6. Geographic zones of coverage exposure
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Wind and rain concomitance zones and situations
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Zones
The DTUs for clay tile roofing define roof slopes and tile coverings by reference to "zones" and "situations" of exposure of the roof to the phenomenon of wind-rain concomitance. It is in fact the combination of precipitation and wind that is the cause of possible watertightness failures between roofing elements.
France is divided into 3 application zones (in view of the wind-rain concomitance phenomenon). These zones are specified in table 8 and illustrated on figure 11 .
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Geographic zones of coverage exposure
Protection against powdery snow
References
Works
Standardization
European standards
Tiles
- Clay roof tiles for discontinuous laying – Determination of flexural strength. French standard classification: P 31-307. - NF EN 538 - 12-1994
- Clay roof tiles for discontinuous laying – Determining physical characteristics – Part 1: impermeability test. French standard classification number: P 31-308-1. - NF EN 539-1 - 12-1994
- Clay roof tiles for discontinuous laying...
Technical organization websites
AFNOR (Association française de normalisation) http://www.afnor.fr
CSTB (Centre scientifique et technique du bâtiment) http://www.cstb.fr
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