Thermal insulation of natural stones

Thermal transmission coefficients (lambda) of natural stones

This article is part of a general article on the heat transfer coefficients

Lambda given in W / mK

  • Andesite 1.1

  • 2.2 Slate

  • Basalt 1.6

  • Gneiss 3.5

  • Granite 2.8

  • Sandstone (silica) 2.3

  • Calciferous sandstone 1.9

  • Quartz sandstone 2.6

  • 0.55 washing

  • 3.5 Marble

  • Meulière 1.8

  • Hard stone 1.7

  • 1.4 firm stone

  • Soft stone 1.1

  • Very hard stone 2.3

  • Very soft stone 0.85

  • 0.12 pumice stone

  • Porphyry 3.5

  • 2.2 shale

  • Flint 2.6

  • Trachyte 1.1

More:
Insulation Forum
Folder comparison on natural and ecological insulation
- Properties of others insulating materials, lambda coefficients of thermal transmission

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