... roof 1)heat insulation 2)soundproof 3)waterproof 4)good acid and alkali resistance high usage roofSpecification: (mm)Width: 1020 Maximum ... 3ridge tile: 1100*800Functions: heat insulation, soundproof, waterproof, good acid and alkali resistance, fireproof, high intensity, high usage Payment TermsT/T, ... Europe, Oceania, South Asia, Southeast Asia, Western Europe acid and alkali resistance MGO roof