Building material is any material which is used for
construction purposes. Many naturally occurring substances, such as
clay, rocks,
sand, and
wood, even twigs and leaves, have been used to construct buildings. Apart from naturally occurring materials, many man-made products are in use, some more and some less synthetic. The manufacture of building materials is an established industry in many countries and the use of these materials is typically segmented into specific specialty trades, such as
carpentry,
insulation,
plumbing, and
roofing work. They provide the make-up of s and
structures including
homes.