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Roofing slates are roofing tiles made out of
The Romans were the first to mine and install standard-sized slate on roofs.
In his writings,
Roofing slates are roofing tiles made out of slate
Slate is a fine-grained, foliated, homogeneous, metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade, regional metamorphism. It is the finest-grained foliated metamorphic ro ...
. The rock is split into thin sheets which are cut to the requires size before shipment. This contrasts to slabs which are milled to produce larger structural components. They are the primary product of the slate industry
The slate industry is the industry related to the extraction and processing of slate. Slate is either quarried from a ''slate quarry'' or reached by tunneling in a ''slate mine''. Common uses for slate include as a roofing material, a flooring ma ...
.
History
The Romans were the first to mine and install standard-sized slate on roofs.
In his writings, Pliny the Elder
Gaius Plinius Secundus (AD 23/24 79), known in English as Pliny the Elder ( ), was a Roman Empire, Roman author, Natural history, naturalist, and naval and army commander of the early Roman Empire, and a friend of the Roman emperor, emperor Vesp ...
mentions the existence of slate in Liguria, near Genoa.
Modern production
The world's biggest consumer of slate is France, followed by the UK, USA and Germany. In 2012, Spain produced more than of slate worth about $380 million. This made it the largest slate producer in the world, followed by China and Brazil.See also
* *Roofing material
Domestic roof construction is the framing (construction), framing and roof covering which is found on most detached houses in cold and temperate climates. Such roofs are built with mostly timber, take a number of different List of roof shapes, ...
* List of commercially available roofing materials
* Slate industry in Wales
The existence of a slate industry in Wales is attested since the Roman period, when slate was used to roof the fort at Segontium, now Caernarfon. The slate industry grew slowly until the early 18th century, then rapidly during the Industria ...
(has information about different sizes of roofing slates)
References
Roofs Stone buildings Slate {{architecturalelement-stub