Civil Engineering Reference
In-Depth Information
Table 15.8: Environmental profiles of external cladding
Pollution effects
Ecological potential
Quantity of
Environ-
Effect on resources
material used
Extraction and
Building
In the
As
Re-use and
Local
mental
Material
(kg/m 2 )
Materials
Energy
Water
production
site
building
waste
recycling
production
profile
Stainless steel, from
ore
3.8
3
2
2
3
1
2
2
3
Galvanized steel,
from ore
3.7
3
2
2
3
1
2
2
3
Aluminium, 50%
material recycling
1.6
2
3
3
3
1
2
2
3
Cement-based
boarding
20.5
1
2
2
2
1
1
1
2
Lime sandstone
96
1
2
2
2
1
1
1
2
Calcium silicate
boarding
11
1
1
1
1
1
1
1
Hydraulic lime render 85
1
2
2
2
2
1
1
2
Lime cement render
88
1
2
2
2
2
1
1
2
Gypsum based render
52
1
2
2
2
1
1
2
2
Stone on steel
support system
81
1
1
1
1
1
2
1
1
Brick
108
1
3
3
2
1
1
1
2
Timber boarding,
without impregnation
13.7
1
1
1
1
1
1
1
1
Timber boarding,
impregnated
13.7
2
1
2
2
3
3
3
3
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