christian5454 wrote:Thank you Forhorse
Indeed I thought of a beamed roof slabs thinking that it was a delusional idea, but it really exists?
Yes it really exists, I saw that about twenty years ago on a house in the Pyrenees Orientales by the sea.
Otherwise a good frame well fixed with nailed flat tiles that already withstands very strong winds. Above all, it is necessary to limit the wind resistance and take care of the air tightness of the roof (screen under the roof, sparrow covers ...).
The complete roof that flies away exists, we have already seen it, but it remains extremely rare and I would say that it is especially in cases of poor workmanship or obsolescence. Generally it is rather a weak point at the level of a singular point where a tile takes off, then another, then another ... and finally the wind rushes under the roof and clears all the tiles. By taking special care of all the singular points (banks, sewer, ridge, flooding ...) we already avoid a lot of problems without falling into the blockhouse.
After the future does not seem very reassuring level meteorological phenomenon, so I understand the desire to do something that goes beyond the standards in the case of a new construction or a major renovation.