A roof is the top covering of a building, including all materials and constructions necessary to support it on the walls of the building or on uprights, providing protection against rain, snow, sunlight, extremes of temperature, and wind. A roof is part of the building envelope.
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 rock. Foliation may not correspond to the original sedimentary layering, but instead is in planes perpendicular to the direction of metamorphic compression.
Building material is material used for construction. Many naturally occurring substances, such as clay, rocks, sand, wood, and 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 manufacturing 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 habitats and structures including homes.
CRH plc is an international group of diversified building materials businesses whose headquarters is in Dublin, Ireland. It manufactures and supplies a wide range of products for the construction industry. The group was formed through a 1970 merger of two leading Irish public companies, Cement Limited and Roadstone Limited (1949). CRH's primary listings are on the London Stock Exchange and on Euronext Dublin, but from 25 September 2023 its primary listing will be on the New York Stock Exchange.
Holcim is a Swiss-based global building materials and aggregates flagship division of the Holcim Group. The original company was merged on 10 July 2015 with Lafarge to form LafargeHolcim as the new company and renamed to Holcim Group in 2021. When the merger was completed, the Holcim brand remain active within the group.
Domestic roof construction is the 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 shapes, and are covered with a variety of materials.
Architectural terracotta refers to a fired mixture of clay and water that can be used in a non-structural, semi-structural, or structural capacity on the exterior or interior of a building. Terracotta pottery, as earthenware is called when not used for vessels, is an ancient building material that translates from Latin as "baked earth". Some architectural terracotta is actually stronger than stoneware. It can be unglazed, painted, slip glazed, or glazed. A piece of terracotta is composed of a hollow clay web enclosing a void space or cell. The cell can be installed in compression with mortar or hung with metal anchors; such cells are often partially backfilled with mortar.
Solar shingles, also called photovoltaic shingles, are solar panels designed to look like and function as conventional roofing materials, such as asphalt shingle or slate, while also producing electricity. Solar shingles are a type of solar energy solution known as building-integrated photovoltaics (BIPV).
Tarmac Group Limited was a British building materials company headquartered in Wolverhampton, United Kingdom. It produced road surfacing and heavy building materials including aggregates, concrete, cement and lime, as well as operating as a road construction and maintenance subcontractor.
Firestone Building Products is a subsidiary of the Holcim Group, one of the world's largest building materials manufacturing company.
Mangalore tiles are a type of roof tile native to the city of Mangalore, India. A variation of the Marseilles tiles developed by the Gilardoni brothers at Altkirch, France, the tiles were first introduced to India in 1860 by German missionaries of the Basel Mission of Switzerland, who also established weaving enterprises.
Redland plc was a leading British building materials business. It was listed on the London Stock Exchange and was once a constituent of the FTSE 100 Index.
Brickworks is Australia's largest brick manufacturer, consisting of four divisions – Building Products Australia, Building Products North America, Industrial Property, and Investments.
Uganda Clays Limited (UCL), commonly referred to as Uganda Clays, is a building materials manufacturer in Uganda. The company manufactures baked clay building products, using Italian-made heavy clay processing machinery. The clay is excavated using surface mining techniques. The company is listed on the Uganda Securities Exchange (USE), being the first equity to list on the exchange in 2000.
RoofTG is a manufacturer of stone chip coated metal roof tiles based in Auckland, New Zealand and with plants in New Zealand, United States (California), Hungary and Malaysia. The company sells under both the Gerard and Decra brand names.
Roof tiles are overlapping tiles designed mainly to keep out rain or snow, and are traditionally made from locally available materials such as clay or slate. Later tiles have been made from materials such as concrete, and plastic.
Schiedel GmbH is an international supplier of chimney- and ventilation systems with headquarters in Nussbach, Austria. Schiedel offers ceramic chimneys, steel chimneys, fireplaces, and ventilation systems. It sells its products worldwide. The company has 26 production sites in 26 countries and a staff of approximately 1,400 employees.
Lafarge is a French industrial company specialising in cement, construction aggregates, and concrete. It is the world's largest cement manufacturer. It was founded in 1833 by Joseph-Auguste Pavin de Lafarge and is a part of the Holcim Group.
Standard Industries is an American privately-held global industrial conglomerate headquartered in New York City. Standard is the parent company of a number of industrial manufacturers, roofing and solar companies, and related real estate and investment platforms. David Millstone and David Winter are co-CEOs of the company.
