Resources - The Ecology of Building Materials - page 22

Table 1.3: Effects on resources - continued

Material resources Energy resources Water

Technical properties

Statistical Raw material Primary energy consumption Combustion Use of

value (2)

Weight Durability Loss number (see Table 1.1) water

North Europe Central Europe

(kg/m 3 ) factor 1 Material of years left R = renewable (MJ/kg) (litres/kg)

(MJ/kg) (MJ/kg)

(%) as reserves

Styrene butadiene rubber
(SBR)

1000 low/medium 40 27 70

Timber:
untreated

550 medium/high 20 R 3 3 16 330

pressure impregnated 550 medium/high 20 21 R-6-2 (16)

laminated timber 550 medium/high 390 R-25 4 16

Wood fibre insulation 100 medium - R

Cork 70 medium 11 - R 4 24

Wood fibre board: porous
without bitumen 300 medium - R 16 10 350

porous with butumen 350 medium 40 R-27 18 (10)

hard without bitumen 900 medium/high 20 - R 4 15 7 2,500

hard with bitumen 900 medium/high 20 40 R-27 (7)

Woodwool slabs 230 High 21 - R-14 20 (7)

Chipboard 750 medium/high 20 390 R-25 2 4 (14) 1000