List of insulation materials
This is a list of insulation materials used around the world.
Table note: RSI-values and R-values for various materials and structures are noted. Typical values are approximations based on the average of available figures. The last column gives RSI-values normalised to a 1 metre (3 ft 3 in) thickness. Clicking on the RSI-value column sorts by median value of the range and clicking on the R-value column sorts by lowest value.
| Material | Thickness cm (in) | RSI-value (m2·K/W) | R-value (ft2·°F·h/BTU) | RSI-value (m2·K/W) (per metre) |
|---|---|---|---|---|
| Vacuum insulated panel | 2.54 (1) | 5.28–8.8 | 14–66[1] | 208–346 |
| Silica aerogel | 2.54 (1) | 1.76 | 10.3[2] | 69 |
| Polyurethane rigid panel (CFC/HCFC expanded) initial | 2.54 (1) | 1.23–1.41 | 7–8 | 48–56 |
| Polyurethane rigid panel (CFC/HCFC expanded) aged 5–10 years | 2.54 (1) | 1.10 | 6.25 | 43 |
| Polyurethane rigid panel (pentane expanded) initial | 2.54 (1) | 1.20 | 6.8 | 47 |
| Polyurethane rigid panel (pentane expanded) aged 5–10 years | 2.54 (1) | 0.97 | 5.5 | 38 |
| Foil faced Polyurethane rigid panel (pentane expanded) | 2.54 (1) | 1.1–1.2 | 45–48 [3] | |
| Foil-faced polyisocyanurate rigid panel (pentane expanded) initial | 2.54 (1) | 1.20 | 6.8 | 55 [3] |
| Foil-faced polyisocyanurate rigid panel (pentane expanded) aged 5–10 years | 2.54 (1) | 0.97 | 5.5 | 38 |
| Polyisocyanurate spray foam | 2.54 (1) | 0.76–1.46 | 4.3–8.3 | 30–57 |
| Closed-cell polyurethane spray foam | 2.54 (1) | 0.97–1.14 | 5.5–6.5 | 38–45 |
| Phenolic spray foam | 2.54 (1) | 0.85–1.23 | 4.8–7 | 33–48 |
| Thinsulate clothing insulation[4] | 2.54 (1) | 0.28–0.51 | 1.6–2.9 | 11–20 |
| Urea-formaldehyde panels | 2.54 (1) | 0.88–1.06 | 5–6 | 35–42 |
| Drywall[5] | 2.54 (1) | 0.15 | .9 | 6.2 |
| Urea foam[6] | 2.54 (1) | 0.92 | 5.25 | 36.4 |
| Extruded expanded polystyrene (XPS) high-density | 2.54 (1) | 0.88–0.95 | 5–5.4 | 26–40[3] |
| Polystyrene board[6] | 2.54 (1) | 0.88 | 5.00 | 35 |
| Phenolic rigid panel | 2.54 (1) | 0.70–0.88 | 4–5 | 28–35 |
| Urea-formaldehyde foam | 2.54 (1) | 0.70–0.81 | 4–4.6 | 28–32 |
| High-density fiberglass batts | 2.54 (1) | 0.63–0.88 | 3.6–5 | 25–35 |
| Extruded expanded polystyrene (XPS) low-density | 2.54 (1) | 0.63–0.82 | 3.6–4.7 | 25–32 |
| Icynene loose-fill (pour fill)[7] | 2.54 (1) | 0.70 | 4 | 28 |
| Molded expanded polystyrene (EPS) high-density | 2.54 (1) | 0.70 | 4.2 | 22–32[3] |
| Home Foam[8] | 2.54 (1) | 0.69 | 3.9 | 27.0 |
| Rice hulls[9] | 2.54 (1) | 0.50 | 3.0 | 24 |
| Fiberglass batts[10] | 2.54 (1) | 0.55–0.76 | 3.1–4.3 | 22–30 |
| Cotton batts (Blue Jean insulation)[11][12] | 2.54 (1) | 0.65 | 3.7 | 26 |
| Molded expanded polystyrene (EPS) low-density | 2.54 (1) | 0.65 | 3.85 | 26 |
| Sheep's wool Batt [13] | 2.54 (1) | 0.65 | 3.7 | 26 |
