Key:building:material
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 building:material
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| Description |
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Outer material for the building façade. 
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| Group: buildings |
| Used on these elements |
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| Useful combination |
| See also |
| Status: de facto |
| Tools for this tag |
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The key building:material=* is used to describe the outer surface material of building walls, also know as the facade or façade.
This information can be used to model 3D buildings.
Some 3D renderers set the colour of a building based on this tag[1].
This tag should be used to determine what the external layer of building walls is made of or covered with, and not what the walls are made of.
For example: if the walls of a building are made of bricks, plastered and painted, then the appropriate tag would be building:material=plaster.
Values
| Value | Short description | Example image | Count |
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| cement_block |  Concrete masonry unit or cement blocks, concrete blocks, breeze blocks (UK), concrete hollow blocks (Philippines)
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| brick | bricks | 
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| plaster | building coated in plaster (or stucco) | 
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| wood | wood | 
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| concrete | concrete, reinforced concrete | 
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| metal | metal | 
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| steel | steel, non-decorative metal, often seen on industrial buildings or tanks | .jpg)
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| stone | stones Similar values: limestone, sandstone |
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| glass | glass |  
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| mirror | mirrored-glass | 
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| mud | dried mud Similar values: adobe, rammed_earth |
 .jpg)
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| masonry | Unspecified masonry - better use brick, cement_block See also building:structure=* |
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| tin | tin |
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| plastic | plastic |  
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| timber_framing | A half-timbered building facade. See also Timber framing.
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| sandstone | sandstone Similar values: limestone, stone |
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| clay | clay Similar values: loam, adobe |
.jpg)
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| reed | reed | 
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| loam | loam Similar values: clay, adobe |
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| marble | marble | 
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| copper | copper (see Copper in architecture on Wikipedia) |
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| slate | slate | 
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| vinyl | plastic vinyl strips | 
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| limestone | limestone Similar values: stone, sandstone |
 
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| tiles | generally ceramic tiles | 
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| metal_plates | metal plates See also: metal |
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| bamboo | bamboo (see Bamboo construction on Wikipedia) |
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| adobe | indicates adobe, aka cob, wichert, puddled clay, bousille, etc. Similar values: clay, loam |
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| rammed_earth | indicates rammed earth
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| solar_panels | solar panels |  
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| tyres | tyres | 
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| user defined | See Taginfo for all common values. |
Rendering examples
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building:material=brick on OSM2World -
building:material=plaster on OSM2World -
building:material=concrete on OSM2World -
building:material=glass on OSM2World
See also
- roof:material=* – roof material
- material=* – material
- Simple 3D buildings – overview of tags for mapping 3D buildings
- List of building materials on Wikipedia