.17 0.098 1.18 - 7/1/2021
JELD-WEN EPS Door Core Material 18.58 0.033 0.019 0.229 - 7/1/2021
JELD-WEN Fiberlast Door Skin Material 878 0.107 0.062 0.742 - 12/31/2019
JELD-WEN JELD-WEN Proprietary Composite 1371 0.219 0.126 1.52 0.9 7/1/2022
JELD-WEN Sunpro Lambdapor Premium Expanded Polystyrene 21.5 0.029 0.017 0.199 - 12/31/2019
Kalwall Insulation A 4.54 0.115 0.066 0.794 - 7/1/2021
Kalwall Insulation B 4.06 0.093 0.054 0.648 - 7/1/2021
Kalwall Insulation C 12.82 0.047 0.027 0.327 - 7/1/2021
Kalwall Insulation D 38.98 0.032 0.019 0.222 - 7/1/2021
Kalwall Insulation E 8 0.04 0.023 0.277 0.9 7/1/2021
Leading Edge EdgeStar Stainless 7,720 13.467 7.781 93.37 - 7/1/2022
Leading Edge ThinStar Steel 7,147 51.6 29.8 358 - 12/31/2022
Major Industries Translucent Thermal Insulation 15 6.94 0.079 0.046 0.549 0.9 7/1/2021
Major Industries Translucent Thermal Insulation 24 4.31 0.098 0.057 0.68 0.9 7/1/2021
Major Industries Ultimate Series FRP 1,236 0.143 0.083 0.993 0.9 7/1/2021
Major Industries 10 Light Transmitting Insulation 9.58 0.07 0.041 0.487 - 7/1/2021
Major Industries IMG 125 Light Transmitting 6.92 (@ 0.037 0.021 0.258 - 7/1/2021
NFRC 101-2017[E2A10] Page 28
© 2013. National Fenestration Rating Council Incorporated (NFRC). All rights reserved.
Participant Product Density Conductivity Emissivity Expiration Date
kg/m3 W/m•K Btu/hr•ft•F Btu•in/hr•ft2•ºF
Insulation 1.25“)
Marvin Windows & Doors ULTREX 1603 0.152 0.088 1.06 - 7/1/2019
MCNS Polyurethanes
Injected Polyurethane Foam – Supercore® 220 Series 27.4 0.016 0.0094 0.112 0.9 12/31/2018
Midwest Manufacturing
Elastopor® P15860R RESIN/ELASTOPOR® P1001U ISOCYANATE RIGID POLYURETHANE FOAM
25.63 0.022 0.013 0.154 - 7/1/2019
Midwest Manufacturing
Elastocool® P18731/P1001U Iso RIGID URETHANE FOAM 19.22 0.017 0.01 0.12 - 7/1/2019
Milgard Mfg. Plywood/Pheonolic Material 575 0.102 0.059 0.704 0.9 7/1/2019
Milgard Mfg. Pheonolic Material 1258 0.173 0.100 1.197 0.9 7/1/2019
Nan Ya Plastics Neuma Door-Foam PVC 999 0.082 0.048 0.57 - 7/1/2022
Nan Ya Plastics Neuma Door-Phenolic Foam 740 0.029 0.017 0.201 - 7/1/2022
NOMACO NomaTherm 100 Extruded Polystyrene Foam
49.2 0.032 0.018 0.220 0.9 12/31/2018
NOMACO NomaTherm 200 Extruded Polystyrene Foam
33.5 0.029 0.017 0.201 0.9 7/1/2019
Pella Windows and Doors Duracast (Unpainted) 1,808.43 0.166 0.096 1.152 0.9 7/1/2021
Plastpro Cellular PVC by JM Eagle 597 0.067 0.039 0.462 - 7/1/2022
Plastpro PF Frame by JM Eagle 698 0.084 0.049 0.583 - 7/1/2022
Ply Gem Windows G-Force Wood Plastic Composite Reinforcement 970 0.100 0.058 0.696 0.9 12/31/2018
NFRC 101-2017[E2A10] Page 29
© 2013. National Fenestration Rating Council Incorporated (NFRC). All rights reserved.
