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Building Footprint is a structure with a roof and enclosed walls.

The height of a building from the ground to the peak of the roof.

A ‘story’ is a building level that is above ground and enclosed by walls. A story can include rooms, garages: any space that is part of the dwelling.

Measured in degrees from horizontal, this is the pitch of the largest area of the roof.

A type of roof which may look flat, but has a slight curve called the “arch”.

A small tower that projects vertically from the wall of a building such as a medieval castle. A turret can have a circular top with crenelations, a pointed roof, or other kind of apex.

A vertical window that often protrudes from the middle of a single sloped roof panel. The bottom of the window is above the eave line of the roof.

A combination of a gable (box) and a hip style roof. A roof with a small gable at the top of a hip roof.

A roof or a part of a roof which is flat.

A gable roof, or part of a roof that is gable: with inverted v shaped ends.

Usually a symmetrical two-sided roof with two slopes on each side . The upper slope is positioned at a shallow angle, while the lower slope is steep.

The roof or part of a roof which is made of sloping faces that are rectangles or rhombuses on all sides.

A clipped overhang on the side of a roof. Overhead, it will look like a little triangle.

A roof with slopes down on all sides. Lower portion with long and steep slope and upper portion has a short shallow slope. A kind of 2-tiered hip roof.

Many flat roofs have a wall around the outer edge

Typically long, curved and built close to the ground.

The most common type of roof material on pitched roofs.

A roof system with a top layer consisting of small stones or gravel.

Layer of felt covered with hot asphalt makes for a smooth, dark surface.

Can be found on pitched roofs.

A roof system comprised of rubber membrane sheets.

Roof comprised of metal sheets, cladding. Zinc, copper and steel alloys are commonly used.

A roof system comprised of heat-sealed asphalt-based roofing membrane rolls.

A roof system comprised of membrane sheets made from Polyvinyl chloride (PVC) or Thermoplastic (TPO) materials.

A shiny, protective coating that is applied to the roof.

Roof comprised of a patchwork of shingles. Roof shingles are a roof covering consisting of individual overlapping elements.

Slate roofs have shingles made out of natural stone.

Designed mainly to keep out rain, and are traditionally made from locally available materials such as terracotta or slate.

A roof covering made from wedge-shaped cut and processed tree material.

Black asphalt road surfaces, driveways, car parks, etc.

A flat, horizontal surface made of moulded concrete.

Any surface that is driven on by vehicle(s) AND joins a private property to a public road.

Any public or private surface regularly driven on by motorized vehicles. Eg. cars, trucks, motorbikes.

Any non-natural solid surfaces, such as concrete, asphalt, tile, brick, or clay pavers, but EXCLUDING areas which would be marked as the roof class.

Pervious surfaces are mainly natural surfaces that allow water to percolate through to the area underneath rather than becoming runoff.

Natural style rocks and rock surfaces.

Includes bare earth, dirt, sand, mud, and gravel; beaches, clay tennis courts, gravel footpaths, sand/clay/dirt in construction sites.

Regularly mowed or maintained grassland.

It’s the pavement area where the surface starts to separate. Cracked pavement is the first step before pavement disintegrates.

Pavement area with ponding or dark stains.