Choose the covering to suit the roof pitch, the building structure and the way the building is used. Tile-effect metal roofing, trapezoidal steel sheet and insulated sandwich panels serve different functions. What matters is the cost of the whole roof build-up, as well as appearance, acoustics and the possibility of repair. Colour or the price of a single sheet is not enough. First check the design requirements, then compare the solutions approved for the given roof slope. Start with the pitch and dimensions of the slope. Every product has its own range of application. Tile-effect metal roofings come with different minimum pitches, so the parameter of one model does not apply to the whole group. At a low pitch, the laps, flashings and the method of water drainage become particularly important. The product data sheet and the installation instructions must be consistent with the design.

A lightweight roof covering is one whose mass does not excessively burden the roof structure, and the materials mentioned include trapezoidal sheet and metal roof tiles. Before comparing, check whether the stated mass refers to a sheet, a square metre of total area or of covering, and whether the overlap is included in the balance. Separately verify loads from snow, wind and equipment. The decisive factor is the weight of the entire roof system, not the sheet alone, so leave the choice to the designer.

Tile-effect metal roofing and trapezoidal steel sheet are both made from profiled sheet metal, but they organise the appearance of the house differently. The first creates a rhythm of transverse steps. The second runs clear lines from the eaves up the roof slope. The choice should also be determined by pitch, layout and structural requirements. The label 'for a house' or 'for a hall' alone explains little. On a low building the roof takes up a large part of the visible volume. Tile-effect metal roofing gives a division close to the arrangement of roof tiles. Trapezoidal steel sheet creates a calmer rhythm in one direction. Both solutions can suit a house if their scale harmonises with the façade and joinery.