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YearRoof coverage% change
2008145.2+4%
2009152.7 +5%
2010 157.3 +3%
2011 162.1 +3%
2012 168.3 +4%
Pitched roofingÌý
Concrete tiles23.8
Slate12.7
Clay tiles4.5
Total41.1
Flat roofingÌý
Felt22.6
Single-ply PVCu 3.9
Asphalt 2.1
Total28.6
Metal roofingÌý
Steel62.8
Aluminium6.6
Total69.4
GRAND TOTAL 139.1
Single-ply membrane95-112
Natural slate150 -190
Aluminium standing-seam90 -120
Two-coat asphalt150 -190
High-performance bitumen felt100 -120
Stainless steel standing seam120 -160
Clay tiles65 - 90