Why is wooden construction and its fastening so important?

If you choose ceramic tiles, with an approximate weight of 40 kg/m2 and having a roof with an average area of 150-180 m2, you can calculate the total weight of the roof. This would be in the range of 6000 kg to 7200 kg. It is obvious that to support such a weight, thick wood and proper fastening with galvanized bolts, screws, dowels and screws are required. This recommendation applies not only to ceramic tile roofs, but also to metal tiles and bituminous shingles.