Building Construction Handbook, Eighth Edition

Typical values †

Material Density

(kg/m^3 )

Conductivity ()

(W/mK)

WALLS:

Boarding (hardwood) 700 0„1 8

.. .. .. (softwood) 500 0„1 3

Brick outer leaf 1 700 0„84

.. .. inner leaf 1 700 0„62

Calcium silicate board 875 0„1 7

Ceramic tiles 2300 1 „30

Concrete 2400 1 „93

.. .. .. .. .. 2200 1 „59

.. .. .. .. .. 2000 1 „33

.. .. .. .. .. 1 800 1 „1 3

.. .. .. .. .. (lightweight) 1 200 0„38

.. .. .. .. .. (reinforced) 2400 2„50

Concrete block (lightweight) 600 0„1 8

.. .. .. .. .. .. .. (mediumweight) 1 400 0„53

Cement mortar (protected) 1 750 0„88

.. .. .. .. .. .. .. (exposed) 1 750 0„94

Fibreboard 350 0„08

Gypsum plaster (dense) 1 300 0„57

Gypsum plaster (lightweight) 600 0„1 6

Plasterboard 950 0„1 6

Tile hanging 1 900 0„84

Rendering 1 300 0„57

Sandstone 2600 2„30

Wall ties (st/st) 7900 1 7„00

ROOFS:

Aerated concrete slab 500 0„1 6

Asphalt 1 900 0„60

Bituminous felt in 3 layers 1 700 0„50

Sarking felt 1 700 0„50

Stone chippings 1 800 0„96

Tiles (clay) 2000 1 „00

.. .. (concrete) 21 00 1 „50

Wood wool slab 500 0„10

Thermal Insulation, Density and Thermal Conductivity---1