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Williams PAUCHET: Former National Defense contractor and freelancer - Site management trainer
INTRODUCTION
Originally used only in Mediterranean regions and partly in the South-West, canal tiles are now used in all regions. This has meant imposing specific rules for the installation of these materials, depending on the climatic zones in which they are used.
According to DTU 40.22 ( NF P31-201 and NF P31-202 1997 + amendments A1 to A4) – As with all roofing materials, clay roofing tiles can be used anywhere in mainland France, from north to south and from west to east.
However, the practical use corresponds to regional habits (mainly in the West, south of the Loire, Centre, Atlantic and Mediterranean regions). Use in mountain climates is not covered by DTU 40.22. In fact, this type of climate, conventionally defined by an altitude of over 900 m, is not well suited to clay roofing materials, due to frost phenomena which, by alternating and repeating freeze/thaw cycles, end up destroying the tiles.
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Clay roof tiles
Application to canal tile roofs
Bibliography
- (1) - Guide des couvertures en climat de montagne. - Édition Cahiers du CSTB, livraison 292, Cahier 2267-2, sept. 1988.
Also in our database
Standards
- DTU 40.22. Building work – Roofing with clay channel tiles – Part 1: Technical specifications – Part 2: special clauses (commercial reference to parts 1 and 2 of DTU 40.22) - NF P31-201 - 05-97
- DTU 40.21 – Building work – Interlocking or gliding clay tile roofs with raised edges – Part 1: Technical specifications – Part 2: special clauses (commercial reference for parts 1 and 2 of DTU 40.21), cancelled October 18, 2013 -...
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