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According to the shape of a distinction between:
tiles with the bookmark (IL), profiled or flat,
tiles without bookmarks (NL)
tiles with a regular edge of the front (RF)
tiles with irregular edge of the front (IF).

As a result, the diversity of models, tiles have different dimensions. The total length of the roof tiles are typically 420 mm and average width of the facing 170, 200 and 300 mm.

Requirements
DIN EN 490 lists the following requirements for material to be studied: the length of the suspension (l1), Squareness, tile width (cw), equality, mounting holes, carrying capacity, water resistance, frost resistance, noses to the suspension.

Types of materials

In the building materials market is several kinds of tiles, briefly describe the most popular. The first type is a cement roof tiles, which are used in the case of sloping roofs. Such tiles are derived from the mortar, whose main component is quartz sand. Their production is used ceglarskich presses and pressing the fight. And what resources are necessary to ensure that the tiles were created? Necessary for their production are: quartz sand, cement and colored pigments. By adding additional resources and other materials can change the properties of mortar on the tiles. Most
The surfaces are mostly smooth tiles, rough surfaces are obtained by wpiekanie colored granules.