JI Vulcasteel Roof Alpha is an insulated roof panel with a trapezoidal outer sheet, a mineral wool core and a perforated, slightly lined inner sheet. With a thickness of up to 240 mm, the panel offers excellent sound reduction and absorption, ideal for projects with high acoustic requirements. The panel combines strong mechanical performance with high fire resistance and is suitable for low humidity areas in both agricultural, industrial, tertiary and residential applications. The durable design guarantees a long service life without loss of quality.