Steel trapezoid plates
SkanDek steel roof elements come with a dipped galvanized steel sheets on the ceiling side, and possibly a visible trapezoid plate on the roof side.
Datasheet on HV18 trapezoidal steel sheet. Steel trapezoidal sheet has a characteristic yield strength of 350MPa, see. Eurocode 3, DS / EN1993-1-3.
The perforated trapezoidal steel sheet is available as sound absorption class B and D.
Visible ceilings are provided with inddæk solutions. Glades and flashings of skylights can add.