Weights of Building Materials

The characteristic value of the loading, Gk, based on the mean value of material density imposed by typical building materials, is given in Table A1. The values are based on the content of BS 648:1964.

Table A1 Weights of building materials*


Unit mass


42 kg/m2

Roofing 2 layers, 19 mm thick

Damp-proofing, 19 mm thick

41 kg/m2

Bitumen roofing felts

0 0

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