| Icynene spray[7][14] | 2.54 (1) | 0.63 | 3.6 | 25 |
| Open-cell polyurethane spray foam | 2.54 (1) | 0.63 | 3.6 | 25 |
| Cardboard | 2.54 (1) | 0.52–0.7 | 3–4 | 20–28 |
| Rock and slag wool batts | 2.54 (1) | 0.52–0.68 | 3–3.85 | 20–27 |
| Cellulose loose-fill[15] | 2.54 (1) | 0.52–0.67 | 3–3.8 | 20–26 |
| Cellulose wet-spray[15] | 2.54 (1) | 0.52–0.67 | 3–3.8 | 20–26 |
| Rock and slag wool loose-fill[16] | 2.54 (1) | 0.44–0.65 | 2.5–3.7 | 17–26 |
| Fiberglass loose-fill[16] | 2.54 (1) | 0.44–0.65 | 2.5–3.7 | 17–26 |
| Polyethylene foam | 2.54 (1) | 0.52 | 3 | 20 |
| Cementitious foam | 2.54 (1) | 0.35–0.69 | 2–3.9 | 14–27 |
| Perlite loose-fill | 2.54 (1) | 0.48 | 2.7 | 19 |
| Wood panels, such as sheathing | 2.54 (1) | 0.44 | 2.5 | 17 (9[17]) |
| Fiberglass rigid panel | 2.54 (1) | 0.44 | 2.5 | 17 |
| Vermiculite loose-fill | 2.54 (1) | 0.38–0.42 | 2.13–2.4 | 15–17 |
| Vermiculite[18] | 2.54 (1) | 0.38 | 2.13 | 16–17[3] |
| Straw bale[19] | 2.54 (1) | 0.26 | 1.45 | 16–22[3] |
| Papercrete[20] | 2.54 (1) | 2.6–3.2 | 18–22 | |
| Softwood (most)[21] | 2.54 (1) | 0.25 | 1.41 | 7.7 [17] |
| Wood chips and other loose-fill wood products | 2.54 (1) | 0.18 | 1 | 7.1 |
| Aerated/Cellular Concrete (5% moisture) | 2.54 (1) | 0.18 | 1 | 7.1 |
| Snow | 2.54 (1) | 0.18 | 1 | 7.1 |
| Hardwood (most)[21] | 2.54 (1) | 0.12 | 0.71 | 5.5 [17] |
| Brick | 2.54 (1) | 0.030 | 0.2 | 1.3–1.8[17] |
| Glass[6] | 2.54 (1) | 0.025 | 0.14 | 0.98 |
| Uninsulated glass pane | 0.6 (0.25) | 0.16 | 0.91 | 0.98 |
| Insulated glass (double glazed) | 1.6–1.9 (0.63–0.75) | 0.35 | 2 | 40 |
| Insulated glass (double glazed, hard low-e) | 1.6–1.9 (0.63–0.75) | 0.67 | 3.8 | 77 |
| Insulated glass (double glazed, soft low-e) | 1.6–1.9 (0.63–0.75) | 0.90 | 5.11 | 100 |
| Insulated glass (triple glazed) | 3.2–3.8 (1.2–1.5) | 0.67 | 3.8 | 40 |
| Poured concrete[6] | 2.54 (1) | 0.014 | 0.08 | 0.43–0.87 [17] |
| Material | Thickness cm (in) | RSI-value (m2·K/W) | R-value (ft2·°F·h/BTU) | RSI-value (m2·K/W) (per metre) |
- https://b2b-api.panasonic.eu/file_stream/pids/fileversion/3247
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- "The Icynene Insulation System". June 12, 2008. Archived from the original on June 12, 2008. Retrieved August 9, 2009.
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{{cite web}}: CS1 maint: archived copy as title (link) - "ICC Legacy Report ER-2833 – Cocoon Thermal and Sound Insulation Products". ICC Evaluation Services, Inc. Retrieved 2014-02-23.
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- "R-Value of Straw Bales Lower Than Previously Reported – EBN: 7:9". Buildinggreen.com. September 1, 1998. Retrieved 2018-10-03.
- "Archived copy" (PDF). Archived from the original (PDF) on 2014-07-07. Retrieved 2014-07-21.
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