Trapezoidal / Corrugated sheets are usually made of steel (some are made from painted galvanized steel sheets) or aluminium sheets with a series of corrugations, each in the shape of a trapezium, (referred to as Trapezoidal Profile) which lap together side to side and end to end. They consist of webs and beads. The high points are the webs, the depressions are called beads. These webs and beads can be different widths, so that each result in a completely different look. A distinction is made between a low profile and a high profile. The sheet is a robust and economical material. It is available in a selection of coatings and colours and meets the most diverse expectations.
Trapezoidal sheets are good for buildings and structures with no requirements for heat insulation. It is important to know that wetness can appear on the internal side of trapezoidal sheet due to the internal and external temperature and humidity values differences (condensation). For heat insulated buildings and structures one may consider using the sandwich panel (www.monotrade.com/sandwichpanel) which comes in different forms for diverse usage.
Advantages and Disadvantages of Trapezoidal sheets
Some Advantages of Trapezoidal sheets include:
The biggest disadvantage of trapezoidal roofing sheets is poor acoustics. This mean that it is relatively loud when it rains. This is not so bad if the roof covered with trapezoidal sheet metal is far enough away from the house, such a roof near the living area where this sound can be heard but can be quite annoying.
Uses of Trapezoidal / Corrugated Sheet:
Trapezoidal sheets are used in residential buildings and structures, especially for roofs and ceilings. In the industrial sector trapezoidal sheets are used for both roofs and walls. They are also use in areas such as agricultural structures, warehouse buildings with no requirements for heat insulation, Industrial buildings, Military buildings, Social facilities, Construction Sites, Silos, Hypermarkets, Shopping centres and can be used in constructions such as wholesale market hall buildings whose carrying systems are steel or prefabricated concrete structures.