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Slate roofs are done with roofing tiles made from slate which
is an ancient sedimentary rock made up mainly from clay and
other volcanic materials, and compounded in the earth by
pressure and heat.
Slate is a very common roofing material because it is very
strong and also waterproof. It is very popular because it can
be easily shaped into the rectangles that we see on the roofs
of today. During the manufacture of roofing slates, big pieces
of slate rock are broken into small sheets quite easily. Again
this makes slate an ideal material for roofing.
Slate can last a very long time because slate is a very
hardwearing material. The
disadvantage of slate as
a roofing material is that it is very expensive to buy and replace. In some areas roofs have to
be kept maintained with specific types of slate in order to satisfy planning laws and keep the
architectural character of buildings uniform in certain areas. Finding specific types of slate in
such cases can be very difficult and there are few roofing contractors which undertake this
kind of work.
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