Insulation (list of insulation material)

R-values per inch given in SI and imperial units. In practice, the values for the materials will have been obtained using different methods. Typical values are approximations based on the average of available figures. Clicking on the RSI column sorts by median value of the range. Clicking on the R-value column sorts by lowest value.
Material RSI per inch (m2·K/(W·in)) R-value per inch (ft2·°F·h/(BTU·in)) RSI per metre (m·K/W)
Vacuum insulated panel 5.28–8.8R-30–R-50208–346
Silica aerogel 1.76R-1069
Polyurethane rigid panel (CFC/HCFC expanded) initial 1.23–1.41R-7–R-848–56
Polyurethane rigid panel (CFC/HCFC expanded) aged 5–10 years 1.10R-6.2543
Polyurethane rigid panel (pentane expanded) initial 1.20R-6.847
Polyurethane rigid panel (pentane expanded) aged 5–10 years 0.97R-5.538
Foil faced Polyurethane rigid panel (pentane expanded) 1.1–1.245-48 [1]
Foil-faced polyisocyanurate rigid panel (pentane expanded ) initial 1.20R-6.855 [1]
Foil-faced polyisocyanurate rigid panel (pentane expanded) aged 5–10 years 0.97R-5.538
Polyisocyanurate spray foam 0.76–1.46R-4.3–R-8.330–57
Closed-cell polyurethane spray foam 0.97–1.14R-5.5–R-6.538–45
Phenolic spray foam 0.85–1.23R-4.8–R-733–48
Thinsulate clothing insulation[2] 0.28-0.51R-1.6–R-2.911–20
Urea-formaldehyde panels 0.88–1.06R-5–R-635–42
Urea foam[3] 0.92R-5.2536.4
Extruded expanded polystyrene (XPS) high-density 0.88–0.95R-5–R-5.426-40[1]
Polystyrene board[3] 0.88R-5.0035
Phenolic rigid panel 0.70–0.88R-4–R-528–35
Urea-formaldehyde foam 0.70–0.81R-4–R-4.628–32
High-density fiberglass batts 0.63–0.88R-3.6–R-525–35
Extruded expanded polystyrene (XPS) low-density 0.63–0.82R-3.6–R-4.725–32
Icynene loose-fill (pour fill)[4] 0.70R-428
Molded expanded polystyrene (EPS) high-density 0.70R-4.2 22-32[1]
Home Foam[5] 0.69R-3.927.0
Rice hulls[6] 0.50R-3.024
Fiberglass batts[7] 0.55–0.76R-3.1–R-4.322–30
Cotton batts (Blue Jean insulation)[8][9] 0.65R-3.726
Molded expanded polystyrene (EPS) low-density 0.65R-3.8526
Icynene spray[4][10] 0.63R-3.625
Open-cell polyurethane spray foam 0.63R-3.625
Cardboard 0.52–0.7R-3–R-420–28
Rock and slag wool batts 0.52–0.68R-3–R-3.8520–27
Cellulose loose-fill[11] 0.52–0.67R-3–R-3.820–26
Cellulose wet-spray[11] 0.52–0.67R-3–R-3.820–26
Rock and slag wool loose-fill[12] 0.44–0.65R-2.5–R-3.717–26
Fiberglass loose-fill[12] 0.44–0.65R-2.5–R-3.717–26
Polyethylene foam 0.52R-320
Cementitious foam 0.35–0.69R-2–R-3.914–27
Perlite loose-fill 0.48R-2.719
Wood panels, such as sheathing 0.44R-2.517 (9[13])
Fiberglass rigid panel 0.44R-2.517
Vermiculite loose-fill 0.38–0.42R-2.13–R-2.415–17
Vermiculite[14] 0.38R-2.1316-17[1]
Straw bale[15] 0.26R-1.4516-22[1]
Papercrete[16] R-2.6-R-3.218-22
Softwood (most)[17] 0.25R-1.417.7 [13]
Wood chips and other loose-fill wood products 0.18R-17.1
Aerated/Cellular Concrete (5% moisture) 0.18R-17.1
Snow 0.18R-17.1
Hardwood (most)[17] 0.12R-0.715.5 [13]
Brick 0.030R-0.21.3-1.8[13]
Glass[3] 0.025R-0.140.98
Poured concrete[3] 0.014R-0.080.43-0.87 [13]

References

  1. 1 2 3 4 5 6 Energy Saving Trust. "CE71 - Insulation materials chart – thermal properties and environmental ratings". Energysavingtrust.org.uk. Retrieved 2014-02-23.
  2. ↑ http://www.indapac.com/docs/3M_Thin_TypeG.pdf
  3. 1 2 3 4 Ristinen, Robert A., and Jack J. Kraushaar. Energy and the Environment. 2nd ed. Hoboken, NJ: John Wiley & Sons, Inc., 2006.
  4. 1 2 "The Icynene Insulation System". June 12, 2008. Archived from the original on June 12, 2008. Retrieved August 9, 2009.
  5. ↑ "Elastochem Specialty Chemicals | Foams: Spray Foam Insulation, Injection Foam and Pour in Place Foam". Elastochem-ca.com. Retrieved 2014-02-23.
  6. ↑ "Rice hulls in construction - Appropedia: The sustainability wiki". Appropedia. 2013-02-23. Retrieved 2014-02-23.
  7. ↑ "Products | Johns Manville Insulation". Jminsulation.com.au. Retrieved 2014-02-23.
  8. ↑ Greendepot. "UltraTouch Recycled Cotton Insulation".
  9. ↑ "What is Green Living?". Archived from the original on September 29, 2008. Retrieved May 8, 2009.
  10. ↑ ICYNENE Inc. "Icynene’s Product Portfolio".
  11. 1 2 "ICC Legacy Report ER-2833 - Cocoon Thermal and Sound Insulation Products". ICC Evaluation Services, Inc. Retrieved 2014-02-23.
  12. 1 2 "Buildings Energy Data Book". Buildingsdatabook.eren.doe.gov. Retrieved 2014-02-23.
  13. 1 2 3 4 5 Brian Anderson (2006). "Conventions for U-value calculations" (PDF). Bre.co.uk. Retrieved 2014-02-23.
  14. ↑ [[5:54:59 μμ] http://www.coloradoenergy.org/procorner/stuff/r-values.htm] Archived July 27, 2013, at the Wayback Machine.
  15. ↑ "R-Value of Straw Bales Lower Than Previously Reported - EBN: 7:9". Buildinggreen.com. September 1, 1998. Retrieved 2018-10-03.
  16. ↑
  17. 1 2 "Home Design & Remodeling | Department of Energy". Energysavers.gov. Retrieved 2014-02-23.
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