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.
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