It is a kind of 9 ribs soundproof roofing sheet made up of 3 layers ; sheeting + PU layer + PP / PVC film layer . Special adhesion of PU with sheeting and PP / PVC film, it forms a unified, film and absolutely solid block.
Is soundproof roofing sheet with structure of 3 layers: Ton + PU layer + PP / PVC film. Thanks to the advanced technology and the special adhesion properties of PU to the corrugated iron surface and the PP / PVC film, it forms a uniform, solid and completely flat mass that no adhesive can get.