NF P31-313

Roofing products - Concrete roofing tiles with longitudinal interlock, mountain class - Definition, characteristics, marking

Le présent document a pour but de compléter les normes NF EN 490 et NF EN 491 en vue de l'utilisation de ce type de tuiles en climat de montagne. Les prescriptions du présent document s'ajoutent à celles définies dans la norme NF EN 490 à laquelle les tuiles de classe montagne doivent être en tout point conformes.

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