Green Guide 2008 ratings

Building type >	Domestic
Category >	Roof Construction
Element type >	Flat roof: Inverted Deck

Element	Timber joists, OSB/3 deck, polymer modified polyester reinforced bitumen roofing membranes, waterproof rigid insulation, paving stones
Element Number	812530022
Summary Rating	A
Climate Change	A
Water Extraction	A
Mineral Resource Extraction	A
Stratospheric Ozone Depletion	B
Human Toxicity	A
Ecotoxicity to Freshwater	A
Nuclear Waste (higher level)	B
Ecotoxicity to Land	A
Waste Disposal	A
Fossil Fuel Depletion	B
Eutrophication	A
Photochemical Ozone Creation	A
Acidification	A
Kg of CO2 eq. (60 years)	80.0