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The proposed changes to U-values
U-value figures in W/m2 °°ä
Current
value		 2002 2004 After
2005
Roof 0.25 0.20 0.16 0.16
Ground floor 0.45 0.30 0.25 0.22
Exposed floor 0.45 0.30 0.25 0.22
Exposed walls 0.45 0.35 0.30 0.25
Windows, doors and rooflights 3.30 2.20 2.00 1.80