5.1 : Building Materials/Insulation




5.1.4 "Green Roofs" Completed by Year (Thousand SF)
North America
Extensive Intensive Mixed Total
2004 917 406 4.9 1,327
2005 1,785 488 198.7 2,472
2006 1,957 1,033 73.8 3,064
2007 - - - 2,408
2008 - - - 3,182
2009 - - - -
2010 3,109 172 312 4,341
United States
Extensive Intensive Mixed Total
2004 777.1 405.8 3.924 1,187
2005 1,570 476.4 102.9 2,150
2006 - - - -
2007 - - - 1,953
2008 - - - 2,647
Note(s): 1) Extensive: soil depth of less than 6 inches. 2) Intensive: soil depth greater than 6 inches. 3) Mixed: at least 25% break up between extensive and intensive. 4) These data are best used as a gauge of activity in this market rather than actual amount of green roofs.









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Sources:

Green Roof Industry Survey, Green Roof Infrastructure Monitor