Development of Roofing Tiles Support Made from Bituminous Plywood

: In this study, a new design of roof support was investigated to improve the system of roof coverings with roofing tiles. Usually, wood frames or slabs are often used as support for roofing tiles, which presents many disadvantages such as the expensive cost of the slabs and sometimes inefficient Corresponding wood frames. The new design proposed in this study uses the technique of Kodjo Attipou wood frames, but by interposing between the frames and the roofing tiles, a barrier is made of bituminous plywood. The barrier is composed of plywood 1.22 m in width, 2.44 m in length and 4 mm in thickness. The plywood is covered with a cloth of cotton fibers, impregnated in petroleum bitumen fluidized by kerosene. A test of permeability was conducted and has shown good results after 3 weeks of imbibition in water. The new composite material obtained can then serve as intermediate support in the system of roof coverings with roofing tiles and wood frames.