Roof sheet for vehicles with damping vibration element wherein the roof sheet is configured to be attached via its contour to a vehicle chassis defining, said roof sheet, a free surface (4.1) that has a dimension M in the direction of travel of the vehicle and a dimension N in a direction perpendicular to the direction of travel of the vehicle, wherein the damping vibration element is joined to the free surface (4.1) of the roof sheet, wherein the damping vibration element comprises: • a formed sandwiched reinforcing element comprising: ∘ a carrier (2.1) formed by a sheet of polyurethane foam, ∘ a first layer of reinforcing fibres (2.2) on a first face of the carrier (2.1), ∘ a second layer of reinforcing fibres (2.3) on a second face of the carrier (2.1), ∘ a first covering layer (2.4) on the first layer of reinforcing fibres (2.2), ∘ a second covering layer (2.5) on the second layer of reinforcing fibres (2.3), ∘ an adhesive (2.6) to join the carrier (2.1), the first layer of reinforcing fibres (2.2), the second layer of reinforcing fibres (2.3), the first covering layer (2.4) and the second covering layer (2.5), wherein the reinforcing element has a dimension m along the direction of travel of the vehicle and a dimension n along the direction perpendicular to the direction of travel of the vehicle, • fixing means of the reinforcing element to the roof sheet, characterised in that the fixing means comprise: ∘ at least five adhesive coupling lines (3.1) parallel to the direction of travel of the vehicle and joined on one side of the reinforcing element, from which a first adhesive coupling line (3.1.1) and a second adhesive coupling line (3.1.2) are located close to the side edges (2.7) of the reinforcing element, wherein said side edges (2.7) are parallel to the direction of travel of the vehicle, ∘ the first adhesive coupling line (3.1.1) and the second adhesive coupling line (3.1.2) are separated from the side edges (2.7) of the reinforcing element a distance of less than 50 mm, ∘ the separation between two contiguous adhesive coupling lines (3.1) has a dimension b of less than 120 mm and more than 80 mm, ∘ the adhesive coupling lines (3.1) have a length 1 of more than 50% of the dimension m of the reinforcing element where the dimension m of the reinforcing element is more than 50% of the dimension M of the roof sheet and the dimension n of the reinforcing element is more than 50% of the dimension N of the roof sheet. • a formed sandwiched reinforcing element comprising: ∘ a carrier (2.1) formed by a sheet of polyurethane foam, ∘ a first layer of reinforcing fibres (2.2) on a first face of the carrier (2.1), ∘ a second layer of reinforcing fibres (2.3) on a second face of the carrier (2.1), ∘ a first covering layer (2.4) on the first layer of reinforcing fibres (2.2), ∘ a second covering layer (2.5) on the second layer of reinforcing fibres (2.3), ∘ an adhesive (2.6) to join the carrier (2.1), the first layer of reinforcing fibres (2.2), the second layer of reinforcing fibres (2.3), the first covering layer (2.4) and the second covering layer (2.5), wherein the reinforcing element has a dimension m along the direction of travel of the vehicle and a dimension n along the direction perpendicular to the direction of travel of the vehicle, ∘ a carrier (2.1) formed by a sheet of polyurethane foam, ∘ a first layer of reinforcing fibres (2.2) on a first face of the carrier (2.1), ∘ a second layer of reinforcing fibres (2.3) on a second face of the carrier (2.1), ∘ a first covering layer (2.4) on the first layer of reinforcing fibres (2.2), ∘ a second covering layer (2.5) on the second layer of reinforcing fibres (2.3), ∘ an adhesive (2.6) to join the carrier (2.1), the first layer of reinforcing fibres (2.2), the second layer of reinforcing fibres (2.3), the first covering layer (2.4) and the second covering layer (2.5), • fixing means of the reinforcing element to the roof sheet, ∘ at least five adhesive coupling lines (3.1) parallel to the direction of travel of the vehicle and joined on one side of the reinforcing element, from which a first adhesive coupling line (3.1.1) and a second adhesive coupling line (3.1.2) are located close to the side edges (2.7) of the reinforcing element, wherein said side edges (2.7) are parallel to the direction of travel of the vehicle, ∘ the first adhesive coupling line (3.1.1) and the second adhesive coupling line (3.1.2) are separated from the side edges (2.7) of the reinforcing element a distance of less than 50 mm, ∘ the separation between two contiguous adhesive coupling lines (3.1) has a dimension b of less than 120 mm and more than 80 mm, ∘ the adhesive coupling lines (3.1) have a length 1 of more than 50% of the dimension m of the reinforcing element