Key:roof:shape

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Public-images-osm logo.svg roof:shape
Roof4 0.jpg
Description
Roof shape type. Edit or translate this description.
Group: Buildings
Used on these elements
should not be used on nodesshould not be used on waysmay be used on areasshould not be used on relations
Requires
Useful combination
Status: de facto

Wikidata

The key roof:shape=* is used to describe the shape of a building's roof, or the shape of the roof of a building part.

Tagging

These tags require an area feature tagged with building=* or building:part=*.

See Simple 3D buildings for more tags used to describe the shape and appearance of buildings.

Common values are shown below, with example diagrams:

Roof shape

You can characterize the roof of a building using a catalogue of well-known roof types.

Image Roof0 0.jpg Roof1 0.jpg Roof2 0.jpg Roof2 3.jpg Roof2 4.jpg Roof2 5.jpg
roof:shape flat skillion gabled half-hipped hipped pyramidal
Image Roof4 0.jpg Roof4 2.jpg Roof5 6.jpg Roof8.jpg Roof5 0.jpg Roof3 1.jpg
roof:shape gambrel mansard dome onion round saltbox

Other common values and problems

Value Comment
saltbox problematic due to conflicting definitions and meanings of "saltbox" in this context.[1]
double_saltbox, quadruple_saltbox As above.
sawtooth Factory style roofs.
cone,conical Both used rarely.
side_hipped Half of a hipped roof, not the same as half-hipped. One vertical gabled side, one 'hip' with three sloped faced. This is common on semi-detached properties where the whole building has a hipped roof but each house has a side_hipped roof.
lean_to Unclear, probably should be skillion.
shed Unclear, probably should be gabled or skillion.
gabled_row Unclear, sometimes used on a sawtooth roof, sometimes a row of gabled terraces.
crosspitched Cross shaped roof with two gables at 90degrees. AKA Cross gabled roof.
Saltbox - one meaning, conflicting with alternative one, from DE:OSM-4D/Roof table and some editors
Saltbox - one meaning, conflicting with alternative one, from Simple 3D Buildings and some editors
Saltbox house roof shape, according to Saltbox house

Other roof tags

Key Comment
roof:orientation=along/across For roofs with a ridge the ridge is assumed to be parallel to the longest side of the building (roof:orientation=along). But it can be tagged explicitly with this tag.
roof:height=* The height of the building (i.e. the height of the façade) is calculated as the building's total height=* minus roof:height=*.
roof:angle=* Alternatively to roof:height=*, roof height can be indicated implicitly by providing the inclination of the sides (in degrees).
roof:levels=* Number of floors within the roof, which are not already counted in building:levels=*.
roof:direction=* Direction from back side of roof to front, i.e. the direction towards which the main face of the roof is looking.

Proposed tags

Some roofs (e.g., square buildings) cannot be accurately modeled with the simple techniques described on this page.

Additional roof shapes are suggested in S3DB Proposals, including advanced approaches for manual modelling (e.g., ProposedRoofLines or parts of OSM-4D/Roof table).

This section is a wiki template, editable here.

Possible tagging mistakes

If you know places with this tag, verify if it could be tagged with another tag.
Automated edits are strongly discouraged unless you really know what you are doing!

See also

References