oq-gem

Glossary for gem taxonomy

This Glossary is aligned with the GEM Building Taxonomy v2, support for v4 is coming soon.


Tiles of slate, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash. These tiles are usually thin and dark grey in colour. Overlapping and usually fastened to wood battens.

RMT4_Canada_OjdrovicN_1

Slate roof tiles, Canada (Ojdrovic Engineering)