Thermal Conductivity of Common Construction Materials
Thermal conductivity is a property that describes the ability of a material to conduct heat. The following table provides a curated list of thermal conductivity values for common construction materials at standard room temperature (approximately 20°C or 68°F).
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| Andesite | 0.6 - 1.26 |
| Basalt | 0.92 - 2.6 |
| Concrete (1-4 dry) | 0.75 |
| Concrete (cinder) | 0.34 |
| Concrete (lightweight) | 0.21 |
| Concrete (stone; 1-2-4 mix) | 1.46 |
| Conglomerate | 2.09 |
| Diabase | 1.17 |
| Dolomite | 2.93 - 5.0 |
| Gneiss | 2.1 - 3.4 |
| Granite | 2.51 - 3.97 |
| Limestone (hard) | 1.67 - 2.15 |
| Limestone (soft) | 0.84 - 3.38 |
| Marble | 2.51 - 3.72 |
| Plaster (molded, dry) | 0.43 |
| Quartzite | 2.92 - 8.04 |
| Sand (dry) | 0.27 - 0.34 |
| Sandstone (hard) | 4.2 - 4.6 |
| Sandstone (medium) | 1.30 - 4.18 |
| Sandstone (soft) | 1.0 - 1.30 |
| Schist | 0.58 - 3.26 |
| Slate | 0.9 - 3.3 |
Related Tables
References: 1) Cardarelli, François. Materials Handbook: A Concise Desktop Reference. Switzerland: Springer International Publishing, 2018.