concrete roof tile

2.7 Impact assessment
2.7.1 Potential environmental impact of manufacturing phase
Table 2.1 illustrates the potential environmental impact of 1 t (functional unit) of concrete roof tile life cycle in
the manufacturing phase, in terms of the environmental impact categories, according to PCR 2008:04:
Global warming (kg CO 2 eq), Ozone depletion (kg CFC-11 eq.), Photochemical oxidation (kg C 2 H 4 eq),
Eutrophication (kg O 2 ), Acidification (kmol H+ eq.).
POTENTIAL ENVIRONMENTAL IMPACT
IMPACT CATEGORY UNIT TOTAL MANUFACTURING PHASE
GLOBAL WARMING (GWP100) kg CO 2 eq 253
OZONE LAYER DEPLETION (ODP) kg CFC-11 eq 1.3·10 -5
PHOTOCHEMICAL OXIDATION kg C 2 H 4 eq 0.02
EUTROPHICATION kg O 2 3.1
ACIDIFICATION kmol H+ eq 0.02
Tab.2.1- Potential environmental impact of LCA concrete roof tile [FU: 1 t of roof tiles]
2.7.2 Resource use and waste generation of manufacturing phase
Tables 2.2 and 2.3, describe results concerning to resource use (renewable and non-renewable with and
without energy content) and wastes, generated by 1 t of concrete roof tile life cycle in the manufacturing
phase.
RESOURCES USE WITH ENERGY CONTENT [kg]
TOTAL MANUFACTURING PHASE
TOTAL NON RENEWABLE 5 41.5
TOTAL RENEWABLE 6 0.5
ENERGY CONTENT OF RESOURCES USED [MJ]
TOTAL MANUFACTURING PHASE
TOTAL NON RENEWABLE 1575
TOTAL RENEWABLE 7 100
DIRECT ELECTRICITY CONSUMPTION 68.7
RESOURCES USE WITHOUT ENERGY CONTENT [kg]
TOTAL MANUFACTURING PHASE
TOTAL NON RENEWABLE 1161
TOTAL RENEWABLE 8 524699
Tab.2.2- Resources use with energy content [kg for 1 t of roof tiles]; Energy content of resources used [MJ for 1 t of roof
tiles]; Resources use with energy content [kg for 1 t of roof tiles].
WASTES GENERATION [kg]
TOTAL MANUFACTURING PHASE
HAZARDOUS 4·10 -3
OTHERS 33.3
Tab.2.3- Wastes generation [kg for 1 t of roof tiles]
5
Coal, gas, oil, peat, uranium.
6
Wood.
7
Energy from: hydro power, biomass, wind, barrage water, solar.
8
Water.
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