Abstract: A device for covering and protecting machinery has at least one covering and protecting surface and a plurality of modular elements positioned side by side. Each modular element has a central body, on opposite sides of which there extend a first and second lateral protrusion. The ends of the first and second protrusions of two adjacent modular elements overlap in such a way as to form a T shape, and are connected to each other by a cylindrical hinge positioned between them. Each central body, together with at least the first or the second lateral protrusion forms a corresponding portion of the covering and protecting surface, and the surface portions formed by the modular elements are placed side by side in contact with each other so as to make a substantially uninterrupted covering and protecting surface.