Building Footprints

• Roof of a permanent structure such as a house, unit, commercial building, garage, large garden shed, carport.
• Rooftop gardens
• Roof of stadiums
• Flat commercial roof
• Any material (tiles, corrugated iron, wood, concrete, etc)
• Partially installed roofs - only the part which has been installed
• Roofs that can be used for other purposes (for example, dining area), but are primarily designed to keep the weather out

• Roofs which are primarily designed for a purpose other than keeping the weather out. Eg. roof top car parks and gardens. 
• Temporary shade structures, awnings, anything without a hard surface for a roof.
• Portable structures (e.g. caravans).
• Roofs on temporary structures
• Parts of a building undergoing construction where the roof is not yet installed

• US
• Australia