Participant Product Density Conductivity Emissivity Expiration Date
kg/m3 W/m•K Btu/hr•ft•F Btu•in/hr•ft2•ºF
Prasad Plastics Limited
Polyamide 6.625% Glass Fibre 1193 0.172 0.099 1.19 0.9 7/1/2022
Profine GmbH Kömmerling/ TROCAL/ KBE
PremiDoor 88 Lift/Slide Door Threshold (Profine Profile 9S79)
1346 0.143 0.082 0.989 0.9 7/1/2019
Quanex Building Products
Super Spacer Silicone Foam Spacer, S1 866 0.178 0.103 1.23 - 12/31/2020
Quanex Building Products Super Spacer S2 Premium 634 0.125 0.072 0.868 - 12/31/2020
Quanex Building Products
Super Spacer S2 Premium Plus 648 0.127 0.073 0.877 - 12/31/2020
Quanex Building Products
Super Spacer Standard (EPDM ) 793 0.179 0.103 1.24 - 12/31/2020
Quanex Building Products Super Spacer TriSeal 686 0.141 0.082 0.980 - 12/31/2020
Quanex Building Products Super Spacer T-Spacer 767 0.13 0.075 0.899 - 12/31/2018
Quanex Building Products Butyl 761-71X 1210 0.177 0.102 1.23 0.9 12/31/2021
Quanex Building Products
EnergyCore Fusion Insulated System 134 0.032 0.019 0.225 - 12/31/2021
Quanex Building Products
XTD Composite 493 0.052 0.030 0.362 - 12/31/2021
Reynaers Aluminium NV
Nomatec XPE Foam Insulation 34.4 0.036 0.021 0.252 - 7/1/2019
Royal/Kömmerling Kodispace 4SG 1191.74 0.241 0.139 1.67 - 7/1/2020
NFRC 101-2017[E2A10] Page 30
© 2013. National Fenestration Rating Council Incorporated (NFRC). All rights reserved.
Participant Product Density Conductivity Emissivity Expiration Date
kg/m3 W/m•K Btu/hr•ft•F Btu•in/hr•ft2•ºF
Royal/Kömmerling PIB-8 HSNB Gray 1,060 0.155 0.089 1.073 - 7/1/2021
Royal Moldings Cellular PVC 635 0.066 0.038 0.456 - 7/1/2017
SaftiFirst Fire Resistant Inner Layer 1160 0.307 0.178 2.13 0.9 7/1/2021
Saint Gobain SAN 35% Glass Fiber 1216 0.142 0.082 0.986 - 12/31/2018
Schuco USA Polypropylene Foam 32.7 0.031 0.018 0.218 - 12/31/2018
Schuco USA Polythermid 1027 0.185 0.107 1.28 - 7/1/2019
Schuco USA Polyutherm 1050 0.193 0.112 1.34 - 7/1/2019
Sun Windows Weyerhaeuser Moisture Shield Composite Sill 1053 0.181 0.104 1.25 - 7/1/2020
Technoform Glass Insulation NA, Inc.
TGI NA Spacer M Stainless Steel 7710 14.0 8.09 97.1 0.2 7/1/2021
Tremco EnerEDGE Silicone Warm-Edge Spacer, non-white 657 0.118 0.068 0.817 - 12/31/2021
Tremco EnerEDGE Silicone Warm-Edge Spacer, white 1094 0.194 0.112 1.346 - 7/1/2022
Viracon ExtremEdge Stainless Steel 7610 14.3 8.26 99.1 - 12/31/2021
Viracon ExtremEdge Polymer 77.4 0.180 0.104 1.25 - 12/31/2021Viracon VTS Thermal Plastic Spacer 1142 0.196 0.113 1.36 12/31/2021WFI Global U Core Extrusion Fill Foam 39.5 0.029 0.017 0.202 - 7/1/2021
WFI Global U Core Plus Extrusion Fill Foam 40.5 0.029 0.017 0.203 - 7/1/2021
Zola Windows V1 Foam Insulation 538 0.071 0.041 0.489 - 12/31/2020Zola Windows V2 Foam Insulation 205 0.039 0.023 0.270 - 12/31/2020
NFRC 101-2017[E2A10] Page 31
© 2013. National Fenestration Rating Council Incorporated (NFRC). All rights reserved.
APPENDIX D Moisture Content of Wood
In this edition of NFRC 101 the moisture content for wood species in Tables A.1 and B.1 has been changed from 12% to 6%. During the update of all the data in Tables A.1 and B.1, a working group was formed to review the conductivity of wood species. The working group used the US Department of Agriculture’s Wood Handbook (FPL-GTR-190) as the reference for the thermal conductivities of wood species.
During the review of the Wood Handbook it was observed that the wood thermal conductivity data has a variation of as much as ±20%. The work group reviewed all the data and determined that the thermal conductivity for 6% moisture content with an error band of ±20% has a range the same or greater than the values from 0% to 12%. The workgroup then recommended that the thermal conductivity for all wood species in Tables A.1 and B.1 be based on 6% moisture content. The thermal conductivity for wood species in Tables A.1 and B.1 will then be used for wood of any moisture content.
The resulting thermal conductivities for all wood species in Tables A.1 and B.1 have been determined at 6% moisture content based on the Wood Handbook.
NFRC 101-2017[E2A10] Page 26
© 2013. National Fenestration Rating Council Incorporated (NFRC). All rights reserved.
