<%@LANGUAGE="JAVASCRIPT" CODEPAGE="1252"%> Sustainable development
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Aluminium and PVC rainwater pipes

Life cycle analysis: wood and PVC window frames

 

This life cycle analysis was carried out for the UK Government. It looked at a single window frame, measuring 1200mm x 1200mm. It did not take into account any benefits from recycling the window frames.

Roll over each to see an explanation of the data.

 

 

Wood

PVC

Thermal conductivity
(W.m-2K-1)

2.6

2.57

Total energy
(production–use–disposal)
9150 MJ 9713 MJ

Natural gas consumption

178 kg

183 kg

Coal and oil

5.37 kg

18.23 kg

Greenhouse effect
(kg equivalent CO2)

457 kg CO2

487 kg CO2

Air acidification
(g equiv H +)

29.6

37.7

Photochemical oxidants / smog
(grammes equivalent of ethylene)

893

383

Water Eutrophication
(grammes equivalent of phosphate)

67

1.6

Depletion of non-renewable resources

81 kg

88.5 kg

Wastes

16.5 kg

28.8 kg

Lifetime costs to consumer

£147

£102

Continue to decide which option is the most sustainable.

 

Click here for a print version of the table.