Molded ridge tile made of bitumen impregnated cellulose, and an application thereof

The application of a molded ridge tile (1) made of bitumen-impregnated cellulose for covering a roof, the tile being generally in the form of a section member having an elongate vertical plane of symmetry and comprising transversely a downwardly concave central portion (2) extended laterally and symmetrically on either side by two downwardly sloping plane flanges (3) so as to form an internal angle (α) between the flanges as measured on the concave side of the central portion, in which the central portion of the tile is placed to cover a roof ridge defined between two slopes (16) that form between them a ridge angle (γ), the flanges being applied flat against the two slopes of the roof,

• the application being characterized in that, starting from a free configuration in which the ridge tile is not subjected to any stress and in which the internal angle between the flanges has a determined value, the tile is applied by deforming its internal angle between the flanges without deteriorating or destroying the tile, to a range of ridge angles (γ) extending from 90 degrees to 163 degrees, and in that, in the absence of deformation stress, the internal angle between the flanges lies in the range 116 degrees to 96 degrees, i.e. giving a flange angle (β) relative to the horizontal that lies in the range 42 degrees to 32 degrees.