Covered warehouses (storage of combustible materials or products in quantities exceeding 500 tonnes in buildings), with the exception of warehouses used for the storage of categories of materials, products or substances otherwise covered by this classification, buildings intended exclusively for the storage of motor vehicles and their trailers, establishments receiving the public and cold stores.products or substances otherwise covered by this nomenclature, buildings intended exclusively for the storage of motor vehicles and their trailers, establishments receiving the public and cold stores.